WO2008015538A2 - Use of diaza- and thiaza-cycloalkanediones for preventing and/or treating pain and /or migraine - Google Patents

Use of diaza- and thiaza-cycloalkanediones for preventing and/or treating pain and /or migraine Download PDF

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Publication number
WO2008015538A2
WO2008015538A2 PCT/IB2007/002194 IB2007002194W WO2008015538A2 WO 2008015538 A2 WO2008015538 A2 WO 2008015538A2 IB 2007002194 W IB2007002194 W IB 2007002194W WO 2008015538 A2 WO2008015538 A2 WO 2008015538A2
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Prior art keywords
butyl
chroman
dioxoperhydropyrrolo
imidazole
group
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PCT/IB2007/002194
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French (fr)
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WO2008015538A3 (en
Inventor
Thomas STÖHR
Maria Luz Lopez Rodriguez
Bellinda Benhamu Salama
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Schwarz Pharma S.L.
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Publication of WO2008015538A2 publication Critical patent/WO2008015538A2/en
Publication of WO2008015538A3 publication Critical patent/WO2008015538A3/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/41641,3-Diazoles
    • A61K31/41881,3-Diazoles condensed with other heterocyclic ring systems, e.g. biotin, sorbinil
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/425Thiazoles
    • A61K31/427Thiazoles not condensed and containing further heterocyclic rings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/425Thiazoles
    • A61K31/429Thiazoles condensed with heterocyclic ring systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/4353Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
    • A61K31/437Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/47Quinolines; Isoquinolines
    • A61K31/4709Non-condensed quinolines and containing further heterocyclic rings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/495Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
    • A61K31/4985Pyrazines or piperazines ortho- or peri-condensed with heterocyclic ring systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/04Centrally acting analgesics, e.g. opioids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00Drugs for disorders of the nervous system
    • A61P25/06Antimigraine agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P29/00Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]

Definitions

  • the present invention relates to methods for preventing and/or treating pain and/or migraine in a subject in need of such prevention and/or treatment. These methods comprise administering to the subject a diaza- and thiaza- cycloalkanedione compound, an isomer of the compound, or a hydrate, solvate, or salt of the compound or isomer.
  • the present invention is directed to a method for preventing and/or treating a condition selected from the group consisting of pain and migraine in a subject in need of such prevention and/or treatment.
  • the method comprises administering to the subject a compound corresponding in structure to Formula I, a stereochemical isomer of the compound, or a hydrate, solvate, or pharmaceutically acceptable salt of the compound or isomer:
  • R 1 , R 2 , R 3 , R 4 , R 5 , Z, m, and n are defined as follows: [0003] R 1 is H, -(CH 2 ) S -, -(CH 2 ) 4 -, -CH 2 -S-CH 2 -, or -S-CH 2 -CH 2 -. [0004] R 2 is N or S.
  • R 3 is H, Cj-Qo-alkyl, aryl, or arylalkyl.
  • R 4 is -O- or -CH 2 -.
  • R 5 is
  • Z is C 2 -Cio-alkylene, C 2 -C 1 o-alkenylene, or C 2 -C 10 -alkynylene.
  • n is zero or 1.
  • m is zero, 1, or 2.
  • Each R 6 is independently H, Ci-Cs-alkyl. Ci-Cs-alkoxy, OH, F 5 Cl 5 Br 5 or I.
  • X is -O-, -S-, -N(H)-, or -N(CH 3 )-.
  • Y is -O- and -N(H)-.
  • W is -S- or -N(H)-.
  • the present invention is directed to a method for preventing and/or treating a condition selected from the group consisting of pain and migraine in a subject in need of such prevention and/or treatment.
  • the method comprises administering to the subject a compound corresponding in structure to Formula I 5 a stereochemical isomer of the compound, or a hydrate, solvate, or pharmaceutically acceptable salt of the compound or isomer:
  • Ri, R 2 , R 3 , R 4 , R 5 , Z, m, and n are defined as follows:
  • R 1 is selected from the group consisting of H, -(CH 2 ) 3 -, -(CH 2 ) 4 -, -CH 2 -S-CH 2 -, and
  • R 2 is selected from the group consisting of N and S.
  • n is zero or 1.
  • Z is selected from the group consisting of C 2 -C 1 o-alkylene, C2-C 1 o-alkenylene, and
  • R. 3 is selected from the group consisting of H, Q-Qo-alkyl, aryl, and arylalkyl.
  • m is zero, 1, or 2.
  • R 4 is selected from the group consisting of -O- and -CH 2 -.
  • R 5 is selected from the group consisting of
  • Each R 6 is independently selected from the group consisting of H, CrCs-alkyl,
  • Ci-C 5 -aJkoxy OH, F, Cl, Br, and I.
  • X is selected from the group consisting of -O-, -S-, -N(H)-, and -N(CH 3 )-.
  • Y is selected from the group consisting of -O- and -N(H)-.
  • W is selected from the group consisting of -S- and -N(H)-.
  • the subject is a human.
  • the condition being prevented and/or treated comprises pain.
  • the pain being prevented and/or treated comprises chronic pain, particularly chronic inflammatory pain and/or chronic neuropathic pain.
  • condition being prevented and/or treated comprises migraine.
  • a therapeutically effective is administered to the subject.
  • the compound being administered corresponds in structure to
  • R 5 is selected from the group consisting of:
  • the compound being administered corresponds in structure to Formula I, wherein Z is butylene, and R 5 is selected from the group consisting of
  • the compound being administered corresponds in structure to Formula I, wherein R 3 is H. [0039] In some embodiments, the compound being administered is selected from the group consisting of:
  • the compound being administered corresponds in structure to Formula I wherein m is zero; R 4 is CH 2 ; and R 5 is chromanyl.
  • the compound being administered corresponds in structure to Formula I wherein m is 2; R 4 is O; and R 5 is phenyl or 1-naphthyl.
  • the compounds being administered correspond in structure to Formula II:
  • R 1 and R 2 are H or are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring; then R 1 is H and R 2 is absent;
  • R 4 is selected from the group consisting of N and S;
  • n being an integer from 0 to 1 ;
  • X is selected from the group consisting of C 2 -C 1 o-alkyl, C 2 -C 10 -alkenyl and -CH 2 -Y-
  • m being an integer from 1 to 2;
  • R 3 is selected from the group consisting of chroman-2-yl, 2-quinolyl and -O-phenyl, wherein the aromatic ring of the chromanyl moiety, the quinolyl or the phenyl residue is optionally substituted by one or more groups chosen from Q-C ⁇ -alkoxy, CrC 6 -alkyl, halogen,
  • Ci-C 6 -alkylcarbonyl phenylcarbonyl, phenyl(C 1 -C 6 )alkylcarbonyl, Q-C ⁇ -alkoxycarbonyl, phenyl(Ci-C 6 )alkoxycarbonyl, d-Q-alkylcarbonylamino, hydroxy, cyano, nitro, amino, N-(C 1 -
  • the compounds being administered have the general Formula II, wherein R 3 is preferably selected from the group consisting of chroman-2-yl, 2-quinolyl and -O- phenyl, wherein the phenyl residue is optionally substituted by a group chosen from C 1 -C 6 - alkoxy, CrC ⁇ -alkyl, or halogen.
  • R 3 is preferably selected from the group consisting of chroman-2-yl, 2-quinolyl and -O- phenyl, wherein the phenyl residue is optionally substituted by a group chosen from C 1 -C 6 - alkoxy, CrC ⁇ -alkyl, or halogen.
  • the compounds being administered have the general Formula H 5 wherein
  • m is 1 and R 3 is optionally substituted chroman-2-yl;
  • m is 2 and R 3 is optionally substituted O-phenyl; or
  • m is 1 and R 3 is optionally substituted 2-quinolyl.
  • the compounds being administered have the general Formula II, wherein m is 1 and R 3 is chroman-2-yl, the phenyl ring of which is unsubstituted or substituted by one or more groups chosen from Ci-C 6 -alkoxy, Ci-C ⁇ -alkyl, halogen, C 2 -C 6 -alkenyl, halo-(C 1 -C 6 )-alkyl, halo-(C 1 -C 6 )-alkoxy, phenyl, phenyl(CrC 6 )-alkyl, phenoxy, C t -C ⁇ -alkylcarbonyl, phenylcarbonyl, pheny ⁇ Ci-C ⁇ alkylcarbonyl, C 1 -C 6 - alkoxycarbonyl, pheny ⁇ Q-C ⁇ alkoxycarbonyl, Ci-C ⁇ -alkylcarbonylarnino, hydroxy,
  • chroman-2-yl refers to an unsubstituted chroman-2-yl residue.
  • the compounds being administered have the general Formula II, wherein R 1 and R 2 are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring and R 4 is N.
  • R 1 and R 2 are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring and R 4 is N.
  • X is selected from the group consisting of C 2 -C 1 o-alkyl, (.E)-2-butenyl, 3-methylbenzyl or 4- methylbenzyl are preferred.
  • the compounds being administered have the general Formula
  • Ri is H; R 2 is absent; R 4 is S; m is 1; R 3 is chroman-2-yl; and X is selected from the group consisting of C 2 -C 1 o-alkyl, C 2 -Ci O -alkenyl, or -CH 2 -Y-CH 2 -, wherein Y is phenyl.
  • n is preferably 0.
  • R 3 is chroman-2-yl; and X is C 2 -C 1 o ⁇ alkyl. In one embodiment n is preferably zero (0).
  • Another embodiment of the invention relates to compounds being administered which have the general Formula II, wherein m is 2 and R 3 is -O-phenyl optionally substituted by one or more groups chosen from CrC 6 -alkoxy, Q-Q-alkyl, halogen, C 2 -C 6 -alkenyl, halo-(C 1 -C 6 )-alkyl, halo-(Ci-C 6 )-alkoxy, phenyl, phenyl(Ci-C 6 )-alkyl, phenoxy, d-C ⁇ -alkylcarbonyl, phenylcarbonyl, phenyl(C 1 -C 6 )alkylcarbonyl, Cj-C 6 -alkoxycarbonyl, phenyl(Ci- C 6 )al
  • Exemplary compounds of Formula II being administered are those wherein the phenyl residue is optionally substituted by one or more groups chosen from methoxy, ethoxy, propoxy, isopropoxy, ethyl, propyl, isopropyl, bromide, trifluoromethyl, methylamide or ethoxycarbonyl.
  • Particularly preferred compounds being administered are those compounds wherein the phenyl residue is substituted in ortho and/or meta position, particularly in ortho position.
  • the compounds being administered have the general Formula II, wherein R 1 and R 2 are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring; and R 4 is N.
  • R 1 and R 2 are methylene groups bound together forming with the heterocyclic ring a 5- membered ring; R 4 is N; n is 0; X is C 2 -C 10 -alkyl; m is 2; R 3 is -O-phenyl optionally substituted by one or more groups chosen from phenyl, Ci-C ⁇ -alkoxycarbonyl, C t -C ⁇ -alkylcarbonylamino,
  • the compounds being administered have the general formula (1):
  • R 3 is O-phenyl substituted by a group chosen from Q-C ⁇ -alkoxy, C 1 -C 6 - alkyl, or halogen.
  • R 1 is H
  • R 2 is absent and R 4 is S. Particularly those wherein X is C 2 -C 1 o-alkyl and n is 0.
  • the compounds being administered have the general Formula II, wherein m is 1 and R 3 is 2-quinolyl, the aromatic ring of which is unsubstituted or substituted by one or more groups chosen from d-C 6 -alkoxy, C 1 -
  • C 6 )-alkyl phenoxy, Cj-C ⁇ -alkylcarbonyl, phenylcarbonyl, phenyl(C 1 -C 6 )alkylcarbonyl, C 1 -C 6 - alkoxycarbonyl, phenyl ⁇ -C 6 )alkoxycarbonyl, d-C ⁇ -alkylcarbonylamino, hydroxy, cyano, nitro, amino, N-(C 1 -C 6 )-alkylamino, carboxy, sulfo, sulfamoyl, sulfonylamino, (C]-C 6 )alkylaminosulfonyl or (C 1 -C 6 )alkylsulfonylamino; wherein each alkyl is optionally substituted with hydroxy or amino.
  • R 3 is preferably unsubstituted 2-quinolyl.
  • the compounds being administered have the general Formula II, wherein R 1 and R 2 are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring; and R 4 is N. Those compounds wherein n is zero (0); and X is C 2 -C 10 -alkyl are particularly preferred.
  • the compound of Formula I corresponds in structure to
  • A is selected from the group consisting of:
  • the compound being administered corresponds in structure to Formula III, wherein A is
  • the compound being administered corresponds in structure to Formula III, wherein n is 2, 3, 4, or 5.
  • the compound being administered corresponds in structure to Formula III, wherein A is
  • the compound being administered corresponds in structure to Formula III, wherein n is 3.
  • the compound being administered is selected from the group consisting of:
  • the compound of Formula I corresponds in structure to Formula IV:
  • n 2-7;
  • A is selected from the group consisting of:
  • the compound being administered corresponds in structure to Formula IV, wherein A is
  • the compound being administered corresponds in structure to
  • the compound being administered corresponds in structure to
  • the compound being administered corresponds in structure to
  • the compound being administered corresponds in structure to
  • the compound being administered corresponds in structure to
  • the compound being administered corresponds in structure to
  • the compound of Formula I corresponds in structure to Formula V:
  • the compound being administered corresponds in structure to Formula V, wherein A is
  • the compound being administered corresponds in structure to Formula V, wherein n is 3.
  • the compound being administered corresponds in structure to Formula V 5 wherein the compound is
  • One aspect of the present invention is the use of a compound according to one of the
  • the medicament is suitable for oral administration, and may comprise one or more pharmaceutically acceptable excipient, such as e.g. binders fillers, disintegrants, lubricants, and the like.
  • excipients are well known to those skilled in the art.
  • alkyl (alone or in combination with another term(s)) means a straight- or branch-chain saturated hydrocarbyl substituent.
  • alkenyl (alone or in combination with another term(s)) means a straight- or branch-chain hydrocarbyl substituent containing one or more double bonds. Examples of such substituents include 1-propenyl and 2-butenyl).
  • alkynyl (alone or in combination with another term(s)) means a straight- or branch-chain hydrocarbyl substituent containing one or more triple bonds.
  • An example of such substituents is 2-butynyl.
  • aryl (alone or in combination with another term(s)) means a monocyclic aromatic hydrocarbyl containing between 5 and 12 carbon atoms, optionally interrupted by one or more heteroatoms independently selected from N 5 O, and S.
  • aralkyl also known as “arylalkyl” means an alkyl (as defined above) substituted with an aryl. Examples of such substituents include benzyl and phenylethyl.
  • the compounds of Formula I can be used in the methods of this invention in the form of structural and/or stereoisomers.
  • Structural isomers of the compounds of Formula I can include chain isomers ⁇ e.g., butyl and isobutyl) and position isomers ⁇ e.g., 1-chlorobutyl and
  • Stereoisomers of the compounds of Formula I can include E and Z isomers ⁇ i.e., isomers with regard to one or more double bonds); enantiomers ⁇ i.e., stereoisomers that have opposite configurations at all stereogenic centers); and diastereoisomers ⁇ i.e., stereoisomers that have the same configuration at one or more stereogenic centers, but differ at other stereogenic centers).
  • the compounds of Formula I can be used in the methods of this invention as mixtures of enantiomers, diastereomers, and/or isomers with regard to double bounds (including racemic mixtures), as well as as substantially optically pure and optically pure stereoisomers of the compounds of Formula I.
  • Optically pure isomers may be prepared using chiral synthons or chiral reagents. Alternatively, optically pure isomers can be resolved using conventional techniques.
  • the compounds of Formula I can be used in the methods of this invention in the form of salts (including solvates and hydrates) of the compounds of Formula I (including their isomers).
  • a salt of the compound may be advantageous due to one or more of the salt's physical properties, such as enhanced pharmaceutical stability in differing temperatures and humidities, or a desirable solubility in water or oil.
  • the salts are preferably pharmaceutically acceptable and/or physiologically compatible.
  • Pharmaceutically acceptable salts include salts commonly used to form alkali metal salts and to form addition salts of free acids or free bases.
  • these salts typically may be prepared by conventional means with a compound of this invention by reacting, for example, the appropriate acid or base with the compound.
  • the final products have been structurally characterized by techniques of IR, NMR and quantitative elemental analysis. For easier handling, when the final product is not crystalline, it is transformed in a pharmaceutically acceptable salt, derived from an inorganic or organic acid.
  • 5-HT 3 , 5-HT 4 , 5-HT 7 , ⁇ j and D 2 cerebral receptors have been evaluated by radioligand displacement tests.
  • the following specific ligands and tissues have been used:
  • D 2 receptors [ 3 H] spiperone, rat striatum.
  • the functional character (agonist/antagonist) of the compounds of the present invention has been studied in vitro by determining the inhibition of the stimulating effect of forskolin on adenylate cyclase in a cell line transfected with the 5-HT 1A receptor, occasionally comparing the effect obtained with the [ 35 S]GTPyS fixation test to coronal sections of rat brain as well as the hyperpolarizing effect in the hippocampal area CAl, and further studying, in vivo, the 5-HTI A agonist character of the new compounds by analysis of the typical behavioural effects as well as of the hypothermia, and evaluating the prevention of these effects by the selective antagonist WAY-100635.
  • the neuroprotective activity of the compounds disclosed in the present invention has been studied, considering their capacity to prevent cell death, of a necrotic or apoptotic nature, in primary neuronal cultures and studying in vivo the prevention of neuronal death in the hippocampal area CAl of gerbils after transient global ischemia as well as the reduction in volume of cerebral infarction after permanent occlusion in the middle cerebral artery in rats.
  • Example 29 2-[4-[(Chroman-2(S)-yl)methylamino]butyl]-l ,3- dioxoperhydro ⁇ yrrolo[l,2-c]imidazole, (diastereoisomers) (h).
  • Example 30 2-[8-[(Chroman-2-yl)methylamino]octyl]-l 5 3- dioxoperhydropyrrolo[l ,2-c]imidazole 5 (i).
  • Example 32 2-[4-[2-(o-Methoxyphenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolofl ,2-c] imidazole (m).
  • Example 33 2-[4-[2-(m-Methoxyphenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c] imidazole, (n).
  • Example 34 2-[4-[2-(o-Bromophenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c]imidazole, (o).
  • Example 35 2-[4-[2-(m-Bromophenoxy)emylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c]imidazole, (p).
  • Example 36 2-[4-[2-(o-Emylphenoxy)emylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c] imidazole, (q).
  • Example 37 2-[4-[2-(m-Ethylphenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c]imidazole 5 (r).
  • Example 39 2-[4-[(2-Quinolyl)methylamino]butyl]-l,3-dioxoperhydropyrrolo[l,2- c] imidazole, (t).
  • IR CCHCk cm '1 1770, 1708 (CONCON), 1601, 1504, 1442, 1416 (Ar).
  • Example 40 2-[4-[2-(o-Ethoxyphenoxy)ethylamino]butyl]-l ,3- dioxoperhydropyrrolo[l,2-c]imidazole, (u).
  • Example 41 2-[4-[2-(o-Isopropoxyphenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l,2-c]imidazole, (v).
  • Example 42 2-[4-[2-[m-(Trifluoromethyl)phenoxy]ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l, 2-c] imidazole, (w).
  • Example 45 2-[4-[2-[m-(Acetylamino)phenoxy]ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l, 2-c] imidazole, (z).
  • Example 47 2-[4-[2-(5, 6, 7, 8-Tetrahydronaphth-l-yloxy)ethylamino]butyl]-l, 3- dioxoperhydropyrrolofl, 2 -cj imidazole, (bb).
  • Example 48 2-[4-[2-(2, 3-Dimethylphenoxy)ethylamino]butyl]-l, 3- dioxoperhydropyrrolo[l, 2-cJ imidazole, (cc).
  • Example 49 2-[4-[(Chroman-2-yl)methylamino]butyl]-l,4-dioxo ⁇ erhydropyrido[l 5 2- ajpyrazine, (dd).
  • Example 54 2-[4-[2-(o-Ethoxyphenoxy)ethylamino]butyl]-l,3- dioxoperhydroimidazo[l,5-a]pyridine, (ii).
  • Example 54 2-[6-[2-(o-Ethoxyphenoxy)ethylamino]hexyl]-l,3- dioxoperhydwimidazofl, 5-aJpyridine, (jj).
  • Example 56 2-[6-[(2 : Quinolyl)methylamino]hexyl]-l, 3-dioxoperhydroimidazo[l, 5- a] pyridine (U).
  • the functional character of the new compounds was initially determined by studying their effect on adenylate cyclase in He-La cells transfected with the 5-human HT 1A receptor, measuring their inhibiting effect on the stimulation of the enzyme induced by forskolin (Table 3 below).
  • the compounds included in this table behaved in all cases as pure agonists, so as to reach values close to 100% of inhibition of the activation induced by forskolin.
  • the 50 effective concentration (CE 50 ) a concentration that produces 50% of the inhibition of the increase in enzymatic activity by forskolin, was in the nanomolar range.
  • the action of the new compounds in this test was mediated in by the 5-HT 1A receptor as can be deduced from the blocking of the effect of all compounds studied by the selective 5-HT 1A antagonist WAY-100635 (10 "8 M).

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Abstract

The present invention relates to the prevention and/or, treatment of pain and/or migraine in a subject in need of such prevention and/or treatment. These invention comprises administering to the subject a diaza- and thiaza- cycloalkanedione compound, an isomer of the compound, or a hydrate, solvate, or salt of the compound or isomer.

Description

METHODS FOR PREVENTING AND/OR TREATING PAIN AND/OR MIGRAINE
FIELD OF THE INVENTION
[0001] The present invention relates to methods for preventing and/or treating pain and/or migraine in a subject in need of such prevention and/or treatment. These methods comprise administering to the subject a diaza- and thiaza- cycloalkanedione compound, an isomer of the compound, or a hydrate, solvate, or salt of the compound or isomer.
SUMMARY OF THE INVENTION
[0002] The present invention is directed to a method for preventing and/or treating a condition selected from the group consisting of pain and migraine in a subject in need of such prevention and/or treatment. The method comprises administering to the subject a compound corresponding in structure to Formula I, a stereochemical isomer of the compound, or a hydrate, solvate, or pharmaceutically acceptable salt of the compound or isomer:
Figure imgf000002_0001
Generally, R1, R2, R3, R4, R5, Z, m, and n are defined as follows: [0003] R1 is H, -(CH2)S-, -(CH2)4-, -CH2-S-CH2-, or -S-CH2-CH2-. [0004] R2 is N or S.
[0005] R3 is H, Cj-Qo-alkyl, aryl, or arylalkyl. [0006] R4 is -O- or -CH2-. [0007] R5 is
Figure imgf000002_0002
Figure imgf000003_0002
Figure imgf000003_0003
Figure imgf000003_0001
Figure imgf000003_0004
[0008] Z is C2-Cio-alkylene, C2-C1o-alkenylene, or C2-C10-alkynylene.
[0009] n is zero or 1.
[0010] m is zero, 1, or 2.
[0011] Each R6 is independently H, Ci-Cs-alkyl. Ci-Cs-alkoxy, OH, F5 Cl5 Br5 or I.
[0012] X is -O-, -S-, -N(H)-, or -N(CH3)-.
[0013] Y is -O- and -N(H)-.
[0014] W is -S- or -N(H)-.
[0015] Further benefits of Applicant's invention will be apparent to one skilled in the art from reading this patent application. DETAILED DESCRIPTION
[0016] This detailed description is intended to acquaint others skilled in the art with applicants' invention, its principles, and its practical application so that others skilled in the art may adapt and apply the invention in its numerous forms, as they may be best suited to the requirements of a particular use. This detailed description and its specific examples, while indicating embodiments of the present invention, are intended for purposes of illustration only. The present invention, therefore, is not limited to the embodiments described in this patent application, and may be variously modified.
[0017] In accordance with the present invention, applicants have found that certain diaza- and thiaza- cycloalkanedione compounds (including isomers of the compounds as well as salts, solvates, and hydrates of the compounds and isomers) tend to be useful to prevent and/or treat pain and/or migraine. In one aspect, Applicant has found that the compounds of the present disclosure reduce the so called "late phase" pain reaction in the formalin animal pain model, which is believed to be indicative of the alleviation of chronic pain symptoms, such as e.g. chronic inflammatory pain and chronic neuropathic pain syndromes.
[0018] Thus, the present invention is directed to a method for preventing and/or treating a condition selected from the group consisting of pain and migraine in a subject in need of such prevention and/or treatment. The method comprises administering to the subject a compound corresponding in structure to Formula I5 a stereochemical isomer of the compound, or a hydrate, solvate, or pharmaceutically acceptable salt of the compound or isomer:
Figure imgf000004_0001
Generally, Ri, R2, R3, R4, R5, Z, m, and n are defined as follows:
[0019] R1 is selected from the group consisting of H, -(CH2)3-, -(CH2)4-, -CH2-S-CH2-, and
-S-CH2-CH2-.
[0020] R2 is selected from the group consisting of N and S.
[0021] n is zero or 1. [0022] Z is selected from the group consisting of C2-C1 o-alkylene, C2-C1o-alkenylene, and
C2-Cio-alkinylene.
[0023] R.3 is selected from the group consisting of H, Q-Qo-alkyl, aryl, and arylalkyl.
[0024] m is zero, 1, or 2.
[0025] R4 is selected from the group consisting of -O- and -CH2-.
[0026] R5 is selected from the group consisting of
Figure imgf000005_0002
Figure imgf000005_0001
Figure imgf000005_0003
Figure imgf000006_0001
[0027] Each R6 is independently selected from the group consisting of H, CrCs-alkyl,
Ci-C5-aJkoxy, OH, F, Cl, Br, and I.
[0028] X is selected from the group consisting of -O-, -S-, -N(H)-, and -N(CH3)-.
[0029] Y is selected from the group consisting of -O- and -N(H)-.
[0030] W is selected from the group consisting of -S- and -N(H)-.
[0031] In some embodiments, the subject is a human.
[0032] In some embodiments, the condition being prevented and/or treated comprises pain.
[0033] In some embodiments, the pain being prevented and/or treated comprises chronic pain, particularly chronic inflammatory pain and/or chronic neuropathic pain.
[0034] In some embodiments, the condition being prevented and/or treated comprises migraine.
[0035] In some embodiments, a therapeutically effective (or an effective amount) is administered to the subject.
[0036] In some embodiments, the compound being administered corresponds in structure to
Formula I, wherein Z is C2-C10-alkylene, and R5 is selected from the group consisting of:
Figure imgf000006_0002
[0037] In some embodiments, the compound being administered corresponds in structure to Formula I, wherein Z is butylene, and R5 is selected from the group consisting of
Figure imgf000006_0003
[0038] In some embodiments, the compound being administered corresponds in structure to Formula I, wherein R3 is H. [0039] In some embodiments, the compound being administered is selected from the group consisting of:
2- [4- [(Chroman-2-yl)methylamine]butyl] - 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole;
2-[4-[(Chroman-2-yl)methylamine]butyl]- 1 ,3-dioxoperhydroimidazo[l ,5-b]thiazole;
2-[4-[(Chroman-2-yl)methylamine]butyl]-l,3-dioxoperhydroimidazo[l,5-c]-thiazole;
3-[4-[(Chroman-2-yl)methylamine]butyl]-2,4-dioxothiazolidin;
3-[5-[(Chroman-2-yl)methylamine]pentyl]-2,4-dioxothiazolidin;
3 - [6- [(Chroman-2-yl)methylamine]hexyl] -2,4-dioxothiazolidin;
2-[4-[(Naphth- 1 -yl)methylamine]butyl]- 1 ,3-dioxoperhydropyrrolo[ 1 ,2-c]imidazole;
2- [4- [(Naphth-2-yl)methylamine]butyl] -1,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole;
2-[4-[2-(Naphth-l-yl)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
3-[4-[2-(Naphth-l-yl)ethylamine]butyl]-2,4-dioxothiazolidin;
2-[4-[2-(Naphth-2-yl)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
2-[4-[2-(Phenoxy)ethylamine]butyl]-l,3-dioxoperhydroρyrrolo[l,2-c]imidazole;
3-[4-[2-(Phenoxy)ethylamine]butyl]-254-dioxothiazolidin;
2-[4-[2-(Naphth-l-oxy)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
3-[4-[2-(Naphth-l-oxy)ethylamine]butyl]-2,4-dioxothiazolidin;
2- [4- [(Benzimidazol-2-yl)methy laminejbutyl] -1,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole;
2-[4-[(o-Methoxyphenyl)methylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
2-[4-[2-(o-Methoxyphenyl)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
2- [4- [3 -(o-Methoxyphenyl)propy lamine]butyl] -1,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole;
2-[4-[4-(o-Methoxyphenyl)butylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole; and
2- [3 - [3 -(o-Methoxyphenyl)propylamine]propyl] - 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole.
[0040] In some embodiments, the compound being administered corresponds in structure to Formula I wherein m is zero; R4 is CH2; and R5 is chromanyl.
[0041] In some embodiments, the compound being administered corresponds in structure to Formula I wherein m is 2; R4 is O; and R5 is phenyl or 1-naphthyl. [0042] In another aspect of the present invention the compounds being administered correspond in structure to Formula II:
Figure imgf000008_0001
their stereochemical^ isomer forms, hydrates, solvates and pharmaceutically acceptable salts thereof, wherein:
[0043] R1 and R2 are H or are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring;
Figure imgf000008_0002
then R1 is H and R2 is absent;
[0044] R4 is selected from the group consisting of N and S;
[0045] n being an integer from 0 to 1 ;
[0046] X is selected from the group consisting of C2-C1o-alkyl, C2-C10-alkenyl and -CH2-Y-
CH2-; wherein Y is phenyl;
[0047] m being an integer from 1 to 2;
[0048] R3 is selected from the group consisting of chroman-2-yl, 2-quinolyl and -O-phenyl, wherein the aromatic ring of the chromanyl moiety, the quinolyl or the phenyl residue is optionally substituted by one or more groups chosen from Q-Cό-alkoxy, CrC6-alkyl, halogen,
C2-C6-alkenyl, halo-(CrC6)-alkyl, halo-(C1-C6)-alkoxy, phenyl, phenyl(Ci-C6)-alkyl, phenoxy,
Ci-C6-alkylcarbonyl, phenylcarbonyl, phenyl(C1-C6)alkylcarbonyl, Q-Cδ-alkoxycarbonyl, phenyl(Ci-C6)alkoxycarbonyl, d-Q-alkylcarbonylamino, hydroxy, cyano, nitro, amino, N-(C1-
C6)-alkylamino, N3N-(C 1-C6)-dialkylamino, carboxy, sulfo, sulfamoyl, sulfonylamino, (Q-
C6)alkylaminosulfonyl or (Ci-C6)alkylsulfonylamino; or wherein the phenyl ring is substituted by two neighbouring residues, which together with the phenyl ring to which they are attached form tetrahydronaphthyl; wherein each alkyl is optionally substituted with hydroxy or amino.
[0049] In one embodiment the compounds being administered have the general Formula II, wherein R3 is preferably selected from the group consisting of chroman-2-yl, 2-quinolyl and -O- phenyl, wherein the phenyl residue is optionally substituted by a group chosen from C1-C6- alkoxy, CrCό-alkyl, or halogen. [0050] According to certain aspects of the present disclosure, the compounds being administered have the general Formula H5 wherein
[0051] m is 1 and R3 is optionally substituted chroman-2-yl;
[0052] m is 2 and R3 is optionally substituted O-phenyl; or
[0053] m is 1 and R3 is optionally substituted 2-quinolyl.
[0054] According to one aspect of the present invention, the compounds being administered have the general Formula II, wherein m is 1 and R3 is chroman-2-yl, the phenyl ring of which is unsubstituted or substituted by one or more groups chosen from Ci-C6-alkoxy, Ci-Cβ-alkyl, halogen, C2-C6-alkenyl, halo-(C1-C6)-alkyl, halo-(C1-C6)-alkoxy, phenyl, phenyl(CrC6)-alkyl, phenoxy, Ct-Cδ-alkylcarbonyl, phenylcarbonyl, pheny^Ci-C^alkylcarbonyl, C1-C6- alkoxycarbonyl, pheny^Q-C^alkoxycarbonyl, Ci-Cδ-alkylcarbonylarnino, hydroxy, cyano, nitro, amino, N-(C1-C6)-alkylamino, N5N-(C1 -C6)-dialkylamino, carboxy, sulfo, sulfamoyl, sulfonylamino, (C1-C6)alkylaminosulfonylor (Ci-C6)alkylsulfonylamino; wherein each alkyl is optionally substituted with hydroxy or amino. R3 is preferably unsubstituted chroman-2-yl.
[0055] Unless specifically mentioned otherwise the term "chroman-2-yl" refers to an unsubstituted chroman-2-yl residue.
[0056] According to one embodiment of the present disclosure, the compounds being administered have the general Formula II, wherein R1 and R2 are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring and R4 is N. Those compounds being administered wherein m is 1 and R3 is chroman-2-yl, Ri and R2 are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring; R4 is N; and
X is selected from the group consisting of C2-C1o-alkyl, (.E)-2-butenyl, 3-methylbenzyl or 4- methylbenzyl are preferred.
[0057] In another embodiment the compounds being administered have the general Formula
II, wherein Ri is H; R2 is absent; R4 is S; m is 1; R3 is chroman-2-yl; and X is selected from the group consisting of C2-C1 o-alkyl, C2-CiO-alkenyl, or -CH2-Y-CH2-, wherein Y is phenyl. In one embodiment n is preferably 0.
[0058] In a more specific embodiment of the present invention, it provides compounds being administered which have the general Formula II, wherein Ri is H; R2 is absent; R4 is S; m is 1;
R3 is chroman-2-yl; and X is C2-C1o~alkyl. In one embodiment n is preferably zero (0). [0059] Another embodiment of the invention relates to compounds being administered which have the general Formula II, wherein m is 2 and R3 is -O-phenyl optionally substituted by one or more groups chosen from CrC6-alkoxy, Q-Q-alkyl, halogen, C2-C6-alkenyl, halo-(C1-C6)-alkyl, halo-(Ci-C6)-alkoxy, phenyl, phenyl(Ci-C6)-alkyl, phenoxy, d-Cό-alkylcarbonyl, phenylcarbonyl, phenyl(C1-C6)alkylcarbonyl, Cj-C6-alkoxycarbonyl, phenyl(Ci- C6)alkoxycarbonyl, Ci-Cό-alkylcarbonylamino, hydroxy, cyano, nitro, amino, N-(C1-C6)- alkylamino, N,N-(C1-C6)-dialkylamino, carboxy, sulfo, sulfamoyl, sulfonylamino, (C1- C6)alkylaminosulfonyl or (Ct-C^alkylsulfonylamino; or wherein the phenyl ring is substituted by two neighbouring residues, which together with the phenyl ring to which they are attached form tetrahydronaphthyl; wherein each alkyl is optionally substituted with hydroxy or amino. [0060] According to a specific embodiment of the invention, the compounds being administered have the general Formula II, wherein: m=2 and R3 is -O-phenyl, wherein the phenyl ring is substituted by one or more groups chosen from phenyl, CrCβ-alkoxycarbonyl, C1- C6-alkylcarbonylamino, CrCό-alkoxy, Ci-Cβ-alkyl, halo-(C1-C6)-alkyl, or halogen or wherein the phenyl group is substituted by two neighbouring residues, which together with the phenyl group to which they are attached form tetrahydronaphthyl.
[0061] Another embodiment relates to compounds being administered having the general Formula II, wherein m=2 and R3 is -O-phenyl, wherein the phenyl ring is substituted by one or more groups chosen from Q-Q-alkoxy, Q-Ce-alkyl, or halogen.
[0062] Exemplary compounds of Formula II being administered are those wherein the phenyl residue is optionally substituted by one or more groups chosen from methoxy, ethoxy, propoxy, isopropoxy, ethyl, propyl, isopropyl, bromide, trifluoromethyl, methylamide or ethoxycarbonyl.
[0063] Particularly preferred compounds being administered are those compounds wherein the phenyl residue is substituted in ortho and/or meta position, particularly in ortho position. [0064] According to one embodiment of this disclosure, the compounds being administered have the general Formula II, wherein R1 and R2 are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring; and R4 is N.
[0065] One aspect relates to compounds being administered that have the general Formula II, wherein R1 and R2 are methylene groups bound together forming with the heterocyclic ring a 5- membered ring; R4 is N; n is 0; X is C2-C10-alkyl; m is 2; R3 is -O-phenyl optionally substituted by one or more groups chosen from phenyl, Ci-Cβ-alkoxycarbonyl, Ct-Cό-alkylcarbonylamino,
CrCβ-alkoxy, Ci-C6-alkyl, halo-(C1-C6)-alkyl, or halogen or wherein the phenyl group is substituted by two neighbouring residues, which together with the phenyl group to which they are attached form tetrahydronaphthyl.
[0066] In a more specific embodiment, the compounds being administered have the general
Formula II, wherein R3 is O-phenyl substituted by a group chosen from Q-Cβ-alkoxy, C1-C6- alkyl, or halogen.
[0067] In another embodiment, in the compounds of Formula II being administered, R1 is H,
R2 is absent and R4 is S. Particularly those wherein X is C2-C1o-alkyl and n is 0.
[0068] According to another embodiment of the present disclosure, the compounds being administered have the general Formula II, wherein m is 1 and R3 is 2-quinolyl, the aromatic ring of which is unsubstituted or substituted by one or more groups chosen from d-C6-alkoxy, C1-
C6-alkyl, halogen, C2-C6-alkenyl, halo-(C1-C6)-alkyl, halo-(C1-C6)-alkoxy, phenyl, phenyl(d-
C6)-alkyl, phenoxy, Cj-Cβ-alkylcarbonyl, phenylcarbonyl, phenyl(C1-C6)alkylcarbonyl, C1-C6- alkoxycarbonyl, phenyl^ -C6)alkoxycarbonyl, d-Cδ-alkylcarbonylamino, hydroxy, cyano, nitro, amino, N-(C1-C6)-alkylamino,
Figure imgf000011_0001
carboxy, sulfo, sulfamoyl, sulfonylamino, (C]-C6)alkylaminosulfonyl or (C1-C6)alkylsulfonylamino; wherein each alkyl is optionally substituted with hydroxy or amino. R3 is preferably unsubstituted 2-quinolyl.
[0069] Unless specifically mentioned otherwise the term "2-quinolyl" refers to an unsubstituted quinolyl residue.
[0070] In one embodiment, the compounds being administered have the general Formula II, wherein R1 and R2 are methylene groups bound together forming with the heterocyclic ring a 5- or 6- membered ring; and R4 is N. Those compounds wherein n is zero (0); and X is C2-C10-alkyl are particularly preferred.
[0071] In some embodiments, the compound of Formula I corresponds in structure to
Formula III:
Figure imgf000011_0002
Formula III wherein n is 2-7; and
A is selected from the group consisting of:
Figure imgf000012_0001
[0072] In some embodiments, the compound being administered corresponds in structure to Formula III, wherein A is
Figure imgf000012_0002
[0073] In some embodiments, the compound being administered corresponds in structure to Formula III, wherein n is 2, 3, 4, or 5.
[0074] In some embodiments, the compound being administered corresponds in structure to Formula III, wherein A is
Figure imgf000012_0003
[0075] In some embodiments, the compound being administered corresponds in structure to Formula III, wherein n is 3.
[0076] In some embodiments, the compound being administered, corresponding in structure to Formula III, is selected from the group consisting of:
(±)-2-[4-[(Chroman-2-yl)methylamino]butyl]-l,3-dioxoperhydropyrrolo[l32-c]imidazole;
(+)-2-[4-[(Chroman-2-yl)methylamino]butyl]-l,3-dioxoperhydroimidazo[l,5-ό]thiazole;
(+)-2-[4-[(Chroman-2-yl)methylamino]butyl]-l,3-dioxoperhydroimidazo[l,5-c]-thiazole;
(±)-3 - [4- [(Chroman-2-yl)methylamino]butyl] -2,4-dioxothiazolidine; (±)-3 - [5- [(Chroman-2-yl)methylamino]pentyl] -2,4-dioxothiazolidine;
(±)-3 - [6- [(Chroman-2-yl)methylamino]hexyl] -2,4-dioxothiazolidine;
2-[4-[(Chroman-2(i?)-yl)niethylamino]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
2- [5 - [(Chroman-2-yl)methylamino]pentyl] - 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole;
2-[6-[(Chroman-2-yl)methylamino]hexyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
2- [3 - [(Chroman-2-yl)methylamino]propyl] - 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole; and
2-[4-[(Chroman-2(.S)-yl)methylamino]butyl]- 1 ,3 -dioxoperhydropyrrolo [1 ,2-c]imidazole. [0077] In some embodiments, the compound of Formula I corresponds in structure to Formula IV:
Figure imgf000013_0001
Formula IV
wherein n is 2-7; and
A is selected from the group consisting of:
Figure imgf000013_0002
[0078] In some embodiments, the compound being administered corresponds in structure to Formula IV, wherein A is
[0079] In some embodiments, the compound being administered corresponds in structure to
Formula IV, wherein n is 3 or 7.
[0080] In some embodiments, the compound being administered corresponds in structure to
Formula IV, wherein R6 is CrGj-alkoxy in ortho position of the phenyl ring.
[0081] In some embodiments, the compound being administered corresponds in structure to
Formula IV, wherein A is
Figure imgf000014_0002
[0082] In some embodiments, the compound being administered corresponds in structure to
Formula IV, wherein n is 3.
[0083] In some embodiments, the compound being administered corresponds in structure to
Formula IV, wherein R6 is C]-C4-alkoxy in ortho position of the phenyl ring.
[0084] In some embodiments, the compound being administered corresponds in structure to
Formula IV, wherein the compound is selected from the group consisting of:
2-[4-[2-(Phenoxy)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
3 - [4- [2-(Phenoxy)ethylamine]butyl] -2,4-dioxothiazolidin;
2- [4- [2-(ø~Methoxyphenoxy)ethylamino]butyl] -1,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole;
2-[4-[2-(σ-Ethoxyphenoxy)ethylamino]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
2-[4-[2-(c-Isopropoxyphenoxy)ethylamino]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]
3-[4-[2-((?-Ethoxyphenoxy)ethylamino]butyl]-2,4-dioxothiazolidine;
3-[6-[2-(o-Ethoxyphenoxy)ethylamino]hexyl]-2,4-dioxothiazolidine;
3-[8-[2-(o-Ethoxyphenoxy)ethylamino]octyl]-2,4-dioxothiazolidine;
2-[4-[2-(σ-Ethoxyphenoxy)ethylamino]butyl]-l,3-dioxoρerhydroimidazo[l,5-α]pyridine; and 2-[6-[2-(o-Ethoxyphenoxy)ethylamino]hexyl]-l?3-dioxoperhydroimidazo[l,5-α]pyridine. [0085] In some embodiments, the compound of Formula I corresponds in structure to Formula V:
Figure imgf000015_0001
Formula V wherein n is 2-7; and A is selected from the group consisting of:
Figure imgf000015_0002
[0086] In some embodiments, the compound being administered corresponds in structure to Formula V, wherein A is
Figure imgf000015_0003
[0087] In some embodiments, the compound being administered corresponds in structure to Formula V, wherein n is 3.
[0088] In some embodiments, the compound being administered corresponds in structure to Formula V5 wherein the compound is
2-[4-[2-(Naphth-l -oxy)ethylamine]butyl]- 1 ,3-dioxoperhydropyrrolo[l ,2-c]imidazole or
3-[4-[2-(Naphth-l-oxy)ethylamine]butyl]-2,4-dioxothiazolidin. [0089] One aspect of the present invention is the use of a compound according to one of the
Formula I, II, III, IV or V or a specific compound as described herein in the production of a medicament for the treatment of pain and/or migraine, more specifically chronic pain such as, e.g. chronic inflammatory or chronic neuropathic pain. Preferably, the medicament is suitable for oral administration, and may comprise one or more pharmaceutically acceptable excipient, such as e.g. binders fillers, disintegrants, lubricants, and the like. Such excipients are well known to those skilled in the art.
[0090] Unless otherwise indicated, the term "alkyl" (alone or in combination with another term(s)) means a straight- or branch-chain saturated hydrocarbyl substituent.
[0091] Unless otherwise indicated, the term "alkenyl" (alone or in combination with another term(s)) means a straight- or branch-chain hydrocarbyl substituent containing one or more double bonds. Examples of such substituents include 1-propenyl and 2-butenyl).
[0092] Unless otherwise indicated, the term "alkynyl" (alone or in combination with another term(s)) means a straight- or branch-chain hydrocarbyl substituent containing one or more triple bonds. An example of such substituents is 2-butynyl.
[0093] The term "aryl" (alone or in combination with another term(s)) means a monocyclic aromatic hydrocarbyl containing between 5 and 12 carbon atoms, optionally interrupted by one or more heteroatoms independently selected from N5 O, and S.
[0094] The term "aralkyl" (also known as "arylalkyl") means an alkyl (as defined above) substituted with an aryl. Examples of such substituents include benzyl and phenylethyl.
[0095] The compounds of Formula I can be used in the methods of this invention in the form of structural and/or stereoisomers. Structural isomers of the compounds of Formula I can include chain isomers {e.g., butyl and isobutyl) and position isomers {e.g., 1-chlorobutyl and
2-chlorobutyl; Δ -butylene and Δ2-butylene; o-methyl phenoxy and m-methyl phenoxy).
Stereoisomers of the compounds of Formula I can include E and Z isomers {i.e., isomers with regard to one or more double bonds); enantiomers {i.e., stereoisomers that have opposite configurations at all stereogenic centers); and diastereoisomers {i.e., stereoisomers that have the same configuration at one or more stereogenic centers, but differ at other stereogenic centers).
Thus, the compounds of Formula I can be used in the methods of this invention as mixtures of enantiomers, diastereomers, and/or isomers with regard to double bounds (including racemic mixtures), as well as as substantially optically pure and optically pure stereoisomers of the compounds of Formula I. Optically pure isomers may be prepared using chiral synthons or chiral reagents. Alternatively, optically pure isomers can be resolved using conventional techniques.
[0096] The compounds of Formula I can be used in the methods of this invention in the form of salts (including solvates and hydrates) of the compounds of Formula I (including their isomers). Depending on a particular compound, a salt of the compound may be advantageous due to one or more of the salt's physical properties, such as enhanced pharmaceutical stability in differing temperatures and humidities, or a desirable solubility in water or oil.
[0097] The salts are preferably pharmaceutically acceptable and/or physiologically compatible. Pharmaceutically acceptable salts include salts commonly used to form alkali metal salts and to form addition salts of free acids or free bases. In general, these salts typically may be prepared by conventional means with a compound of this invention by reacting, for example, the appropriate acid or base with the compound.
[0098] Examples of suitable salts with hydrochloric acid, hydrobromic acid, sulphuric acid, phosphoric acid, methane sulphonic acid, ethane sulphonic acid, o-toluene sulphonic acid, m-toluene sulphonic acid, p-toluene sulphonic acid, benzene sulphonic acid, o-naphthalene sulphonic acid, m-naphthalene sulphonic acid, p-naphthalene sulphonic acid, acetic acid, propionic acid, lactic acid, oxalic acid, malonic acid, succinic acid, maleic acid, fumaric acid, malic acid, tartaric acid, citric acid, and benzoic acid.
[0099] Two alternative processes are provided to prepare the compounds of general Formula
I: by reaction of intermediate halogen derivatives VI (L=Cl, Br) with suitable amines VII in acetonitrile as reaction solvent (Scheme I below), or by reaction of intermediate amines VIII with appropriate halogen derivatives IX (L=Cl, Br) in acetonitrile as reaction solvent (Scheme II below).
O Scheme I
Figure imgf000017_0001
Figure imgf000018_0001
[00100] The compounds with R3 different from H are produced by alkylation of the analogues wherein R3 is hydrogen.
[00101] The definitions of Rj, R2, n, Z, m, R4 and R5 in these schemes are identical to those made previously for the products of the invention.
[00102] The Formula VI intermediates are obtained by the reaction of hydantoin, diketopiperazine or cyclic imide with the appropriate halogen derivative in the presence of sodium hydride and N,N-dimethylformamide as a reaction solvent, as represented in Scheme III.
Figure imgf000018_0002
[00103] The Formula VIII intermediates are obtained by reaction of hydantoin, diketopiperazine or cyclic imide with the appropriate halonitrile in the presence of sodium hydride and N,N-dimethylformamide as reaction solvent, and subsequent catalytic hydrogenation, as represented in Scheme IV.
Scheme IV
Figure imgf000018_0003
[00104] Some of the intermediates VII and IX are commercial. It is also possible to obtain said intermediates following procedures disclosed in the literature or by conventional synthetic routes.
[00105] The final products have been structurally characterized by techniques of IR, NMR and quantitative elemental analysis. For easier handling, when the final product is not crystalline, it is transformed in a pharmaceutically acceptable salt, derived from an inorganic or organic acid.
[00106] The in vitro affinity of the compounds of general Formula I in the 5-HT1A, 5-HT2A,
5-HT3, 5-HT4, 5-HT7, αj and D2 cerebral receptors have been evaluated by radioligand displacement tests. The following specific ligands and tissues have been used:
(a) 5-HTIA receptors: [3H]-8-OH-DPAT, rat cerebral cortex;
(b) 5-HT2A receptors: [3H]ketanserin, rat cerebral cortex;
(c) 5-HT3 receptors: [3H]LY278584, rat cerebral cortex;
(d) 5-HT4 receptors: [3H]GRl 13808, rat striatum;
(e) 5-HT7 receptors: [3H]-5-CT, rat hypothalamus;
(f) at receptors: [3H]prazosin, rat cerebral cortex;
(g) D2 receptors: [3H] spiperone, rat striatum.
[00107] The functional character (agonist/antagonist) of the compounds of the present invention, has been studied in vitro by determining the inhibition of the stimulating effect of forskolin on adenylate cyclase in a cell line transfected with the 5-HT1A receptor, occasionally comparing the effect obtained with the [35S]GTPyS fixation test to coronal sections of rat brain as well as the hyperpolarizing effect in the hippocampal area CAl, and further studying, in vivo, the 5-HTIA agonist character of the new compounds by analysis of the typical behavioural effects as well as of the hypothermia, and evaluating the prevention of these effects by the selective antagonist WAY-100635.
[00108] Furthermore, the neuroprotective activity of the compounds disclosed in the present invention has been studied, considering their capacity to prevent cell death, of a necrotic or apoptotic nature, in primary neuronal cultures and studying in vivo the prevention of neuronal death in the hippocampal area CAl of gerbils after transient global ischemia as well as the reduction in volume of cerebral infarction after permanent occlusion in the middle cerebral artery in rats. EXAMPLES
[00109] The following examples are merely illustrative, and not limited to this disclosure in any way.
Example 1
Synthesis of the Compounds of General Formula I
[00110] General Process: To 1.5 mmol of intermediate amine III or IV dissolved in 2 mL of acetonitrile, a solution of 1.0 mmol of halogen derivative II or V in 1.5 mL of acetonitrile is added dropwise. The reaction mixture is heated to 6O0C with stirring during 6-24 hours (t.l.c). After cooling, the solvent is removed at reduced pressure, the residue is dissolved in methylene chloride (20 mL) and is washed with an aqueous solution of 20% potassium carbonate. Next, the organic phase is dried over anhydrous Na2SO4 and the solvent is removed at reduced pressure. The resulting oil is purified by silica gel column chromatography, obtaining the final product in the form of a free base. The compound is isolated in the form of a hydrochloride and purified by recrystallization. The IR and NMR spectroscopic data correspond to the free base.
(±)-2-[4-[(Chroman-2-yl)methylamine]butyl]-l ,3-dioxoperhydropyrrolo[l ,2-c] imidazol, 1 [00111] Chromatography: toluene/methanol, 9:1. Yield: 35%. IR (CHCl3, cm"1): 1772, 1709, 1581, 1489, 1443. 1H-NMR (CDCl3, δ): 1.47-1.86 (m, 5H) , 1.91-2.12 (m, 4H) , 2.16-2.34 (m, IH), 2.64-2.92 (m, 6H), 3.16-3.28 (m, IH), 3.48 (t, 1=1.1 Hz, 2H), 3.66 (dt, J=I 1.2; 7.3 Hz, IH), 4.05 (dd, J=9.1; 7.3 Hz, IH), 4.11-4.18 (m, IH), 6.81(t, J=7.6 Hz, 2H), 7.00-7.10 (m, 2H). 13C-NMR (CDCl3, δ): 24.6; 25.6; 25.8; 26.9; 27.1; 27.5; 38.7; 45.4; 49.3; 54.1; 63.2; 75.0; 116.7; 120.1; 121.9; 127.1; 129.4; 154.5; 160.8; 173.9. Analysis calculated for C21H24N2O4S. HCl: C, 57.72; H, 5.77; N, 6.41, found: C, 57.64; H5 5.96; N, 6.19.
Example 2
(-fc)-2-[4-[(Chroman-2-yl)methylamine]butyl]-l,3-dioxoperhydro imidazo[l,5-b]thiazol [00112] Chromatography: toluene/ethanol, 9.5:0.5. Yield: 43%; m.p. 149-1510C (ethyl acetate). IR (CHCl3, cm"1): 3400, 1770, 1718, 1610, 1558, 1488. 1H-NMR (CDCl3, δ.): 1.48-1.86 (m, 5H), 2.01-2.10 (m, IH), 2.59-3.18 (m, 9H), 3.53 (t, J=7.0 Hz, 2H), 3.95-4.27 (m, IH), 4.49 (dd, IH, J=12.0; 6.0 Hz), 5.08 (s, IH), 6.56-6.92 (m, 2H), 7.03-7.13 (m, 2H) 13C-NMR (CDCl3 δ): 23.9; 24.4; 25.5; 25.9; 32.7; 39.1; 48.4; 54.0; 58.3; 63.2; 74.8; 116.7; 120.0; 122.0; 127.1; 129.4; 154.6; 159.6; 171.6. Analysis calculated for Ci9H24N3O3S-HCl: C, 55.40; H, 6.36; N, 10.20, found: C, 55.38; H, 6.44; N, 9.87. Example 3
(±)-2-[4-[(Chroman-2-yl)methylamine]butyl]-l 53-dioxoperhydroimidazo[l ,5-c]-thiazol, 3 [00113] Chromatography: toluene/ethanol, 9.5:0.5. Yield: 38%; m.p. 142-1440C (ethyl acetate). IR (CHCl3, cm"1): 3400, 3500, 1770, 1716, 1582, 1540, 1508. 1H-NMR (CDCl3, δ): 1.49-1.74 (m, 5H), 1.98-2.05 (m, IH), 2.60-2.84 (m, 6H), 3.12 (dd, J=I 1.7; 5.8 Hz5 IH), 3.33 (dd, J=13.5; 8.5 Hz, IH)3 3.52 (t, J=7.0 Hz, 2H), 4.12 (d, J=9.9 Hz, IH), 4.22-4.28 (m, IH), 4.33 (dd, J=8.5; 5.8 Hz, IH), 5.01 (d, J=9.9 Hz, IH), 6.77-6.88 (m, 2H), 7.04-7.13 (m, 2H). 13C-NMR (CDCl3, δ): 23.8; 24.4; 25.6; 25.9; 32.7; 39.1; 49.2; 54.1; 58.2; 64.4; 74.2; 116.7; 120.3; 122.0; 127.1; 129.5; 154.5; 159.6; 171.9. Analysis calculated for C19H24N3O3S-HCl: C, 55.40; H, 6.36; N, 10.20, found: C, 55.02; H, 6.44; N, 9.85.
Example 4
(±)-3-[4-[(Chroman-2-yl)methylamine]butyl]-2,4-dioxothiazolidin, 4 [00114] Chromatography: toluene/ethanol, 9.5:0.5. Yield: 45%; m.p. 126-1270C (ethyl acetate). IR (CHCl3, cm"1): 3400, 1750, 1683, 1608, 1558, 1508. 1H-NMR (CDCl3, δ): 1.47-1.76 (m, 5H), 2.01-2.06 (m, IH), 2.57-3.01 (m, 6H), 3.62 (t, J=7.2 Hz, 2H), 3.92 (s, 2H), 4.10-4.25 (m, IH), 6.74-6.83 (m, 2H), 7.01-7.08 (m, 2H). 13C-NMR (CDCl3, δ): 24.2; 24.5; 25.3; 25.9; 33.7; 41.8; 54.2; 58.4; 74.3; 116.7; 120.0; 122.0; 127.1; 129.5; 154.5; 171.4; 171.8. Analysis calculated for C17H21N2O3S-HCl: C, 55.05; H, 6.25; N, 7.55, found: C, 54.98; H, 6.33; N, 7.15.
Example 5
(±)-3-[5-[(Chroman-2-yl)methylamine]pentyl]-2,4-dioxothiazolidin, 5 [00115] Chromatography: toluene/ethanol, 20:1 → 8:2. Yield: 38%; m.p. 172-174°C (chloroform/ethyl acetate). IR (CHCl3, cm"1): 1751, 1682, 1683, 1608, 1581, 1488, 1456. 1H-NMR (CDCl3, δ): 1.25-2.04 (m, 8H) , 2.67 (t, J=7.0 Hz, 2H) , 2.75-2.94 (m, 4H), 3.63 (t, J=7.3 Hz, 2H), 3.92 (s, 2H), 4.08-4.17 (m, IH), 6.78-6.85 (m, 2H)5 7.01-7.11 (m, 2H). 13C-NMR (CDCl3. δ): 24.4; 24.6; 25.7; 27.4; 29.4; 33.7; 42.0; 49.6; 54.2; 75.0; 116.7; 120.2; 122.0; 127.2; 129.5; 154.6; 171.4; 171.7. Analysis calculated for C18H24N2O3S1HCl: C5 56.17; H5 6.55; N5 7.28, found: C, 55.49; H5 6.49; N5 7.10.
Example 6 (±)-3-[6-[(Chroman-2-yl)methylamine]hexyl]-2,4-dioxothiazolidin5 6 [00116] Chromatography: toluene/ethanol, 20:1. Yield: 30%; m.p. 175-1770C (chloroform/ethyl acetate). IR (CHCl3, cm"1): 3416, 3321, 1751, 1670, 1608, 1581, 1489, 1456. 1H-NMR (CDCl3, δ): 1.25-2.01 (m, 10H) , 2.66 (t, J=7.1 Hz, 2H), 2.76-2.95 (m, 4H), 3.62 (t, J=7.3 Hz, 2H), 3.93 (s, 2H), 4.09-4.19 (m, IH)5 6.78-6.85 (m, 2H), 7.01-7.11 (m, 2H). 13C-NMR (CDCl3, δ): 24.6; 25.7; 26.6; 26.8; 27.5; 29.8; 33.7; 42.0; 49.8; 54.2; 75.1; 116.7; 120.2; 122.0; 127.2; 129.5; 154.6; 171.4; 171.7. Analysis calculated for C19H26N2O3S-HCl: C, 57.18; H, 6.82; N, 7.02, found: C, 56.78; H, 6.72; N, 6.94.
Example 7
2- [4- [(Naphth- 1 -yl)methylamine]butyl] -1,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazol, 7 [00117] Chromatography: ethyl acetate. Yield. 42%; m.p. 150-153°C (chloroform/hexane). IR (CHCl3, cm'1): 3300-3500, 1770, 1708, 1696, 1510, 1442, 1416. 1H-NMR (CDCl3, δ): 1.48-1.71 (m, 5H), 1.99-2.08 (m, 2H), 2.16-2.24 (m, IH), 2.74 (t, J=6.9 Hz, 2H), 3.16-3.24 (m, IH), 3.47 (t, J=6.9 Hz, 2H), 3.64 (dt, J=I 1.1; 7.8 Hz, IH), 4.02 (dd, J=9.3; 7.8 Hz, IH), 4.20 (s, 2H), 7.37-7.54 (m, 4H), 7.74 (d, J=7.2 Hz, IH) , 7.82-7.85 (m, IH) , 8.08 (d, J=8.4 Hz, IH). .SUp13C-NMR (CDCl3, δ): 25.9; 27.0; 27.2; 27.5; 38.8; 45.5; 49.3; 51.6; 63.3; 123.6; 125.4; 125.6; 125.9; 126.1; 127.7; 128.7; 131.8; 133.9; 136.0; 160.9; 173.9. Analysis calculated for C21H25N3O2-HCl: C, 65.02; H, 6.76; N, 10.83, found: C, 64.53; H, 6.71; N5 10.44.
Example 8
2- [4- [(Naphth-2-yl)methylamine]butyl] -1,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazol, 8 [00118] Chromatography: chloroform/methanol, 9:1. Yield: 25%; m.p. 125-127°C (ethyl acetate). IR (CHCl3, cm"1) : 3417, 1769, 1707. 1H-NMR (CDCl3, δ): 1.52-1.80, 1.92-2.23 (m, 3H) , 2.80 (t, J=7.1 Hz, 2H), 3.13-3.25 (m, IH), 3.42 (t, J=6.6 Hz, 2H), 3.56-3.74 (m, IH), 4.06-4.13 (m, 3H), 5.19 (sa, IH), 7.45-7.50 (m, 2H), 7.61 (d, J=8.8 Hz, IH), 7.78-7.92 (m, 4H) . 13C-NMR (CDCl3, δ): 25.2; 26.8; 27.3; 29.5; 37.8; 45.3; 46.2; 51.5; 63.2; 126.3; 126.4; 126.7; 127.5; 127.8; 128.6; 129.0; 130.0; 132.9; 133.0; 160.5; 173.8. Analysis calculated for C21H25N3O2-HCLH2O: C, 62.14; H3 6.95; N, 10.35. found: C, 62.54; H, 7.06; N, 9.95.
Example 9
2-[4-[2-(Naphth-l-yl)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazol, 9 [00119] Chromatography: ethyl acetate/ethanol, 1 :1. Yield: 48%; m.p. 95-97°C (ethyl acetate). IR (CHCl35 cm"1): 3400 (NHR, 1770, 1710. 1H-NMR (CDCl35 δ): 1.56-1.78 (m, 5H) , 2.00-2.28 (m, 3H)5 2.72 (t, 3=6.8 Hz5 2H), 3.02 (t, J=7.1 Hz, 2H)5 3.11-3.38 (m, 3H)5 3.48 (t, J=7.2 Hz5 2H)5 3.63-3.74 (m5 IH)5 4.01-4.10 (m, IH)5 7.37-7.54 (m, 4H)5 7.71-7.76 (m, IH)5 7.82-7.86 (m, IH), 7.08-7.13 (m, IH). 13C-NMR (CDCl5 δ): 27.9; 27.0; 27.1; 27.6; 33.4; 37.8; 45.5; 49.3; 50.4; 63.3; 123.7; 125.5; 125.9; 126.6; 127.0; 128.8; 132.0; 134.0; 136.0; 160.8; 174.0. Analysis calculated for C22H27N3O21HCLH2O: C5 62.92; H5 7.20; N5 10.01, found: C5 63.40; H5 7.09; N5 9.61.
Example 10
3-[4-[2-(Naphth-l-yl)ethylamine]butyl]-2,4-dioxothiazolidin, 10
[00120] Chromatography: ethyl acetate. Yield: 37%; m.p. 128-129°C (ethyl acetate). IR (CHCl35 cm4): 175I5 1682, 1682, 1510. 1H-NMR (CDCl3, δ): 1.52-1.63 (m5 4H)5 2.70 (t5 J=6.8 Hz, 2H)5 2.94 (s, IH), 3.03 (t, J=7.3 Hz, 2H), 3.32 (t, J=7.6 Hz, 2H) 3.62 (t, J=6.8 Hz, 2H), 3.93 (s, 2H), 7.33-7.55 (m, 4H), 7.71-7.75 (m, IH)5 7.83-7.88 (m, IH), 8.04-8.08 (m, IH). 13C-NMR (CDCl3, δ): 25.4; 26.3; 32.7; 33.8; 41.7; 48.7; 49.9; 123.7; 125.7; 125.8; 126.1; 126.8; 127.3; 128.9; 131.0; 134.0; 135.4; 171.0; 171.5. Analysts calculated for C19H22N2O2S-HCl: C, 60.82; H, 6.85; N, 7.09, found: C, 62.87; H, 6.45; N, 6.90.
Example 11
2-[4-[2-(Naphth-2-yl)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazol, 11 [00121] Chromatography: ethyl acetate/ethanol, 9:1. Yield: 25%; m.p. 130-132°C (ethyl acetate). IR (CHCl3, cm-1): 3421, 1769, 1705. 1H-NMR (CDCl3, δ): 1.59-1.89 (m, 5H), 2.03-2.27 (m, 3H), 2.98 (t, J=7.8 Hz, 2H)5 3.01-3.32 (m5 5H)5 3.47 (t5 J=6.6 Hz, 2H), 3.57-3.77 (m, IH)5 4.05 (dd, J=9.3; 7.3 Hz, IH), 6.29 (sa, IH), 7.32-7.48 (m, 3H)5 7.68-7.80 (m, 4H). 13C-NMR (CDCl3, δ): 25.4; 27.1; 27.5; 31.2; 33.1; 37.9; 45.5; 47.1; 49.1; 63.4; 125.5; 125.8; 126.2; 126.9; 127.4; 127.6; 128.6; 131.8; 133.5; 139.5; 160.7; 174.1. Analysis calculated for C22H27N3O2-HCLH2O: C, 62.92; H5 7.20; N, 10.01, found: C5 63.34; H, 7.46; N, 9.65.
Example 12
2- [4- [2-(Phenoxy)ethylamine] butyl] - 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazol, 12 [00122] Chromatography: toluene/ethanol, 9.5:0.5. Yield: 54%. m.p. 145-1470C (ethyl acetate). IR (CHCl3, cm"1): 3315, 1770, 1709, 1599, 1587, 1497. 1H-NMR (CDC3, δ): 1.47-1.77 (m, 6H), 1.98-2.29 (m, 3H), 2.70 (t, J=6.8 Hz, 2H), 2.99 (t, J=4.9 Hz, 2H), 3.23 (ddd, J=I 1.2; 7.6; 5.2 Hz, IH)5 3.49 (t, J=7.3 Hz, 2H)5 3.67 (dt, J=I 1.2; 7.6 Hz, IH)5 4.02-4.10 (m, 3H)5 6.87-6.98 (m, 3H)5 7.23-7.32 (m, 2H). 13C-NMR (CDC3, δ): 26.0; 27.1; 27.3; 27.7; 38.9; 45.7; 48.9; 49.4; 63.4; 67.3; 114.7; 121.0; 129.6; 158.3; 160.7; 174.0. Analysis calculated for Ci8H25N3O3-HCl: C, 58.77; H, 7.12; N, 11.42, found: C, 58.79; H, 7.04; N, 11.16.
Example 13
3-[4-[2-(Phenoxy)ethylamine]butyl]-2,4-dioxothiazolidin, 13
[00123] Chromatography: ethyl acetate.fwdarw.ethyl acetate/ethanol, 9:1. Yield: 37%; m.p. 173-1740C. (ethyl acetate). IR (CHCl3, cm"1): 3413, 3327, 1751, 1685, 1599, 1587, 1497. 1H-NMR (CDCl3, δ): 1.48-1.72 (m, 4H), 2.70 (t, J=7.1 Hz, 2H), 2.99 (t, J=7.9 Hz, 2H), 3.65 (t, J=7.1 Hz, 2H), 3.93 (s, 2H), 4.06 (t, J=5.1 Hz, 2H), 6.88-6.98 (m, 3H), 7.23-7.32 (m, 2H). 13C-NMR (CDC3, δ): 25.4; 27.1; 33.7; 41.8; 48.8; 49.1; 67.1; 114.5; 120.8; 129.4; 158.8; 171.4; 171.5. Analysis calculated for C15H20N2O3S-HCl: C, 52.17; H, 6.14; N, 8.12, found: C, 51.77; H, 6.04; N, 8.10.
Example 14
2-[4-[2-(Naphth-l -oxy)ethylamine]butyl]-l ,3-dioxoperhydropyrrolo[ 1 ,2-c]imidazol, 14 [00124] Chromatography: ethyl acetate → ethyl acetate/ethanol, 9:1. Yield: 43%; m.p. 163-1640C (ethyl acetate). IR (CHCl3, cm"1): 3354, 1771, 1707, 1582, 1508. 1H-NMR (CDCl3, δ): 1.58-1.77 (m, 5H), 1.93-2.30 (m, 3H), 2.86 (t, J=7.1 Hz, 2H), 3.15-3.27 (m, 3H), 3.49 (t, J=6.8 Hz, 2H), 3.60-3.73 (m, IH), 4.05 (dd, J=9.0; 7.3 Hz, IH), 4.30 (t, J=4.9 Hz, 2H), 6.80 (dd, J=8.5; 1.2 Hz, IH), 7.31-7.53 (m, 4H), 7.75-7.83 (m, IH), 8.22-8.28 (m, IH). 13C-NMR (CDCl3, δ): 25.7; 26.3; 27.0; 27.5; 38.5; 45.5; 48.3; 48.8; 63.3; 66.7; 104.9; 120.6; 121.9; 125.3; 125.8; 126.4; 127.5; 125.5; 134.5; 154.3; 160.8; 174.0. Analysis calculated for C22H27N3O3-HCLH2O: C, 60.61; H, 6.94; N, 9.64, found: C, 61.00; H, 6.57; N, 9.46.
Example 15
3-[4-[2-(Naphth-l -oxy)ethylamine]butyl]-2,4-dioxothiazolidin, 15 [00125] Chromatography: ethyl acetate → ethyl acetate/ethanol, 9:1. Yield: 46%; m.p. 149-151°C (ethyl acetate). IR (CHCl3, cm"1): 3332, 1684, 1582, 1508. 1H-NMR (CDCl3, δ): 1.58-1.70 (m, 4H), 2.81 (t, J=6.8 Hz, 2H), 3.17 (t, J=5.4 Hz, 2H), 3.65 (t, J=6.8 Hz, 2H), 3.92 (s, 2H), 4.27 (t, J=5.1 Hz5 2H)5 6.81 (dd, J=7.1; 1.5 Hz5 IH), 7.30-7.56 (m, 4H)5 7.75-7.83 (m, IH)5 8.22-8.38 (m, IH). 13C-NMR (CDCl3, δ): 25.3; 26.7; 33.7; 41.7; 48.5; 48.9; 67.1; 104.9; 120.5; 121.9; 125.2; 125.8; 126.4; 127.5; 125.6; 134.5; 154.4; 171.4; 171.5. Analysis calculated for C19H22N2O3S1HCl: C, 57.79; H, 5.87; N5 7.09, found: C5 57.75; H5 5.79; N, 6.59.
Example 16
2-[4-[(Benzimidazol-2-yl)methylamine]butyl]-l,3-dioxoperhydropyrrolo[l52-c ]imidazol, 16 [00126] Chromatography: toluene/ethanol, 9.5:0.5. Yield: 50%; m.p. 208-210°C (ethyl acetate). IR (CHCl3, cm"1): 340O5 1775, 1714. 1H-NMR (CDCl35 δ): 1.42-1.70 (m, 5H) , 1.92-2.28 (m, 3H)5 2.63 (t, J=6.5 Hz, 2H)5 3.13-3.25 (m, IH), 3.43 (t, J=6.5 Hz5 2H), 3.55-3.64 (m, IH), 4.00 (m, 2H)5 7.10-7.18 (m, 2H)5 7.47-7.53 (m, 2H). 13C-NMR (CDCl35 δ): 25.4; 26.2; 27.0; 27.5; 38.4; 45.4; 47.6; 48.5; 63.3; 115.0; 122.0; 139.0; 154.0; 160.8; 174.0.
Example 17
2-[4-[(o-Methoxyphenyl)methylamine]butyl]- 1 ,3-dioxoperhydropyrrolo[l 52-c]imidazol, 17 [00127] Chromatography: ethyl acetate/hexane. Yield: 42%; oil. IR (CHCl3, cm-1): 3016-2837, 177O5 1706, 160O5 1492, 1442, 1415, 1242. 1H-NMR (CDCl3, δ): 1.47-1.72 (m, 3H) , 1.95-2.09 (m, 2H)5 2.17-2.28 (m, IH), 2.59 (t, J=7.1 Hz5 2H)5 3.18-3.26 (m, IH)5 3.45 (t5 J=7.1 Hz5 2H)5 3.65 (dt, J=I 1.1; 7.9 Hz5 IH), 3.76 (s, 2H)5 3.82 (s, 3H), 4.04 (dd, J=9.3; 7.9 Hz5 IH) , 6.83-6.91 (m, 2H) , 7.20-7.25 (m, 2H) . 13C-NMR (CDCl3, δ): 24.4; 26.0; 27.0; 27.5; 38.9; 45.5; 47.1; 53.3; 63.3; 110.1; 120.3; 127.1; 130.3; 157.5; 160.9; 174.0. Analysis calculated for C]8H24N3O3.HC1.3/2H2O: C, 54.88; H, 7.16; N, 10.67, found: C, 54.52; H, 7.09; N, 10.52.
Example 18
2-[4-[2-(o-Methoxyphenyl)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]-imidazol, 18 [00128] Chromatography: ethyl acetate/hexane. Yield. 25%; m.p. 160-162°C (chloroform/hexane). IR (CHCl3, cm"1): 3018-2899, 1770, 1709, 1495, 1443, 1418, 1244. 1H-NMR (CDCl3, δ): 1.60-1.77 (m, 5H), 1.96-2.27 (m, 3H)5 2.75 (t5 J=6.8 Hz5 2H), 2.92 (s, 4H)5 3.15-3.27 (m, IH)5 3.45 (t, J=6.6 Hz, 2H)5 3.65 (dt, J=ILO; 7.6 Hz, IH)5 3.79 (s, 3H)5 4.05 (dd, J=9.0; 7.3 Hz, IH)5 4.62 (sa5 IH)5 6.80-6.89 (m, 2H), 7.13-7.22 (m, 2H). 13C-NMR (CDCl3, δ): 25.6; 27.0; 27.5; 27.5; 29.7; 38.4; 45.5; 48.3; 48.7; 55.2; 63.3; 110.3; 120.5; 127.2; 127.7; 130.4; 157.5; 160.7; 173.9. Analysis calculated for C19H26N3O3-HCLH2O: C5 57.20; H, 7.33; N, 10.53, found: C, 57.43; H5 7.03; N5 10.41. Example 19
2- [4- [3 -(o-Methoxyphenyl)propylamine]butyl] -1,3 -dioxoperhydropyrrolo [ 1 ,2-c]imidazol, 19 [00129] Chromatography: toluene/methanol. Yield: 52%; oil. IR (CHCl3, cm"1): 3018-2700, 1772, 1709, 1492, 1442, 1418, 1244. 1H-NMR (CDCl3, δ): 1.60-1.81 (m, 5H), 1.93-2.34 (m, 5H), 2.67 (t, J=6.8 Hz, 2H), 2.77 (m, 4H), 3.16-3.28 (m, IH), 3.46 (t, J=6.6 Hz), 3.67 (dt, J=I 1.1; 7.6 Hz, IH), 3.75 (s, 3H), 4.07 (dd, J=9.3; 7.3 Hz, IH), 6.81-6.90 (m, 2H), 7.10-7.21 (m, 2H) . 13C-NMR (CDCl3, δ): 24.9; 25.6; 27.1; 27.5; 27.6; 27.9; 38.3; 45.6; 48.1; 48.4; 55.4; 63.4; 110.4; 120.6; 127.4; 129.3; 130.0; 157.4; 160.8; 174.0. Analysis calculated for C2oH28N303.HC1.3/2H20: C, 56.93; H, 7.64; N, 9.93, found: C, 57.23; H, 7.21; N, 9.40.
Example 20
2- [4- [4-(o-Methoxyphenyl)butylamine]butyl] - 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazol, 20 [00130] Chromatography: chloroform/methanol, 9.5:0.5. Yield: 27% (oil). IR (CHC3, cm"1): 3700, 1770, 1709, 1601, 1443, 1495, 1585, 1215. 1H-NMR (CDCl3, δ): 1.58-1.74 (m, 9H), 2.01-2.11 (m, 2H), 2.17-2.27 (m, IH), 2.60 (t, J=7.3 Hz, 2H), 2.65-2.570 (m, 4H), 3.18-3.26 (m, IH), 3.46 (t, J=6.8 Hz, 2H), 3.66.(dt, J=I 1.2; 7.6 Hz, IH), 3.79 (s, 3H), 4.05 (dd, J=9.0; 7.6 Hz, IH), 6.80-6.87 (m, 2H), 7.09-7.17 (m, 2H). .sup.l3C-NMR (CDCl.sub.3, .delta.): 23.4; 25.2; 26.3; 27.0; 27.4; 29.6; 37.8; 45.4; 47.1; 47.8; 55.1; 63.4; 110.1; 120.3; 127.1; 129.7; 129.9; 157.2; 160.6; 173.9. Analysis calculated for C21H3N3O3.HC1.3/2H2O: C, 60.31; H, 7.95; N, 10.05, found: C, 60.70; H, 7.56; N, 9.77.
Example 21
2-[3-[3-(o-Methoxyphenyl)propylamine]propyl]- 1 ,3 -dioxoperhydropyrrolo [1 ,2-c]imidazol, 21 [00131] Chromatography: chloroform/methanol, 9.5:0.5. Yield: 27% (oil). IR (CHCl3, cm"1): 3700, 1770, 1707, 1601, 1587, 1493, 1445, 1215. 1H-NMR (CDCl3, δ): 1.62-1.86 (m, 5H), 2.02- 2.32 (m, 3H), 2.56-2.67 (m, 6H), 3.24 (m, IH), 3.54 (t, J=6.8 Hz, 2H), 3.67 (dt, J=I 1.2; 7.6 Hz, IH), 3.81 (s, 3H), 4.06 (dd, J=9.0; 7.3 Hz, IH), 6.81-6.91 (m, 2H), 7.10-7.22 (m, 2H). .sup13C- NMR (CDCl3, δ): 26.9; 27.5; 27.8; 28.4; 30.0; 36.9; 45.5; 46.7; 49.5; 55.2; 63.3; 110.2; 120.3; 127.0; 129.8; 130.5; 157.4; 160.9; 174.0. Analysis calculated for C18H25N3O3.HC1.3H2O: C, 51.24; H, 7.64; N3 9.96, found: C, 51.26; H, 7.25; N, 9.57.
Example 22.
2-[4-[(Chroman-2(R)-yl)methylamino]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole,
(diastereoisomers) (a).
Figure imgf000027_0001
[00132] Chromatography: ethyl acetate. Yield: 35%.1H-NMR (CDCl3, δ): 1.47-1.86 (m, 5H5 - (CH2)2-, H7), 1.91-2.12 (m, 4H, 2H3., 2H6), 2.16-2.34 (m, IH, H7), 2.64-2.92 (m, 6H, 2CH2NH, 2H4.), 3.16-3.28 (m, IH, H5), 3.48 (t, J= 7.1 Hz, 2H, NCH2), 3.66 (dt, J= 11.2, 7.3 Hz, IH, H5), 4.05 (dd, J= 9.1, 7.3 Hz, IH, H7a), 4.11-4.18 (m, IH, H2'), 6.81 (t, J= 7.6 Hz, 2H, H6-, H8 ), 7.00-7.10 (m, 2H, H5-, H7 ).13C-NMR (CDCl3, δ): 24.6 (C3), 25.6 (C4), 25.8 (CH2), 26.9 (CH2), 27.1 (C6), 27.5 (C7), 38.7 (NCH2), 45.4 (C5), 49.3 (CH2CH2NH), 54.1 (HNCH2CH), 63.2 (C7a), 75.0 (C2), 116.7 (C8-), 120.1 (C6-), 121.9 (C4.a), 127.1 (C7-), 129.4 (C5-), 154.5 (C8.a), 160.8 (C3), 173.9 (d).Analysis calculated for C20H27N3O3.HCl:C, 60.98; H, 7.16; N, 10.67, Found: C, 60.15; H, 7.14; N, 10.45
Example 23.
2-[4-[(Chroman-2-yl)methylamino]butyl]-l,3-dioxoperhydroimidazo[l,5-a]pyridine, (b).
Figure imgf000027_0002
[00133] Chromatography: ethyl acetate. Yield: 30%. H-NMR (CDCl3, δ): 1.06-1.40 (m, 3H, H6ax, H7ax, H8ax), 1.60-1.62 (m, 7H, H6ec, -(CH2)2-, 2H30, 1-88-2.09 (m, IH, H7ec), 2.11-2.18 (m, IH, Hseo), 2.71-2.74 (m, 4H, 2NHCH2), 2.85-2.87 (m, 3H, H5ax, 2H4'), 3.47 (t, 2H, J= 6.6 Hz, NCH2), 3.67 (dd, IH, J= 11.9, 4.3 Hz, H8a), 4.03-4.14 (m, 2H, H560, H2-), 6.76 (t, 2H, J= 7.6 Hz, H6-, H8.), 6.98 (t, 2H, J= 6.3 Hz, H5., H7').Analysis calculated for C21H29N3O3-HCl-H2O: C, 59.21; H, 7.57; N, 9.87, Found:C, 58.76; H, 7.01; N, 9.89 Example 24. 2-[4-[(Chroman-2-yl)methylamino]butyl]-l,3-dioxoperhydropyrrolo[l,2-a]pyrazine, (c).
Figure imgf000028_0001
[00134] Chromatography: ethyl acetate. Yield: 35%. H-NMR (CDCl3, δ): 1.14-2.09 (m, 9H, - (CHt)2-, 2H7, H8, 2H3O, 2.28-2.34 (m, IH, H8), 2.65-2.93 (m, 6H, 2NHCH2, 2H4-), 3.29-3.56 (m, 4H5 NCH2, 2H6), 3.71 (d, IH, J= 11.9 Hz, H3), 4.04-4.14 (m, 3H, H3, H8a, H2-), 6.67-6.80 (m,
2H3 H6., H8.), 6.95-7.22 (m, 2H, H5-, H7-). '3C-NMR (CDCl3, δ): 22.8 (C7), 24.7, 25.0, 25.7, 26.7, 29.0 (-(CHs)2-, C8, C3', C4.), 45.4 (NCH2), 46.0 (C6), 49.4 (NHCH2), 51.9 (C3), 54.0 (NHCH2), 59.2 (C83), 74.7 (C2.), 116.9 (C8.), 120.4 (C6.), 122.1 (C4a0, 127.4 (C7=), 129.7 (C5.), 154.6 (C8a.), 163.4 (C4), 167.4 (d).Analysis calculated for C21H29N3O3.HC1-2H2O: C, 56.81; H, 7.72; N, 9.46, Found: C, 56.73; H, 7.09; N, 9.55
[00135] Example 25. 2-[5-[(Chroman-2-yl)methylamino]pentyl]-l, 3- dioxoperhydropyrrolofl, 2-c] imidazole, (d).
Figure imgf000028_0002
Chromatography: ethyl acetate.
Yield: 32%-
1H-NMR (CDCk δ): 1.34-1.39 (m, 2H, -(CH2)-), 1.61-1.76 (m, 6H, -(CH2)2-, 2H3.), 2.01-2.10
(m, 3H, 2H6, H7), 2.17-2.33 (m, IH, H7), 2.75-2.78 (m, 4H, CH2CH2NH, HNCH2CH), 2.81-2.94
(m, 2H, 2H4.), 2.93-2.98 (m, IH, H5), 3.45 (t, J= 7.1 Hz, 2H, NCH2), 3.58-3.78 (m, IH, H5), 4.06
(dd, J= 9.1, 7.3 Hz, IH, H7a), 4.29-4.39 (m, IH, H2-), 6.82-6.89 (m, 2H, H6., H8.), 7.02-7.11 (m,
2H5 H5., H7-).
13C-NMR (CDCk δ): 23.6 (CH2), 24.9 (C3.), 25.1 (C4.), 26.9 ((CH2)2), 27.2 (C6), 27.4 (C7), 38.0
(NCH2), 38.5 (C5), 45.3 (CH2CH2NH), 47.9 (HNCH2CH), 63.3 (C7a), 70.9 (C2), 117.1 (C8.), 121.0 (C6.), 121.2 (C4-O, 127.4 (C5-), 129.3 (C7-), 153.0 (C8-0, 160.7 (C3), 173.9 (C1).
Figure imgf000029_0001
C, 59.21; H, 7.57; N, 9.87 Found: C, 59.19; H5 7.17; N, 9.64
[00136] Example 26. 2-[6-[(Chroman-2-yl)methylamino]hexyl]-l,3- dioxoperhydropyrrolo[l, 2-c] imidazole, (e).
Figure imgf000029_0002
Chromatography: chloroform/methanol, 9.5:0.5. Yield: 35%-
1H-NMR CCDCk S): 1.28-1.35 (m, 4H, -(CH2)2-)5 1.60-1.80 (m, 6H, -(CH2)2-, 2H3-), 1.96-2.14 (m, 3H5 2H6, H7), 2.17-2.33 (m, IH, H7), 2.77-3.03 (m, 6H5 CH2CH2NH, HNCH2CH, 2H4-), 3.17-3.30 (m, IH, H5), 3.45 (t, J= 7.1 Hz, 2H, NCH2), 3.58-3.78 (m, IH, H5), 4.06 (dd, J= 9.1, 7.3 Hz, IH, H7a), 4.29-4.39 (m, IH, H2-), 6.80-6.93 (m, 2H, H6-, H8-), 7.00-7.08 (m, 2H5 H5-, H7-). 13C-NMR (CDCk δ): 24.1 (CH2), 24.3 (C3-), 25.5 (C4.), 26.3, 26.5, 27.0 ((CH2)3), 27.5 (C6), 27.8 (C7), 38.7 (NCH2), 45.5 (C5), 49.2 (CH2CH2NH), 53.1 (HNCH2CH)5 63.3 (C7a), 72.7 (C2'), 116.9 (C8.), 120.4 (C6-), 121.7 (C4-0, 127.3 (C5.), 129.5 (C7-), 154.1 (C8-O, 160.9 (C3), 174.0 (C1). Analysis calculated for CTjHrIN1 (XHCLH2O:
C, 60.06; H, 7.79; N, 9.55 Found: C5 60.46; H, 7.41; N, 9.54
[00137] Example 27. 2-[3-[(Chroman-2-yl)methylamino]proρyl]-l, 3- dioxoperhydropyrroϊofl, 2-c] imidazole, (f).
Figure imgf000029_0003
Chromatography: ethyl acetate. Yield: 40%. 1H-NMR (ODCK δ): 1.64-2.32 (m, 8H, -(CH2)-, 2H6, 2H7, 2H3'), 2.68-2.88 (m, 6H, 2CH2NH,
2H4.), 3.18-3.30 (m, IH, H5), 3.58 (t, 2H, J = 6.8 Hz, NCH2), 3.65-3.70 (m, IH, H5), 4.03-4.17
(m, 2H, H7a, H2>), 6.79-6.86 (m, 2H, H6-, H8.), 7.02-7.11 (m, 2H5 H5-, H7O-
13C-NMR (CDCl3, δ): 24.6 (C3-), 25.6 (C4-), 26.9 (CH2), 27.5 (C6), 28.1 (C7), 36.9 (NCH2), 45.5
(C5), 46.9 (CH2CH2NH), 54.0 (HNCH2CH), 63.3 (C78), 74.9 (C2), 116.8 (C8.), 120.2 (C6O, 122.0
(C4-B), 127.2 (C7-), 129.5 (C5O, 154.6 (Cffa), 160.9 (C3), 174.0 (C1).
Figure imgf000030_0001
C, 60.07; H, 6.90; N, 11.06 Found: C, 59.65; H, 6.91; N, 10.55
[00138] Example 28. 3-[8-[(Chroman-2-yl)methylamino]octyl]-2,4~dioxothiazolidine, (g).
Figure imgf000030_0002
Chromatography: ethyl acetate.
Yield: 35%; m.p. 108-111 0C.
1H-NMR (CDCl3, δ): 1.29-1.31 (m, 8H, -(CH2)4-), 1.55-1.66 (m, 4H, CH2, 2H3-), 1.71-1.86 (m,
2H, CH2), 2.70-2.93 (m, 6H, 2NHCH2, 2H4-), 3.60 (t, J= 7.6 Hz, 2H, NCH2), 3.94 (s, 2H, 2H5),
4.19-4.25 (m, 2H5 H2', NH), 6.80-6.86 (m, 2H5 H6>, H8.), 7.01-7.11 (m, 2H, H5-, H7-).
13C-NMR (CDCl3, δ): 24.3, 25.4, 26.4, 26.9, 27.3, 28.8, 28.9, 29.0 (-(CHa)6-, C3-, C4-), 33.5 (C5),
41.9 (NCH2), 49.3, 53.3 (2CH2NH), 74.0 (C2'), 116.6 (C8'), 120.2 (C6-), 121.7 (C41-), 127.1 (C7-),
129.3 (C5'), 154.2 (C8a-), 171.3, 171.7 (C2, C4).
Analysis calculated for C2IH3JJN2OIS-HCI-SH2O:
C5 52.43; H, 7.75; N, 5.82 Found: C, 52.33; H5 6.78; N5 5.79
[00139] Example 29. 2-[4-[(Chroman-2(S)-yl)methylamino]butyl]-l ,3- dioxoperhydroρyrrolo[l,2-c]imidazole, (diastereoisomers) (h).
Figure imgf000030_0003
Chromatography: ethyl acetate.
Yield: 38%.
[D]25D = +65 (c = 0.5, CHCl3).
Analysis calculated for CnHjnN?OjS.HCl-3H?O:
C5 53.62; H, 7.65; N5 9.38 Found: C5 53.45; H, 7.34; N5 9.45
[00140] Example 30. 2-[8-[(Chroman-2-yl)methylamino]octyl]-l53- dioxoperhydropyrrolo[l ,2-c]imidazole5 (i).
Figure imgf000031_0001
Chromatography: ethyl acetate.
Yield: 35%.
1H-RMN (CDCIj, δ): 1.29-1.31 (m, 8H5 -(CH2)4-)5 1.55-1.88 (m, 7H5 -(CH2V, 2H3.5 H7), 1.94-
2.34 (m, 3H5 2H6, H7), 2.54 (br S5 IH5 NH)5 2.66-2.97 (m, 6H5 2CH2NH5 2H4.)5 3.18-3.29 (m, IH5
H5), 3.44 (t, 2H5 J= 7.3 Hz5 NCH2), 3.62-3.74 (m, IH5 H5), 4.06 (dd5 IH5 J= 7.8, 7.6 Hz5 H7a),
4.14-4.21 (m, IH, H2'), 6.80-6.86 (m, 2H5 H6', H8.), 7.01-7.11 (m, 2H, H5., H7').
13C-RMN (CDCk δ): 24.6, 25.7, 26.6, 27.0, 27.1, 27.6, 27.9, 29.0 (-(CH2)6-, C3., C4.), 29.3 (C6),
29.6 (C7), 39.0 (NCH2), 45.5 (C5), 49.8 (CH2CH2NH)5 54.0 (HNCH2CH), 63.3 (C7a), 74.7 (C2.),
116.8 (C8.), 121.2 (C6.), 121.9 (C4.a), 127.2 (C5-), 129.5 (C70, 154.5 (C8.a), 160.9 (C3), 174.0 (C1).
[00141] Example 31. (E)-2-[4-[(Chroman-2-yl)methylamino]but-2-enyl]-l ,3- dioxoperhydropyrrolo[l 52-c]imidazole5 (1).
Figure imgf000031_0002
Chromatography: ethyl acetate. Yield: 43%. 1H-RMN (CDCk δ): 1.63-2.31 (m, 6H, 2H6, 2H7, 2H3.), 2.65-2.93 (m, 4H, CH2NH, 2H4.), 3.17- 3.31 (m, 3H, CH2NH, H5), 3.67 (dt, IH, J = 11.2, 7.6 Hz, H5), 4.03-4.14 (m, 4H, NCH2, H7a, H2'), 5.54-5.85 (m, 2H, CH=CH), 6.77-6.85 (m, 2H, H6-, H8'), 7.00-7.10 (m, 2H, H5-, H7-). 13C-RMN (CDCl3, δ): 24.7 (C3-), 25.7 (C4'), 27.1 (C6), 27.6 (C7), 40.2 (NCH2), 45.6 (C5), 50.9, 53.6 (2CH2NH), 63.5 (C7a), 75.1 (C2), 116.8 (C8-), 120.3 (C6-), 122.1 (C4.a), 124.8 (CH), 127.3 (C7'), 129.6 (C5-), 132.3 (CH), 154.6 (C8.a), 160.4 (C3), 173.6 (C1). Analysis calculated for C2nH2SN1OrHCHH2O:
C, 51.78; H, 7.39; N, 9.06 Found: C, 52.16; H, 7.00; N, 9.16
[00142] Example 32. 2-[4-[2-(o-Methoxyphenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolofl ,2-c] imidazole (m).
Figure imgf000032_0001
Chromatography: ethyl acetate.
Yield: 38%.
1H-RMN (CDCl3, S): 1.63-1.71 (m, 5H, -(CH2)2-, H7), 1.99-2.29 (m, 3H, 2H6, H7), 2.78 (t, 2H, J
= 6.8 Hz, CH2NH), 3.01-3.10 (m, 2H, CH2NH), 3.21 (ddd, IH, J= 11.2, 6.1, 5.6 Hz, H5), 3.57-
3.80 (m, 3H, NCH2, H5), 3.83 (s, 3H, OCH3), 4.00-4.18 (m, 3H, OCH2, H7a), 6.87-6.90 (m, 4H,
ArH).
13C-RMN (CDCl3, δ): 25.5, 25.6 (-(CH2)2-), 26.5, 27.4 (C6, C7), 38.4 (NCH2), 45.4 (C5), 48.1,
48.6 (2CH2NH), 63.2 (C7a), 67.7 (OCH3), 71.0 (OCH2), 111.8 (C6.), 120.9 (C4'), 125.9, 129.7
(C3-, C5.), 130.5 (C2.), 147,8 (C1.), 160.6 (C3), 173.9 (C1).
Analysis calculated for C1QHT2N1O4-HCUH2O:
C, 48.56; H, 7.72; N, 8.94 Found: C, 48.16; H, 7.32; N, 8.48
[00143] Example 33. 2-[4-[2-(m-Methoxyphenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c] imidazole, (n).
Figure imgf000033_0001
Chromatography: ethyl acetate.
Yield: 38%.
1H-RMN (CDCl3. S): 1.42-1.70 (m, 4H, -(CH2)2-), 1.95-2.06 (m, 3H, 2H6, H7), 2.10-2.19 (m, IH5
H7), 2.64 (t, 2H, J= 6.8 Hz, CH2NH), 2.92 (t, 2H, J= 5.4 Hz, CH2NH), 3.16 (ddd, IH, J- 11.2,
7.3, 5.4 Hz, H5), 3.39 (t, 2H, J= 6.3 Hz, NCH2), 3.59 (dt, IH, J= 11.3, 7.6 Hz, H5), 3.71 (s, 3H,
OCH3), 3.97-4.07 (m, 3H, OCH2, H7a), 6.41-6.47 (m, 3H, H2-, H4-, H6O, 7.10 (t, IH, J= 7.8 Hz3
H5-).
13C-RMN TCDCl3, δ): 25.8 (-(CHj)2-), 27.0, 27.5 (C6, C7), 38.7 (NCH2), 45.6 (C5), 48.3, 49.0
(2CH2NH), 63.2 (C78), 67.2, 68.6 (OCH3, OCH2), 101.0 (C2-), 106.4, 106.6 (C4-, C6-), 129.8 (C5O,
138.9 (CiO, 160.0 (C3O, 160.8 (C30, 173,9 (C1).
Analysis calculated for CiQH22N3O4-HCl-SH2O:
C, 50.49; H, 7.58; N, 9.30 Found: C, 50.71; H, 7.18; N, 8.90
[00144] Example 34. 2-[4-[2-(o-Bromophenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c]imidazole, (o).
Figure imgf000033_0002
Chromatography: ethyl acetate.
Yield: 48%; m.p. 98-99 0C.
1H-RMN TCDCl3. δ): 1.46-1.69 (m, 4H, -(CHb)2-), 1.98-2.20 (m, 4H, 2H6, 2H7), 2.70 (t, 2H, J =
6.8 Hz, CH2NH), 3.00 (t, 2H, J = 5.1 Hz, CH2NH), 3.19 (ddd, IH, J = 11.2, 7.3, 5.4 Hz, H5),
3.46 (t, 2H, J = 7.1 Hz, NCH2), 3.64 (dt, IH, J = 11.2, 7.6 Hz, H5), 3.99-4.12 (m, 3H, OCH2, H7a), 6.80 (dt, 2H5 J= 8.1, 8.0 Hz5 H4-, H6.), 7.21 (td, IH, J= 5.9, 1.2 Hz, H5'), 7.49 (dd, IH, J=
7.8, 1.4 Hz5 H3.).
13C-RMN (CDCl3, δ): 25.6, 26.8 (-(CH2)2-)5 26.9, 27.4 (C6, C7), 38.6 (NCH2), 45.4 (C5), 48.2,
48.9 (2CH2NH)5 63.1 (C7a), 68.4 (OCH2), 112.2 (C2-), 113.4 (C6.), 121.9 (C4-), 128.3 (C5.), 133.1
(C3.), 155.0 (Cr), 160.6 (C3), 173.8 (C1).
Analysis calculated for C2RH24BrN3O3.HCl.2H9O:
C, 44.78; H, 6.05; N, 8.70 Found: C, 44.38; H5 5.65; N5 9.05
[00145] Example 35. 2-[4-[2-(m-Bromophenoxy)emylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c]imidazole, (p).
Figure imgf000035_0001
Chromatography: ethyl acetate.
Yield: 42%; m.p. 140-143 0C.
1H-RMN TCDCl3, S): 1.42-1.74 (m, 4H3 -(CH2)2-), 1.94-2.22 (m, 4H5 2H6, 2H7), 2.68 (t, 2H, J=
7.1 Hz5 CH2NH), 2.96 (t, 2H, J = 5.1 Hz5 CH2NH)5 3.19 (ddd, IH5 J = 11.2, 7.3, 5.1 Hz5 H5),
3.45 (t5 2H, J = 7.8 Hz5 NCH2), 3.64 (dt5 IH5 J = 11.2, 7.6 Hz, H5), 3.99-4.14 (m, 3H, OCH2,
H7a), 6.78-6.83 (m, IH5 H4-), 7.02-7.10 (m, 3H, H2-, H5., H6-).
13C-RMN (CDCl3, δV 25.6, 26.9, 27.4 (-(CH2)2-, C6, C7), 38.6 (NCH2), 45.4 (C5), 48.4, 49,0
(2CH2NH)5 63.2 (C7a), 67.3 (OCH2), 113.4 (C6O, 117.7 (C2-), 122.6 (C3'), 123.8 (C4-), 130.4
(C5-), 159.5 (C1.), 160.7 (C3), 173.8 (C1).
Figure imgf000035_0002
C5 44.78; H5 6.05; N, 8.70 Found: C, 44.47; H5 5.65; N, 9.30
[00146] Example 36. 2-[4-[2-(o-Emylphenoxy)emylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c] imidazole, (q).
Figure imgf000035_0003
Chromatography: chloroform/methanol, 9.5:0.5.
Yield: 28%; m.p. 115-118 0C (hexane).
1H-RMN TCDCl3, δ): 1.19 (t, 3H, J = 7.4 Hz5 CH3), 1.59-1.74 (m, 5H5 -(CH2)2-5 H7), 1.97-2.09
(m, 2H, 2H6), 2.17-2.28 (m, IH, H7), 2.63 (q, 2H5 J= 7.6 Hz, CH2CH3), 2.80 (t, 2H5 J= 7.1 Hz5
CH2NH)5 3.08 (t, 2H, J = 5.1 Hz5 CH2NH)5 3.17-3.29 (m5 IH, H5), 3.50 (t, 2H, J = 6.8 Hz, NCH2), 3.61-3.75 (m, IH, H5), 4.02-4.15 (m, 3H, OCH2, H7a), 6.82-6.94 (m, 2H5 H4>, H6-), 7.11-
7.17 (m, 2H9 H3', H5O-
13C-RMN TCDCl3, δ); 12.2 (CH3), 23.2, 25.7, 26.6 (CH2CH3, -(CHj)2-), 27.0, 27.5 (C6, C7), 38.6
(CH2NCO), 45.5 (C5), 48.5, 48.9 (2CH2NH), 63.3 (OCH2, C7a), 111.3 (C6-), 120.8 (C4-), 126.8,
129.0 (C3-, C5.), 132.7 (C2-), 156.3 (Cr), 160.8 (C3), 167.4 (C1).
Analysis calculated for C2PH2QN3O1-HCUH9O:
C, 55.61; H5 7.93; N5 9.73 Found: C5 55.89; H5 7.53; N, 9.81
[00147] Example 37. 2-[4-[2-(m-Ethylphenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l ,2-c]imidazole5 (r).
Figure imgf000036_0001
Chromatography: ethyl acetate. Yield: 43%.
1H-RMN (CDCl3, δ): 1.24 (t, 3H, J= 7.6 Hz, CH3), 1.59-1.74 (m, 5H5 -(CH2)2-5 H7), 1.97-2.09 (m, 2H5 2H6), 2.17-2.28 (m, IH, H7), 2.63-2.74 (m, 4H5 CH2CH3, CH2NH)5 3.12 (t, 2H, J= 5.1 Hz, CH2NH), 3.17-3.29 (m, IH, H5), 3.50 (t, 2H5 J = 7.1 Hz5 NCH2), 3.61-3.75 (m, IH, H5), 4.02-4.15 (m, 3H, OCH2, H7a)5 6.72-6.86 (m, 3H, Hy, H4., H6-), 7.21 (t, IH5 J= 7.8 Hz5 H5.). 13C-RMN (CDCl3. δ): 15.5 (CH3), 25.5, 25.8, 27.0 (CH2CH3, -(CHj)2-), 27.3, 27.6 (C6, C7), 38.8 (NCH2), 45.6 (C5), 48.7, 49.0 (2CH2NH)5 63.4 (C7a)5 66.9 (OCH2), 111.5 (C2.), 114.4 (C6-), 120.6 (C4-), 129.3 (C50, 146.0 (C3.), 158.9 (C,.), 160.9 (C3), 174.0 (C1).
Figure imgf000036_0002
C, 58.03; H, 7.79; N5 10.15 Found: C, 57.92; H, 7.91; N5 10.12 [00148] Example 38. 2-[4-[2-(o-Isopropylphenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolo [ 1 ,2-c] imidazole, (s) .
Figure imgf000037_0001
Chromatography: ethyl acetate.
Yield: 23%.
1H-RMN (ODCl3, δ): 1.21 (d, 6H, J= 7.9 Hz, 2CH3), 1.44-1.76 (m, 5H, -(CH2)2-, H7), 1.95-2.32
(m, 3H, 2H6, H7), 2.71 (t, 2H, J= 6.8 Hz, CH2NH), 3.02 (t, 2H, J= 5.1 Hz, CH2NH), 3.17-3.37
(m, 2H, CH, H5), 3.49 (t, 2H, J= 7.1 Hz, NCH2), 3.67 (dt, IH5 J= 7.6, 3.9 Hz, H5), 4.00-4.09 (m,
3H, OCH2, H78), 6.82-6.96 (m, 2H, H4., H6-), 7.09-7.22 (m, 2H, H3-, H5-).
13C-RMN (CDCl3, δ): 22.7 (CH3), 25.9, 26.9, 27.0, 27.3, 27.6 (-(CH2)2-, CH, C6, C7), 38.8
(NCH2), 45.6 (C5), 49.0, 49.2 (2CH2NH), 63.4 (C7a), 67.5 (OCH2), 111.5 (C6.), 120.8 (C4-),
126.1, 126.6 (C3', C5-), 135.3 (C20, 157.5 (Cr), 160.8 (C3), 173.9 (C1).
[00149] Example 39. 2-[4-[(2-Quinolyl)methylamino]butyl]-l,3-dioxoperhydropyrrolo[l,2- c] imidazole, (t).
Figure imgf000037_0002
Chromatography: ethyl acetate.
Yield: 33%; m.p. 125-126 0C
IR CCHCk cm'1): 1770, 1708 (CONCON), 1601, 1504, 1442, 1416 (Ar).
1H-RMN (CDCk δ): 1.52-1.67 (m, 5H, -(CHa)2-, H7), 1.90-2.27 (m, 3H, 2H6, H7), 2.50 (t, 2H, J
= 6.3 Hz, CH2NH), 3.01-3.24 (m, IH, H5), 3.42 (t, 2H, J = 6.8 Hz, NCH2), 3.53-3.69 (m, IH,
H5), 3.91-4.00 (m, 3H, CH2Ar, H7a), 7.47 (t, J = 7.1 Hz, IH, H6-), 7.62-7.77 (m, 3H, H3-, H5',
H7.), 8.02 (d, J= 8.3 Hz, IH, H4.), 8.11 (d, J= 8.5 Hz, IH, H8.). 13C-RMN (CDCk δ): 24.4, 25.8, 26.8, 27.4 (2CH2, C6, C7), 38.7 (NCH2), 45.4 (C5), 53.8, 54.1 (CH2Ar5 CH2NH), 63.1 (C78), 120.9 (C3.), 126.0 (C6.), 127.2, 127.4 (C5-, C8.), 128.9, 129.2 (C4-, C7.), 130.7 (C4-0, 155.9 (C2-), 160.5 (C8-0, 160.7 (C3), 173.8 (C1).
[00150] Example 40. 2-[4-[2-(o-Ethoxyphenoxy)ethylamino]butyl]-l ,3- dioxoperhydropyrrolo[l,2-c]imidazole, (u).
Figure imgf000038_0001
Chromatography: ethyl acetate.
Yield: 30%.
1H-RMN (CDCl3, δ): 1.43 (t, 3H, J = 6.8 Hz, CH3), 1.62-1.72 (m, 5H, -(CHz)2-, H7), 1.94-2.27
(m, 3H, 2H6, H7), 2.78 (t, 2H, J= 6.6 Hz, CH2NH), 3.06 (t, 2H, J= 5.1 Hz, CH2NH), 3.22 (ddd,
IH, J = 12.4, 7.3, 5.1 Hz, H5), 3.44-3.72 (m, 3H, NCH2, H5), 4.01-4.17 (m, 4H, OCH2, H7a,
CH2CH3), 6.87-6.92 (m, 4H, ArH).
13C-RMN (CDCl3, δ): 14.8 (CH3), 25.6, 26.4, 26.8, 27.4 (-(CELj)2-, C6, C7), 38.5 (NCH2), 45.4
(C5), 48.3, 48.7 (2CH2NH), 63.2 (C7O, 64.3 (CH2CH3), 68.3 (OCH2), 113.6, 115.1, 120.9, 121.8
(C6., C4., C3., C5-), 148.3 (C2.), 149.1 (Cr), 160.7 (C3), 173.8 (C1).
[00151] Example 41; 2-[4-[2-(o-Isopropoxyphenoxy)ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l,2-c]imidazole, (v).
Figure imgf000038_0002
Chromatography: ethyl acetate. Yield: 23%. H-RMN rCDCL. δ): 1.33 (d, 6H, J= 6.1 Hz, 2CH3), 1.55-1.71 (m, 4H, -(CEb)2-). 2.04-2.26 (m, 4H, 2H6, 2H7), 2.72 (q, 2H, J = 6.2 Hz, CH2NH), 3.02 (q, 2H, J= 5.1 Hz, CH2NH), 3.23 (ddd, IH, J= 12.5, 7.3, 5.1 Hz, H5), 3.48 (t, 2H, J= 6.8 Hz, NCH2), 3,67 (dt, IH, J= 11.0, 7.8 Hz, H5), 4.02-4.13 (m, 3H, OCH2, H7a), 4.45 (sept, IH, J= 6.1 Hz, CH), 6.89-6.92 (m, 4H, ArH). 13C-RMN TCDCl3. δ): 22.1, 22.2 (CH3), 25.8, 27.0, 27.5 (-(CEy2-, C6, C7), 38.7 (NCH2), 45.5 (C5), 48.7, 49.0 (2CH2NH), 63.3 (C7O, 68.7 (OCH2), 72.1 (OCH), 115.5, 116.7, 117.6, 121.8 (C6-, C4-, C3., C5.), 145.5 (C2.), 151.2 (C1-), 160.3 (C3), 173.9 (C1).
Figure imgf000039_0001
C, 58.03; H, 7.79; N, 10.15 Found: C, 57.92; H, 7.91; N, 10.12
[00152] Example 42. 2-[4-[2-[m-(Trifluoromethyl)phenoxy]ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l, 2-c] imidazole, (w).
Figure imgf000039_0002
Chromatography: ethyl acetate/ethanol, 9:1.
Yield: 30%.
1H-RMN (CDCl3, S): 1.50-1.72 (m, 5H, -(CEk)2-, H7), 1.91-2.21 (m, 3H, 2H6, H7), 2.72 (t, 2H, J
= 6.8 Hz, CH2NH), 3.01 (t, 2H, J= 5.2 Hz, CH2NH), 3.11-3.22 (m, IH, H5), 3.42 (t, 2H, J= 6.8
Hz, NCH2), 3.58-3.67 (m, IH, H5), 3.96-4.29 (m, 3H, OCH2, H7O, 7.05-7.17 (m, 3H, H2., H4-,
H6.), 7.32 (t, IH, J= 7.9 Hz, H5-).
Analysis calculated for C1QHT4FaN1O1-HCLH7Q:
C, 50.28; H, 6.00; N, 9.26 Found: C, 50.62; H, 6.10; N, 8.75 [00153] Example 43. 2-[4-[2-(J, 1 '-Biphenyl-2-yloxy)ethylamino]butyl]-l, 3- dioxoperhydropyrrolo[l, 2-c] imidazole, (x).
Figure imgf000040_0001
Chromatography: ethyl acetate/ethanol, 9:1.
Yield: 35%.
1H-RMN (CDCl3, δ): 1.22-1.77 (m, 4H, -(CHJO2-)). 1.93-2.08 (m, 3H5 2H6, H7), 2.16-2.30 (m,
IH, H7), 2.57 (t, 2H, J = 7.0 Hz, CH2NH), 2.95 (t, 2H, J= 5.1 Hz, CH2NH), 3.12-3.21 (m, IH3
H5), 3.37 (t, 2H, J= 7.0 Hz, NCH2), 3.53-3.62 (m, IH, H5), 3.96-4.05 (m, 3H, OCH2, H7a), 6.79-
7.00 (m, 2H, ArH), 7.18-7.47 (m, 7H, ArH).
13C-RMN TCDCl3. δV 25.7, 26.9, 27.0, 27.5 (-(CH2)2-, C6, C7), 38.7 (NCH2), 45.5 (C5), 48.5,
48.9 (2CH2NH), 63.3 (C73), 68.1 (OCH2), 113.3 (C6-), 121.3 (C4'), 126.9, 128.6 (C3-, C5.), 127.9,
129.5, 130.8 (5CH-Ph)5 131.4 (C2-), 138.5 (C-Ph), 155.7 (CiO, 160.8 (C3), 173.9 (C1).
Analysis calculated for C24H2QN1Oi-HCLoH2O:
C, 52.21; H, 7.67; N, 7.61 Found: C, 52.61; H, 7.27; N, 8.01
[00154]
Example 44. 2-[4-[2-[o-(Acetylamino)phenoxy]ethylamino]butyl]-l, 3- dioxoper hydropyrrolo[l, 2 -c] 'imidazole, (y).
Figure imgf000040_0002
Chromatography: ethyl acetate/ethanol, 9:1. Yield: 24%- H-RMN (CDCl3, δ): 1.60-1.71 (m, 5H5 -(CH2)I-, H7), 1.96-2.17 (m, 3H, 2H6, H7), 2.21 (s, 3H, CH3), 2.78 (t, 2H, J= 6.9 Hz, CH2NH), 3.09 (t, 2H, J = 4.9 Hz, CH2NH), 3.14-3.26 (m, IH, H5), 3.43 (t, 2H, J = 7.1 Hz, NCH2), 3.62 (dt, IH, J = 11.2, 7.8 Hz, H5), 3.93-4.19 (m, 3H, OCH2, H7a), 6.82-6.99 (m, 3H, ArH), 8.14 (dd, IH3 J= 7.3, 1.7 Hz, ArH), 8.68 (br s, IH, NH). 13C-RMN TCDCl3. δ): 24.6 (CH3), 25.2, 25.3, 26.9, 27.4 (-(CH2)2-, C6, C7), 38.0 (NCH2), 45.3 (C5), 47.7, 48.2 (2CH2NH)5 63.2 (C7a), 66.8 (OCH2), 112.2 (C6'), 121.5, 121.7 (C3-, C4-), 124.0 (C50, 128.1 (C2.), 147.4 (C1-), 160.6 (C3), 169.0 (CONH), 173.9 (Ci). Analysis calculated for CTnHTgN4O4-HClJH2O:
C, 50.15; H, 7.37; N, 11.70 Found: C, 50.55; H, 7.75; N, 11.98
[00155] Example 45. 2-[4-[2-[m-(Acetylamino)phenoxy]ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l, 2-c] imidazole, (z).
Figure imgf000041_0001
Chromatography: ethyl acetate/methanol, 9:1. Yield: 31%-
1H-RMN (CDCl3, δ): 1.60-1.72 (m, 5H, -(CH2)2-5 H7), 1.96-2.15 (m, 3H, 2H6, H7), 2.21 (s, 3H, CH3), 2.82 (t, 2H, J = 6.1 Hz, CH2NH), 3.08 (t, 2H, J = 5.8 Hz, CH2NH), 3.19 (ddd, IH, J = 11.2, 7.6, 5.1 Hz, H5), 3.44 (t, 2H, J = 6.9 Hz, NCH2), 3.62 (dt, IH, J= 11.2, 7.8 Hz, H5), 4.00- 4.10 (m, 3H, OCH2, H7a), 4.54 (br s, IH, NH), 6.54-6.57 (m, IH, ArH), 6.97-7.19 (m, 3H, ArH). 13C-RMN (CDCl3, δ): 24.7 (CH3), 25.4, 25.9, 27.2, 27.6 (-(CH2)2-, C6, C7), 38.5 (NCH2), 45.6 (C5), 48.6, 48.8 (2CH2NH), 63.5 (C7a), 65.6 (OCH2), 106.8 (C2-), 110.2 (C6O, 113.1 (C4O, 129.9 (C5O, 138.6 (C3O, 158.7 (Cr), 160.9 (C3), 169.4 (CONH), 174.2 (Ci). Analysis calculated for C2OH2RN4O4-HCLSH2O:
C, 50.15; H5 7.37; N, 11.70 Found: C5 50.65; H, 7.65; N, 12.03 [00156] Example 46. 2-[4-[2-[o-(Ethoxycarbonyl)phenoxy]ethylamino]butyl]-l,3- dioxoperhydropyrrolo[l, 2-c] imidazole, (aa).
Figure imgf000042_0001
Chromatography: ethyl acetate/ethanol, 9:1.
Yield: 25%-
1H-RMN TCDCl3, δV 1.39 (t, J= 7.2 Hz, CH3CH2), 1.66-1.83 (m, 5H5 -(CH2)2-, H7), 1.94-2.45
(m, 5H3 2H6, H7, CH2NH), 3.15-3.27 (m, 3H, CH2NH, H5), 3.44-3.54 (m, 2H, NCH2), 3.66 (dt,
IH, J= 11.2, 7.6 Hz, H5), 4.07 (dd, IH, J= 9.0, 7.3 Hz, H7a), 4.33 (q, 2H, J= 7.1 Hz, CH3CH2),
4.54 (t, 2H5 J= 4.6 Hz, OCH2), 7.01-7.11 (m, 2H5 ArH), 7.50 (td, IH5 J= 7.8, 1.7 Hz5 ArH), 7.84
(dd, IH5 J= 7.8, 1.5 Hz5 ArH).
13C-RMN TCDCl3, δ): 14.0 (CH3CH2), 22.9, 24.8, 26.9, 27.4 (-(CH2)2-, C6, C7), 37.5 (NCH2),
45.3 (C5), 47.3, 47.4 (2CH2NH), 61.5 (CH3CH2), 63.2 (C7O, 65.7 (OCH2), 116.2 (C6'), 120.2
(C2.), 122.3 (C40, 131.6 (C3.), 134.4 (C50, 158.0 (Cr), 160.4 (C3), 166.6 (COO), 173.8 (C1).
Analysis calculated for C2_iH?jShOs.HC1.3HzO:
C5 51.06; H, 7.35; N, 8.51 Found: C5 51.36; H5 7.42; N5 8.68
[00157] Example 47. 2-[4-[2-(5, 6, 7, 8-Tetrahydronaphth-l-yloxy)ethylamino]butyl]-l, 3- dioxoperhydropyrrolofl, 2 -cj imidazole, (bb).
Figure imgf000043_0001
Chromatography: ethyl acetate/ethanol, 9:1. Yield: 32%-
1H-RMN TCDCl3, δ): 1.52-1.77 (m, 9H, -(CH2)4-, H7), 1.98-2.15 (m, 2H, 2H6), 2.17-2.29 (m, IH, H7), 2.64-2.78 (m, 6H, CH2NH, 2CH2Ar), 3.01 (t, J = 5.1 Hz, CH2NH), 3.17-3.29 (m, IH, H5), 3.49 (t, 2H, J = 7.1 Hz, NCH2), 3.65 (dt, IH, J = 11.2, 7.6 Hz, H5), 4.02-4.10 (m, 3H, OCH2, H7a), 6.57 (d, IH, J= 8.1 Hz, ArH), 6.62 (d, IH, J= 7.6 Hz, ArH), 7.03 (t, IH, J= 7.8 Hz, ArH). 13C-RMN CCDCl3, δ): 22.8, 23.1, 25.8, 27.0, 27.2, 27.6 (-(CH2)2-, -(CH2)4-, C6, C7), 38.8 (NCH2), 45.5 (C5), 48.8, 49.1 (2CH2NH), 63.3 (C7a), 67.1 (OCH2), 107.9 (C2'), 121.6 (C4.), 125.6 (C3.), 126.1 (C8.a), 138.6 (C4'a), 156.5 (C1-), 160.8 (C3), 173.9 (C1).
Figure imgf000043_0002
C, 55.51; H, 8.05; N, 8.83 Found: C, 55.18; H, 7.77; N, 8.90
[00158] Example 48. 2-[4-[2-(2, 3-Dimethylphenoxy)ethylamino]butyl]-l, 3- dioxoperhydropyrrolo[l, 2-cJ imidazole, (cc).
Figure imgf000043_0003
Chromatography: ethyl acetate/methanol, 9:1. Yield: 30%- H-RMN TCDCl3, S): 1.53-1.73 (m, 5H, -(CH2)2-, H7), 1.98-2.23 (m, 3H5 2H6, H7), 2.14 (s, 3H, CH3), 2.27 (s, 3H5 CH3), 2.72 (t, 2H5 J = 6.8 Hz, CH2NH)5 3.02 (t, 2H5 J = 4.9 Hz5 CH2NH)5 3.17-3.29 (m, IH5 H5), 3.49 (t, 2H5 J= 6.8 Hz5 NCH2), 3.67 (dt, IH5 J= 11.2, 7.6 Hz5 H5), 4.02- 4.10 (m, 3H, OCH2, H7a), 6.70 (d, IH, J= 8.3 Hz, ArH)5 6.77 (d, IH5 J= 7.6 Hz, ArH)5 7.03 (t, IH5 J= 7.8 Hz, ArH).
'3C-RMN (CDCl3, δ): 11.7, 20.1 (2CH3), 25.9, 27.0, 27.2, 27.6 (-(CHj)2-, C6, C7), 38.8 (NCH2), 45.6 (C5), 49.0, 49.2 (2CH2NH)5 63.4 (C7a), 67.7 (OCH2), 109.2 (C6'), 122.4 (C4-), 125.8 (C5.), 137.9, 138.1 (C2-, C3-), 155.9 (Cr), 160.5 (C3), 173.9 (C1).
Figure imgf000044_0001
C5 53.38; H5 8.06; N, 9.34 Found: C5 52.99; H, 8.15; N, 9.74
[00159] Example 49. 2-[4-[(Chroman-2-yl)methylamino]butyl]-l,4-dioxoρerhydropyrido[l52- ajpyrazine, (dd).
Figure imgf000044_0002
Chromatography: ethyl acetate.
Yield: 35%.
1H-RMN fCDCk S): 1.40-1.68 (m, 8H, -(CHz)2-, 2H7, H8ax, H9ax), 1.96-2.07 (m, 3H, H8eC5 2H3.)5
2.33-2.58 (m, 2H, H9ec, H63x), 2.70-2.96 (m, 6H, 2NHCH2, 2H4-), 3.41 (t, 2H5 J= 6.6 Hz5 NCH2),
3.82 (d, 2H, J= 11.7 Hz, H9a), 3.96 (s, 2H, 2H3), 4.14-4.19 (m, IH, H2-), 4.67 (d, IH, J = 12.9
Hz, H6ec), 6.83 (t, 2H, J= 1.6 Hz, H6., H8-), 7.02-7.11 (m, 2H5 H5-, H7-).
13C-RMN CCDCl1. δ): 24.2, 24.4, 24.6, 25.6, 26.9 (-(CH2)2-, C7, C8, C3-, C4-), 31.3 (C9), 42.4
(C6), 45.7 (NCH2), 49.2, 49.3 (NHCH2, C3), 54.0 (NHCH2), 59.2 (C9a), 74.8 (C2-), 116.8 (C8.),
120.2 (C6.), 122.0 (C48-), 127.2 (C7-), 129.5 (C5-), 154.4 (C86-). 161.3 (C4), 164.9 (C1).
Analysis calculated for C22HnN3O1-HCl-H2O:
C5 60.06; H, 7.79; N, 9.55 Found: C5 60.23; H5 7.43; N5 9.22 [00160] Example 50. (Z)-2-[4-[(Chroman-2-yl)methylamino]but-2-enyl]-l54- dioxoperhydropyrrolo[l 52-c]imidazole, (ee).
Figure imgf000045_0001
Chromatography: ethyl acetate.
Yield: 38%.
1H-RMN (CDCk S): 1.59-2.32 (m, 6H5 2H6, 2H7, 2H3.), 2.70-2.86 (m, 4H5 CH2NH5 2H4.), 3.24
(ddd, IH, J= 11.2, 7.6, 5.4 Hz5 H5), 3.50 (d, 2H5 J= 6.6 Hz5 CH2NH)5 3.68 (dt, IH5 J= 11.2, 7.8
Hz, H5), 4.03-4.19 (m, 4H5 NCH2, H7a, H2-), 5.47-5.57 (m5 IH5 CH), 5.70-5.82 (m5 IH5 CH)5
6.79-6.86 (m, 2H, H6', H8-), 7.02-7.07 (m5 2H, H5-, H7-).
13C-RMN (CDCk δ): 24.5, 25.4, 26.8, 27.3 (C3., C4', C6, C7), 35.7 (NCH2), 45.3, 45.9 (C5,
CH2NH), 53.6 (CH2NH)5 63.2 (C7a), 75.0 (C2), 116.6 (C8-), 119.9 (C6-), 121.8 (C4-a), 124.3 (CH),
127.0 (C7.), 129.3 (C5.), 132.7 (CH), 155.8 (C8.a), 156.2 (C3), 172.4 (C1).
Analysis calculated for C2OH2SN1Or HCHH2O:
C, 51.78; H, 7.39; N, 9.06 Found: C5 51.42; H, 7.02; N5 8.75
[00161] Example 51. 3-[4-[2-(o-Ethoxyphenoxy)ethylamino]butyl]-2,4-dioxothiazolidine, (ff).
Figure imgf000045_0002
Chromatography: ethyl acetate/ethanol, 9:1.
Yield: 55%; m.p. 70-74 0C.
1H-RMN (CDCl3, δ): 1.44 (t, 3H, J= 7.0 Hz5 CH3), 1.57-1.74 (m, 4H, -(CH2)2-)5 2.83 (t, 2H5 J=
7.0 Hz5 CH2NH), 3.13 (t, 2H, J= 5.0 Hz, CH2NH)5 3.29 (t, 2H5 J= 7.5 Hz5 NCH2), 3.96 (s, 2H,
2H5), 4.08 (q, 2H, J= 7.0 Hz, CH2CH3), 4.19 (t, 2H5 J= 5.0 Hz5 OCH2), 6.86-6.97 (m, 4H5 ArH). 13C-RMN TCDCl3, δ): 14.9 (CH3), 24.0, 25.2 (-(CHj)2-), 33.8 (C5), 41.6 (NCH2), 48.2, 48.5
(2CH2NH), 64.4 (CH2CH3), 68.3 (OCH2), 113.6, 115.1, 121.0, 121.8 (C6-, C4-, C3-, C5-), 148.3,
149.1 (Cr5 Cr)5 IyLS (C25 C4).
Analysis calculated for C17H24N2O4S1HCH^H2O:
C5 51.31; H, 6.59; N5 7.04 Found: C5 51.36; H5 7.04; N5 6.66
[00162] Example 52. 3~[6-[2-(o-Ethoxyphenoxy)ethylamino]hexyl]-2,4-dioxothiazolidine, (gg).
Figure imgf000046_0001
Chromatography: ethyl acetate/ethanol, 9:1. Yield: 48%; m.p. 92-94 0C.
1H-RMN TCDCl3, δ): 1.18-1.66 (m, HH5 -(CH2)4-5 CH3), 2.73 (t, 2H, J= 7.1 Hz, CH2NH)5 3.06 (t, 2H5 J = 5.3 Hz, CH2NH), 3.46 (br s, IH5 NH)5 3.60 (t, 2H5 J = 7.4 Hz, NCH2), 3.92 (s, 2H, 2H5), 4.06 (q, 2H5 J= 7.0 Hz5 CH2CH3), 4.15 (t, 2H5 J= 5.0 Hz5 OCH2), 6.81-6.97 (m, 4H, ArH). 13C-RMN CCDCl3, δ): 14.8 (CH3), 26.3, 26.6, 27.3, 29.1 (-(CHj)4-), 33.6 (C5), 41.9 (NCH2), 48.4, 49.2 (2CH2NH)5 64.4 (CH2CH3), 68.3 (OCH2), 113.6, 115.I5 121.O5 121.8 (C6-, C4-, C3-, C5.), 148.3, 149.1 (C1-, C2-), 171.3 (C2, C4). Analysis calculated for CiQH2SN2O4S-HCl-H2O:
C, 52.46; H5 7.18; N5 6.44 Found: C, 52.64; H5 6.99; N, 6.45
[00163]
Example 53. 3-[8-[2-(o-Ethoxyphenoxy)ethylamino]octyl]-2,4-dioxothiazolidine, (hh).
Figure imgf000047_0001
Chromatography: ethyl acetate/ethanol, 9:1. Yield: 48%; m.p. 105-108 0C.
1H-RMN CCDCl3, δ): 1.07-1.54 (m, 15H3 -(CH2V, CH3), 2.73 (t, 2H, J= 7.4 Hz, CH2NH), 3.04 (t, 2H, J = 5.2 Hz, CH2NH), 3.44 (br s, IH5 NH), 3.54 (t, 2H, J = 7.4 Hz, NCH2), 3.87 (s, 2H, 2H5), 4.01 (q, 2H, J= 7.0 Hz, CH2CH3), 4.13 (t, 2H, J- 5.2 Hz, OCH2), 6.76-6.92 (m, 4H, ArH). '3C-RMN CCDCl3, δ): 14.7 (CH3), 26.4, 26.8, 27.3, 28.7, 28.8, 29.0 (-(CH2)6-), 33.5 (C5), 41.9 (NCH2), 48.1, 49.1 (2CH2NH), 64.3 (CH2CH3), 68.0 (OCH2), 113.5, 115.1, 120.9, 121.9 (C6-, C4-, C3-, C5.), 148.3, 149.2 (C1-, C2-), 171.3 (C2, C4). Analysis calculated for C21H32N2O4S1HCH^H2O:
C, 55.55; H, 7.55; N, 6.17 Found: C, 55.78; H, 7.34; N, 6.04
[00164] Example 54. 2-[4-[2-(o-Ethoxyphenoxy)ethylamino]butyl]-l,3- dioxoperhydroimidazo[l,5-a]pyridine, (ii).
Figure imgf000047_0002
Chromatography: ethyl acetate/ethanol, 7:3.
Yield: 31%.
1H-RMN CCDCl3, δ): 1.28-1.74 (m, HH5 -(CH2),-, CH3, H6ax, H7ax, H8ax, H6ec), 1.94-2.03 (m, IH5
H760), 2.14-2.21 Cm5 IH, H8ec), 2.73-2.87 (m, 3H5 H5aX5 CH2NH)5 3.11 (t, 2H5 J = 5.2 Hz, CH2NH), 3.51 (t, 2H, J = 6.5 Hz, NCH2), 3.69-3.79 (m, IH, H8a), 4.00-4.12 (m, 3H, CH2CH3,
H5ec), 4.18 (t, 2H5 J= 5.1 Hz, OCH2), 6.77-6.87 (m, 4H3 ArH).
13C-RMN TCDCl3, δ): 15.1 (CH3), 22.9, 25.1, 26.0, 27.9, 29.8 (-(CH2)2-, C6, C7, C8), 38.3
(NCH2), 39.4 (C5), 48.3, 48.8 (2CH2NH), 57.5 (C8O, 64.6, 68.1 (CH2CH3, OCH2), 113.7, 115.4,
121.2, 122.2 (C6., C4-, C3-, C5-), 148.3, 149.3 (C1-, C2-), 154.1 (C3), 173.4 (C1).
Analysis calculated for C21H11N1O4-HCl-H2O:
C, 56.81; H, 7.72; N, 9.46 Found: C, 57.38; H, 8.00; N, 9.02
[00165] Example 54. 2-[6-[2-(o-Ethoxyphenoxy)ethylamino]hexyl]-l,3- dioxoperhydwimidazofl, 5-aJpyridine, (jj).
Figure imgf000048_0001
Chromatography: ethyl acetate/ethanol, 8:2.
Yield: 49%.
1H-RMN (CDCl3, δ): 1.23-1.63 (m, 14H, -(CH2)4-, CH3, H6ax, H7ax, H8ax), 1.71-1.75 (m, IH,
H6ec), 1.96-2.01 (m, IH, H7ec), 2.18-2.22 (m, IH, H8ec), 2.70 (t, 2H, J = 7.3 Hz, CH2NH), 2.77-
2.87 (m, IH, H5ax), 3.03 (t, 2H, J = 5.3 Hz, CH2NH), 3.48 (t, 2H, J= 7.3 Hz, NCH2), 3.73 (dd,
IH, J = 11.9, 4.1 Hz, H8O, 4.07 (q, 2H5 J= 7.0 Hz, CH2CH3), 4.14 (t, 2H, J = 5.3 Hz, OCH2),
4.18-4.19 (m, IH5 H5ec)5 6.86-7.26 (m, 4H5 ArH).
13C-RMN (CDCl3. δ): 14.7 (CH3), 22.6, 24.8, 26.3, 26.6, 27.6, 27.0, 29.3 (-(CBLj)4-, C6, C7, C8),
38.3 (NCH2), 39.1 (C5), 48.4, 49.3 (2CH2NH)5 57.1 (C8a)5 64.3, 68.4 (CH2CH3, OCH2), 113.5,
114.9, 120.9, 121.6 (C6-, C4', C3', C5'), 148.3, 148.7 (C1-, C2-), 154.4 (C3), 173.1 (C1).
Figure imgf000048_0002
C, 53.43; H, 8.38; N, 8.13 Found: C, 53.18; H, 7.82; N, 7.60 [00166] Example 55. 2-[4-[(2-Quinolyl)methylamino]butyl]-l,S-dioxoperhydroimidazo[l,5- ajpyridine, (kk).
Figure imgf000049_0001
Chromatography: ethyl acetate/ethanol, 7:3.
Yield: 45%; m.p. 206-208 0C.
1H-RMN (CDCL, δ): 1.21-1.77 (m, 8H, -(CH2)2-, H6ax, H7ax, H8aXj H6ec)3 1.95-1.99 (m, IH, H7ec),
2.16-2.22 (m, IH, H8ec), 2.76-2.86 (m, 3H, H5ax, CH2NH), 3.24 (br s, IH, NH), 3.53 (t, 2H, J =
6.9 Hz, NCH2), 3.73 (dd, IH5 J= 12.1, 4.4 Hz, H8a), 4.12-4.18 (m, 3H, CH2Ar, H5ec), 7.46 (d,
IH, J = 8.4 Hz, H3-), 7.44-7.54 (m, IH, H6O, 7.67-7.73 (m, IH, H7-), 7.81 (dd, IH, J= 8.2, 1.1
Hz, H5'), 8.06 (d, J= 8.5 Hz, IH, H4-), 8.13 (d, IH, J= 8.5 Hz, H8-).
13C-RMN rCDCL. δ): 22.7, 24.9, 25.9, 26.3, 27.8 (-(CH2)2-, C6, C7, C8), 38.2 (NCH2), 39.3 (C5),
48.7 (CH2NH), 54.6 (CH2Ar), 57.3 (C8a), 120.4 (C3O, 126.3 (C6O, 127.3, 127.5 (C5-, C8O, 128.9.
129.6 (C4-, C70, 136.7 (C4.a), 147.5 (C8.a), 154.5 (C20, 158.0 (C3), 173.2 (C1).
Figure imgf000049_0002
C, 56.25; H, 6.52; N, 12.50 Found: C, 56.66; H, 6.53; N, 11.94
[00167] Example 56. 2-[6-[(2:Quinolyl)methylamino]hexyl]-l, 3-dioxoperhydroimidazo[l, 5- a] pyridine (U).
Figure imgf000049_0003
Chromatography: ethyl acetate/methanol, 7:3. Yield: 30%; m.p. 176-188 0C. H-RMN (CDCl3, δ): 1.19-1.74 (m, 12H, -(CH2)4-, H6ax, H7aX5 H83x, H6ec), 1.95-2.00 (m, IH5 H7eo), 2.17-2.22 (m, IH, H8ec), 2.76 (t, 2H, J= 7.1 Hz, CH2NH), 2.81-2.86 (m, IH, H53x), 3.06 (br s, IH, NH), 3.48 (t, 2H, J = 7.3 Hz, NCH2), 3.72 (dd, IH, J= 11.9, 4.3 Hz, H8a), 4.14-4.19 (m, 3H, CH2Ar, H5ec), 7.46 (d, IH, J= 8.5 Hz, H3'), 7.49-7.55 (m, IH, H6>), 7.68-7.74 (m, IH, H7'), 7.81 (dd, IH, J= 8.2, 1.1 Hz, H5O, 8.06 (d, J= 8.5 Hz, IH, U4-), 8.13 (d, IH5 J= 8.4 Hz, H8-). 13C-RMN (CDCl3, S): 22.7, 24.9, 26.3, 26.6, 27.8, 28.0, 29.0 (-(CH2)4-5 C6, C7, C8), 38.4 (NCH2), 39.2 (C5), 49.2 (CH2NH), 54.6 (CH2Ar), 57.2 (C8a), 120.3 (C3-), 126.2 (C6-), 127.3, 127.5 (C5-, C8O, 128.9, 129.6 (C4-, C7-), 136.7 (C4-O, 147.5 (C80, 154.5 (C2-), 158.2 (C3), 173.2 (C1).
Figure imgf000050_0001
C, 55.87; H, 7.13; N, 11.33 Found: C, 55.77; H, 7.09; N, 10.77
[00168] Example 57. 2-[3-[[(Chroman-2-yl)methylamino]methyl]benzyl]- 1 ,3- dioxoperhydropyrrolo[l ,2-c] imidazole, Q).
Figure imgf000050_0002
Chromatography: ethyl acetate.
Yield: 40%.
1H-RMN (CDCk δ): 1.58-2.26 (m, 6H, 2H6, 2H7, 2H3.), 2.69-2.96 (m, 4H, CH2NH, 2H4.), 3.23
(ddd, IH5 J = 12.5, 7.6, 5.4 Hz, H5), 3.69 (dt, IH, J= 11.2, 7.6 Hz, H5), 3.85 (s, 2H, CH2Ar),
4.04-4.22 (m, 2H5 H7a, H2.), 4.62 (s, 2H, NCH2), 6.82 (t, 2H5 J= 6.8 Hz, H6', H8'), 7.02-7.11 (m,
2H5 H5., H7-), 7.26-7.34 (m, 4H5 ArH).
13C-RMN (CDCk S): 24.7 (C3.), 25.6 (C4.), 27.0 (C6), 27.5 (C7), 42.5 (NCH2), 45.5 (C5), 53.5,
53.6 (2CH2NH)5 63.4 (C7a), 75.2 (C2), 116.8 (C8.), 120.2 (C6-), 122.0 (C4.a), 127.0, 127.2, 127.7,
128.2, 128.8 (C7., phenyl), 129.5 (C5-), 136.1, 140.7 (phenyl), 154.7 (C8-O, 160.5 (C3), 173.6
(C1).
Analysis calculated for CT4H27N3O1-HCI-SH2O:
C, 58.12; H5 6.91; N5 8.47 Found: C, 58.19; H5 6.51; N, 8.07 [00169] Example 58. 2-[4-[[(Chroman-2-yl)methylamino]methyl]benzyl]-l53- dioxoperhydropyrrolo[l,2-c]iniidazole, (k).
Figure imgf000051_0001
Chromatography: ethyl acetate.
Yield: 44%.
1H-RMN TCDCl2, δ): 1.57-2.29 (m, 6H, 2H6, 2H7, 2H3.), 2.75-2.95 (m, 4H, CH2NH, 2H4.), 3.24
(ddd, IH, J = 12.4, 7.3, 5.4 Hz, H5), 3.69 (dt, IH, J = 11.2, 7.6 Hz, H5), 3.84 (s, 2H, CH2Ar),
4.04-4.22 (m, 2H, H7a, H2.), 4.61 (s, 2H, NCH2), 6.82 (t, 2H, J= 8.1 Hz, H6-, H8-), 7.01-7.11 (m,
2H, H5., Hy)5 7.28-7.38 (m, 4H, ArH).
Analysis calculated for C24H17N3OrHO^H2O:
C, 60.31 ; H, 6.75; N, 8.79 Found: C3 60.71; H, 6.40; N, 8.52
Example 59
Determination of the Receptor Affinity
[00170] Biochemical studies to determine the affinity of synthesized compounds have been carried out by radioligand displacement experiments, experiments being carried out to determine the receptor affinity for the 5-HTi A, 5-HT2A, 5-HT3, 5-HT4, 5-HT7, αi and D2 receptors. [00171] The conditions for each receptor studied is summarized in Table 1 below, while the receptor affinity data is summarized in Table 2 below.
Figure imgf000052_0001
Incubation medium:
1. MgSO4 5 raM and EDTA 0.5 mM in Tris-HCl 50 mM, pH 7.4
2. MgSO4 10 mM, EDTA 0.5 mM, ascorbic acid 0.1% and pargyline 10 μM in Tris-HCl 50 mM, pH 7.4
3. Pargyline 10 μM, ascorbic acid 0.6 mM and CaCl2 5 mM in Tris-HCl 50 mM, pH 7.4
4. HEPES 50 mM, pH 7.4
5. CaCl24 mM, ascorbic acid 1 mg/mL, pargyline 0.01 mM and (-)pindolol 3 μM in Tris- HCl 50 mM, pH 7.4
6. MgCl2 2.5 mM in Tris-HCl 50 mM, pH 7.4
7. NaCl 120 mM, KCl 5 mM, CaCl2 1 mM and ascorbic acid 5.7 mM in Tris-HCl 50 mM, pH 7.4 Table 2. Receptor affinity data obtained.
Figure imgf000053_0001
Example 60
In Vitro Functional Characterization
[00172] The functional character of the new compounds was initially determined by studying their effect on adenylate cyclase in He-La cells transfected with the 5-human HT1A receptor, measuring their inhibiting effect on the stimulation of the enzyme induced by forskolin (Table 3 below). The compounds included in this table behaved in all cases as pure agonists, so as to reach values close to 100% of inhibition of the activation induced by forskolin. The 50 effective concentration (CE50), a concentration that produces 50% of the inhibition of the increase in enzymatic activity by forskolin, was in the nanomolar range. The action of the new compounds in this test was mediated in by the 5-HT1A receptor as can be deduced from the blocking of the effect of all compounds studied by the selective 5-HT1A antagonist WAY-100635 (10"8 M).
Table 3. Test on adenylate cyclase m He-La cells.
Compound CE50 (nM) % Maximum Inhibition
1 16.3 94.6
2 18.9 94.5
3 31.5 89.3
4 11.6 89.6
12 76.2 87.4
[00173] The in vitro agonist character of the new compounds was also evaluated in some cases by the fixation test of [35S]-GTPyS to coronal sections of rat brain. In this test, the results obtained with compounds no. 1 and no. 3, at a concentration of 10 μM, were especially similar to those obtained with the 5-HT1A, 8-OH-DPAT agonist prototype. In the autoradiograms, an increase in intensity of the signal in the hippocampus (CAl, CA2, CA3 and dentate gyrus), thalamic nuclei, amygdaloid complex, cortex and in the mediobasal hypothalamus nuclei was observed. The increase in intensity of the marking in these cerebral areas was reduced until reaching control levels when the incubation was carried out in the presence of both the molecule under study and the selective 5-HT1A antagonist WAY-100635 (1 μM). [00174] The five compounds included in Table 3 likewise produced hyperpolarization of the potential of the neurons of the hippocampal area CAl. By carrying out dose-effect curves, it was observed that the action of compounds no. 1 and no. 2 in this test was indistinguishable in potency to that of the 5-HT1A, 8-OH-DPAT type agonist.
Example 61
In Vivo Functional Characterization
[00175] All compounds previously characterized in vitro as 5-HT1A agonists (Table 3) were delivered by subcutaneous injection to mice in order to quantify the hypothermia associated to stimulation of this serotonergic receptor subtype. In all cases, a reduction in the rectal temperature of the mouse was observed of a variable duration ranging from between 30 and 120 minutes. In Table 4 below, the minimum effective doses for each compound studied and the degree of hypothermia reached at this dose are shown. The maximum hypothermic effect was reached wish doses 4-8 times higher than those indicated in this Table 4, in some cases reaching temperature decreases of 4°C.
Table 4. Mouse hypothermia test
Figure imgf000055_0001
Example 62
Determination of the In Vitro Neuroprotective Action
[00176] The neuroprotective effect of the compounds considered was studied in experimental models in vitro, using primary cultures of rat hippocampus exposed to serum deprivation, to a toxic concentration of glutamate, or incubated in conditions of hypoxia and absence of glucose. [00177] In the model of apoptotic neuronal death induced by incubation of mixed cultures of neurons and glial cells for 24 hours in a medium without serum, the neuroprotective effect of compound no. 1 is to be highlighted, with which a concentration-dependent effect was observed which was even higher (more than 40% protection) than that obtained with the 8-OH-DPAT agonist. Other compounds were also shown to be effective such as no. 4 and no. 12, although in both cases the degree of protection was somewhat below at the various concentrations used in the tests.
[00178] In the model of excitotoxic neuronal death due to exposure of the neuronal cultures to 1 mM glutamate, compound 1 was that which most effectively prevented (37%) the associated damage. Likewise, this compound showed a neuroprotective effect (>20%) in the model of neuronal death due to exposure of the cultures to a transient hypoxia situation in the absence of glucose and subsequent incubation in a 5% CO2 atmosphere.
Example 63
Determination of the In Vivo Neuroprotective Action
[00179] The in vivo neuroprotective action was evaluated both in the transient global ischemia model in gerbils and in the permanent focal ischemia model in rats.
[00180] In the transient ischemia model in gerbils induced by temporary occlusion of both carotid arteries, the delivery of compounds no. 1 and no. 12, 30 minutes before the induction of the ischemia, and 24 and 48 hours afterwards, significantly prevented the injury induced by the ischemic process in the hippocampal area CAl, which was evaluated by Nissl stain. The neuroprotective effect was dose-dependent, between 1-5 mg/kg by subcutaneous injection, reaching, with compound no. 1, a degree of total protection of the injury in approximately half the animals at a dose of 5 mg/kg. This protection was accompanied by a hypothermic effect, likewise dependent on the dose delivered.
[00181] In the focal ischemia model due to permanent occlusion of the middle cerebral artery in the rat, the delivery of compound no. 1 by intravenous injection, 45 minutes before and 45 minutes after the occlusion, significantly reduced the volume of the infarcted area. Specifically, at a dose of 2 mg/kg, the infarction volume was reduced by more than 25%.
Example 64 Formalin Pain Assay
[00182] Groups of 10 CD-I (CrI.) derived male mice weighing 24 ± 2g were used. Test substances and vehicle (0.2% HPMC/0.9% NaCl) were administered by intraperitoneal injection 15 minutes before subplantar injection of formalin (0.02 ml, 2% solution). Reduction of the formalin-induced hind paw licking time recorded at 5-minute intervals during the following 0- to 35-minute period after formalin injection. Reduction in licking time by 50 percent or more (>50%) indicates significant analgesic activity. Statistical analysis was performed by using Oneway ANOVA followed by Dunnett's test to compare the test compound-treated groups and vehicle control. Significance is considered at P < 0.05 level. Acute toxic symptoms and autonomic effects were observed before and after formalin injection. Hunskaar, S., Fasmer O.B. and Hole, K. Formalin test in mice, a useful technique for evaluating mild analgesics. J. Neuroscience Meth. 14: 69-76, 1985. [00183] Results of formalin pain assay are displayed below:
A means pain reduction of >75%
B means pain reduction of about 40-75%
C means pain reduction of about 10-40%
Figure imgf000057_0001
Figure imgf000058_0001
Figure imgf000059_0001
deduction of pain summarized in the period of 10 to 35 minutes following formalin injection
[00184] Further results are displayed below:
Figure imgf000059_0002
Figure imgf000060_0001
Figure imgf000061_0001
Figure imgf000061_0002
Figure imgf000062_0001
Figure imgf000063_0001
Figure imgf000063_0002
Figure imgf000064_0001
Figure imgf000064_0002
about 40-75%; C means pain
Figure imgf000065_0001
10%; - means not determined. * * * * * * * * * *
[00185] The words "comprise", "comprises", and "comprising" are to be interpreted inclusively rather than exclusively.
[00186] Ail references cited above {e.g., patents, patent application publications, scientific articles) are incorporated by reference in their entirety into this patent application. Any discussion of those references is intended merely to summarize statements made by their authors. No admission is made that any reference (or a portion of any reference) is relevant prior art. Applicants reserve the right to challenge the accuracy and pertinence of the cited references.

Claims

WE CLAIM:
1. A method for preventing and/or treating a condition selected from the group consisting of pain and migraine in a subject in need of such prevention and/or treatment, wherein: the method comprises administering to the subject a compound, a stereochemical isomer of the compound, or a hydrate, solvate, or pharmaceutically acceptable salt of the compound or isomer, wherein: the compound corresponds in structure to Formula I:
Figure imgf000067_0001
R1 is selected from the group consisting of H, -(CHa)3-, -(CHa)4-, -CH2-S-CH2-, and -S-CH2-CH2-;
R2 is selected from the group consisting of N and S; n is zero or 1 ;
Z is selected from the group consisting of C2-C10-alkylene, C2-C10-alkenylene, and C2-C1 o-alkynylene;
R3 is selected from the group consisting of H, Ci-Cio-alkyl, aryl, and arylalkyl; m is zero, 1, or 2;
R4 is selected from the group consisting of -O- and -CH2-;
R5 is selected from the group consisting of
Figure imgf000067_0002
Figure imgf000068_0001
Figure imgf000068_0003
Figure imgf000068_0002
Figure imgf000068_0004
Figure imgf000068_0005
each R6 is independently selected from the group consisting of H, Cj-Cs-alkyl, Ci-Cs-alkoxy, OH, F5 Cl5 Br5 and I;
X is selected from the group consisting of -0-, -S-, -N(H)-, and -N(CH3)-; Y is selected from the group consisting of -O- and -N(H)-; and W is selected from the group consisting of -S- and -N(H)-.
2. The method according to Claim 15 wherein the subject is a human.
3. The method according to Claim 1 , wherein the condition comprises pain.
4. The method according to Claim 1, wherein the condition comprises migraine.
5. The method according to Claim 1, wherein an effective amount of the compound, isomer, hydrate, solvate, or salt is administered to the subject.
6. The method according to Claim 1, wherein: Z is QrQo-alkylene; and
R5 is selected from the group consisting of
Figure imgf000069_0001
7. The method according to Claim 1, wherein:
Z is butylene; and
R.5 is selected from the group consisting of
Figure imgf000069_0002
8. The method according to Claim 1, wherein R3 is H.
9. The method according to Claim 1, wherein the compound is selected from the group consisting of:
2-[4-[(Chroman-2-yl)methylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole; 2-[4- [(Chroman-2-yl)methylamine]butyl] - 1 ,3 -dioxoperhydroimidazo [ 1 ,5-b]thiazole; 2-[4-[(Chroman-2-yl)methylamine]butyl]- 1 ,3-dioxoperhydroimidazo[l ,5-c]-thiazole; 3 - [4- [(Chroman-2-yl)methylamine]butyl] -2,4-dioxothiazolidin; 3-[5-[(Chroman-2-yl)methylamine]pentyl]-254-dioxothiazolidin; 3 - [6- [(Chroman-2-yl)methylamine]hexyl] -2,4-dioxothiazolidin; 2-[4-[(Naphth-l-yl)methylamine]butyl]-l,3-dioxoperhydroρyrrolo[l,2-c]imidazole; 2-[4-[2-(Naphth-l-yl)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l52-c]imidazole;
3-[4-[2-(Naphth-l-yl)ethylamine]butyl]-2,4-dioxothiazolidin;
2-[4-[2-(Phenoxy)ethylamine]butyl]- 1 ,3-dioxoperhydropyrrolo[l ,2-c]imidazole;
3-[4-[2-(Phenoxy)ethylamine]butyi]-2,4-dioxothiazolidin;
2-[4-[2-(Naphth-l-oxy)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole; and
3-[4-[2-(Naphth-l-oxy)ethylamine]butyl]-2,4-dioxothiazolidin.
10. The method according to Claim 1, wherein m is zero; R4 is CH2; and R5 is chromanyl.
11. The method according to Claim 1 , wherein m is 2; R4 is O; and R5 is phenyl or 1- naphthyl.
12. The method according to Claim 1, wherein the compound corresponds in structure to Formula III:
Figure imgf000070_0001
wherein n is 2-7; and
A is selected from the group consisting of:
Figure imgf000070_0002
13. The method according to Claim 12, wherein A is
Figure imgf000071_0001
14. The method according to Claim 13, wherein n is 2, 3, 4, or 5.
15. The method according to Claim 12, wherein A is
Figure imgf000071_0002
16. The method according to Claim 15, wherein n is 3.
17. The method according to Claim 12, wherein the compound is selected from the group consisting of:
(±)-2- [4- [(Chroman-2-yl)methylamino]butyl]- 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c]imidazole;
(±)-2-[4-[(Chroman-2-yl)methylamino]butyl]-l,3-dioxoperhydroimidazo[l,5-&]thiazole;
(+)-2-[4-[(Chroman-2-yl)methylamino]butyl]-l,3-dioxoperhydroimidazo[l,5-c]-thiazole;
(+)-3-[4-[(Chroman-2-yl)methylamino]butyl]-2,4-dioxothiazolidine;
(±)-3-[5-[(Chroman-2-yl)methylamino]ρentyl]-2,4-dioxothiazolidine;
(±)-3-[6-[(Chroman-2-yl)methylamino]hexyl]-2,4-dioxothiazolidine;
2-[4-[(Chroman-2(i?)-yl)methylamino]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
2-[5-[(Chroman-2-yl)methylamino]pentyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
2- [6- [(Chroman-2-yl)methylamino]hexyl] - 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole;
2- [3 - [(Chroman-2-yl)methylamino]propyl]- 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole; and
2-[4-[(Chroman-2(5)-yl)methylamino]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole.
18. The method according to Claim 1, wherein the compound corresponds in structure to Formula IV:
Figure imgf000072_0001
Formula IV wherein n is 2-7; and A is selected from the group consisting of:
Figure imgf000072_0002
19. The method according to Claim 18, wherein A is
Figure imgf000072_0003
20. The method according to Claim 19, wherein n is 3 or 7.
21. The method according to Claim 20, wherein R6 is Ci-C4-alkoxy in ortho position of the phenyl ring.
22. The method according to Claim 18, wherein A is
Figure imgf000073_0001
23. The method according to Claim 22, wherein n is 3.
24. The method according to Claim 22, wherein R6 is Cj-C4-alkoxy in ortho position of the phenyl ring.
25. The method according to Claim 18, wherein the compound is selected from the group consisting of:
2-[4-[2-(Phenoxy)ethylamine]butyl]-l,3-dioxoperhydropyrrolo[l,2-c]imidazole;
3-[4-[2-(Phenoxy)ethylamine]butyl]-2,4-dioxothiazolidin;
2- [4- [2-(o-Methoxyphenoxy)ethylamino]butyl]- 1 ,3 -dioxoperhydropyrrolo [ 1 ,2-c] imidazole;
2-[4-[2-(o-Ethoxyphenoxy)ethylamino]butyl]-l,3-dioxoperhydropyrrolo[l32-c]imidazole;
2-[A- [2-(o-Isopropoxyphenoxy)ethylamino] butyl] -1,3 -dioxoperhydropyrrolo [ 1 ,2-c]
3-[4-[2-(o-Ethoxyphenoxy)ethylamino]butyl]-2,4-dioxothiazolidine;
3-[6-[2-(o-Ethoxyphenoxy)ethylamino]hexyl]-2,4-dioxothiazolidine;
3-[8-[2-(o-Ethoxyphenoxy)ethylamino]octyl]-2,4-dioxothiazolidine;
2-[4-[2-(o-Ethoxyphenoxy)ethylamino]butyl]-lJ3-dioxoperhydroimidazo[l,5-α]pyridine; and
2-[6-[2-(o-Ethoxyphenoxy)ethylamino]hexyl]-l,3-dioxoperhydroimidazo[l,5-α]pyridine.
26. The method according to Claim 1 , wherein the compound corresponds in structure to Formula V:
Figure imgf000074_0001
Formula V wherein n is 2-7; and A is selected from the group consisting of:
Figure imgf000074_0002
27. The method according to Claim 26, wherein A is
Figure imgf000074_0003
28. The method according to Claim 26, wherein n is 3.
29. The method according to Claim 26, wherein the compound is 2-[4-[2-(Naphth~ I -oxy)ethylamine]butyl] - 1 ,3 -dioxoperhydropyrrolo [1 ,2-c]imidazole or 3-[4-[2-(Naphth-l-oxy)ethylamine]butyl]-254-dioxothiazolidin.
30. The method according to Claim 1, wherein the pain is chronic pain.
31. The method according to Claim 30, wherein the pain is chronic inflammatory and/or chronic neuropathic pain.
PCT/IB2007/002194 2006-07-31 2007-07-31 Use of diaza- and thiaza-cycloalkanediones for preventing and/or treating pain and /or migraine WO2008015538A2 (en)

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Citations (3)

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WO1999029687A1 (en) * 1997-12-05 1999-06-17 Janssen Pharmaceutica N.V. (benzodioxan, benzofuran or benzopyran) derivatives having fundic relaxation properties
EP1544201A1 (en) * 2002-07-31 2005-06-22 Cepa Schwarz Pharma s.l. Novel derivatives of cycloalcanodiones, method for the production thereof and their pharmacological applications
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Publication number Priority date Publication date Assignee Title
WO1999029687A1 (en) * 1997-12-05 1999-06-17 Janssen Pharmaceutica N.V. (benzodioxan, benzofuran or benzopyran) derivatives having fundic relaxation properties
EP1544201A1 (en) * 2002-07-31 2005-06-22 Cepa Schwarz Pharma s.l. Novel derivatives of cycloalcanodiones, method for the production thereof and their pharmacological applications
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Title
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