WO2023056936A1 - 一种核苷酸衍生物及其药物组合物和用途 - Google Patents

一种核苷酸衍生物及其药物组合物和用途 Download PDF

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WO2023056936A1
WO2023056936A1 PCT/CN2022/123814 CN2022123814W WO2023056936A1 WO 2023056936 A1 WO2023056936 A1 WO 2023056936A1 CN 2022123814 W CN2022123814 W CN 2022123814W WO 2023056936 A1 WO2023056936 A1 WO 2023056936A1
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compound
aromatic
alkyl
following groups
group
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French (fr)
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张哲峰
侯雯
李应茹
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南京知和医药科技有限公司
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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
    • A61K31/70Carbohydrates; Sugars; Derivatives thereof
    • A61K31/7042Compounds having saccharide radicals and heterocyclic rings
    • A61K31/7052Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides
    • A61K31/706Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides containing six-membered rings with nitrogen as a ring hetero atom
    • A61K31/7064Compounds having saccharide radicals and heterocyclic rings having nitrogen as a ring hetero atom, e.g. nucleosides, nucleotides containing six-membered rings with nitrogen as a ring hetero atom containing condensed or non-condensed pyrimidines
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • A61P31/14Antivirals for RNA viruses
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic System
    • C07F9/02Phosphorus compounds
    • C07F9/547Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
    • C07F9/6561Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom containing systems of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring or ring system, with or without other non-condensed hetero rings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Definitions

  • the present invention relates to but not limited to the technical field of medicinal chemistry, especially a nucleotide derivative and its pharmaceutical composition and application.
  • the solubility of the compound is relatively poor, resulting in low bioavailability, large dosage, and nucleoside compounds have relatively large side effects, and the field still needs nucleotide derivatives with new structures.
  • the applicant is committed to the structural improvement of the above-mentioned nucleotide derivatives, expecting to improve the bioavailability of the compound or the ability to penetrate cells, improve its physical and chemical properties to meet various delivery methods, and further reduce the dose and reduce side effects.
  • the present inventors have developed a nucleotide derivative which has an antiviral effect.
  • R 01 is hydrogen or cyano
  • R 02 is hydrogen or R 03 is hydrogen or R 04 is hydrogen or fluorine
  • R 05 is hydrogen or azide
  • R a and R b are each independently H, or are selected from the following groups: alkylcarbonyl, alkenylcarbonyl, alkynylcarbonyl, cycloalkylcarbonyl, non-aromatic cycloalkenylcarbonyl, arylcarbonyl, or heteroaryl carbonyl;
  • R 1 and R 2 are each independently hydrogen or selected from the following groups: C1-C8 alkyl, benzyl;
  • Y1 and Y3 are each independently selected from O or S; Y2 is selected from NH, O or S;
  • R3 is selected from the following groups substituted or unsubstituted by group B: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3-8 membered hetero Cycloalkyl, non-aromatic 3-8 membered heterocyclyl containing at least one double bond, aryl;
  • the group B is one or more of the following groups: hydroxyl, amino, mercapto, nitro, halogen, carboxyl, aldehyde, alkylcarbonyloxy, aminocarbonyl, guanidine,
  • R 4 and R 5 are each independently hydrogen or selected from the following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3- 8-membered heterocycloalkyl, non-aromatic 3-8-membered heterocyclyl containing at least one double bond, C6-C20 arylalkyl; or R 4 and R 5 are connected to form a ring; R 6 is selected from C1- C20 alkyl or hydrogen; A - selected from common organic or inorganic anions.
  • R 3 is selected from Substituted following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3-8 membered heterocycloalkyl, non-aromatic and containing at least A 3-8 membered heterocyclic group or aryl group with a double bond; the R 4 , R 5 , R 6 and A - are all as described above;
  • R 3 is selected from C1-C20 alkyl, C6-C20 arylalkyl or C6 substituted by group C -C20heteroarylalkyl;
  • the group C is one or more of the following groups: hydroxyl, mercapto, carboxyl, alkylcarbonyloxy, aminocarbonyl, alkoxycarbonyl, alkylthiocarbonyl.
  • R a and R b are each independently H, or selected from the following groups: alkylcarbonyl, alkenylcarbonyl, alkyneylcarbonyl, cycloalkylcarbonyl, non-aromatic cycloalkenylcarbonyl, Arylcarbonyl or heteroarylcarbonyl;
  • R 1 and R 2 are each independently hydrogen or selected from the following groups: C1-C8 alkyl, benzyl;
  • Y1 and Y3 are each independently selected from O or S; Y2 is selected from NH, O or S;
  • R3 is selected from the following groups substituted or unsubstituted by group B: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3-8 membered hetero Cycloalkyl, non-aromatic 3-8 membered heterocyclyl containing at least one double bond, aryl;
  • the group B is one or more of the following groups: hydroxyl, amino, mercapto, nitro, halogen, carboxyl, aldehyde, alkylcarbonyloxy, aminocarbonyl, guanidine,
  • R 4 and R 5 are each independently hydrogen or selected from the following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3- 8-membered heterocycloalkyl, non-aromatic 3-8-membered heterocyclyl containing at least one double bond, C6-C20 arylalkyl; or R 4 and R 5 are connected to form a ring; R 6 is selected from C1- C20 alkyl or hydrogen; A - selected from common organic or inorganic anions.
  • R 3 is selected from Substituted following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3-8 membered heterocycloalkyl, non-aromatic and containing at least A 3-8 membered heterocyclic group or aryl group with a double bond; the R 4 , R 5 , R 6 and A - are all as described above;
  • R 3 is selected from C1-C20 alkyl, C6-C20 arylalkyl or C6 substituted by group C -C20heteroarylalkyl;
  • the group C is one or more of the following groups: hydroxyl, mercapto, carboxyl, alkylcarbonyloxy, aminocarbonyl, alkoxycarbonyl, alkylthiocarbonyl.
  • nucleotide derivative provided by the present invention is represented by formula (II 0 ):
  • nucleotide derivative provided by the present invention is represented by formula (III 0 ):
  • nucleotide derivative provided by the present invention is represented by formula (IV 0 ):
  • nucleotide derivative provided by the present invention is represented by formula (I 1 ):
  • Y 1 , Y 2 and Y 3 are each independently O, N(H), or S;
  • R 3 and R 4 are each independently H, or selected from the following groups substituted or unsubstituted by one or more groups A: alkylcarbonyl, alkenylcarbonyl, alkyneylcarbonyl, cycloalkylcarbonyl, non-aromatic cycloalkenylcarbonyl, arylcarbonyl or heteroarylcarbonyl;
  • R 1 is selected from C6-C20 aryl or R 2 substituted or unsubstituted by one or more groups A;
  • Y 4 is O or S
  • R 5 and R 6 are each independently hydrogen or selected from the following groups substituted or unsubstituted by one or more groups B: C1-C8 alkyl, benzyl;
  • R 7 is selected from the following groups substituted or unsubstituted by one or more groups B: C2-C20 alkene group, C2-C20 alkyne group, non-aromatic C3-C8 cycloalkene group, 3-8 membered heterocycloalkane A group, a 3-8 membered heterocyclic group that is non-aromatic and contains at least one double bond; or, R is an alkyl group substituted by one or more groups B, or an aromatic group substituted by one or more groups B base;
  • the group A is one or more of the following groups: alkyl, cycloalkyl, alkoxy, alkylthio, alkylamino, alkylcarbonyl, aminoalkyl, hydroxyalkyl, aminoalkylcarbonyl , heterocycloalkyl, heterocycloalkylmethylene, monoalkylaminomethylene, bisalkylaminomethylene, halogen, amino, mercapto, hydroxyl, carboxyl, cyano and nitro;
  • the group B is one or more of the following groups: hydroxyl, amino, mercapto, nitro, halogen, carboxyl, aldehyde, alkanoyloxy, aminocarbonyl and guanidino.
  • nucleotide derivatives provided by the present invention are shown in formula (II1):
  • nucleotide derivative provided by the present invention is represented by formula (III 1 ):
  • nucleotide derivative provided by the present invention is represented by formula (IV 1 ):
  • nucleotide derivative provided by the present invention is represented by formula (I 2 )
  • Y 1 , Y 2 and Y 3 are each independently O or S;
  • R 1 and R 2 are each independently hydrogen or selected from the following groups: C1-C8 alkyl, benzyl;
  • R3 is selected from the following groups substituted or unsubstituted by group B: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3-8 membered hetero Cycloalkyl, non-aromatic and 3-8 membered heterocyclyl containing at least one double bond; and when Y 3 is O, R 3 is substituted by group B;
  • Group B is selected from the following structures: Wherein, R 4 and R 5 are each independently hydrogen or selected from the following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3- 8-membered heterocycloalkyl, non-aromatic 3-8-membered heterocyclyl containing at least one double bond, C5-C20 aralkyl, or R4 and R5 connected to form a ring; R6 selected from C1-C20 Alkyl or hydrogen; A - selected from common organic or inorganic anions.
  • R 4 and R 5 are each independently hydrogen or selected from the following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3- 8-membered heterocycloalkyl, non-aromatic 3-8-membered heterocyclyl containing
  • nucleotide derivative provided by the present invention is represented by formula (II 2 ):
  • nucleotide derivative provided by the present invention is represented by formula (III 2 ):
  • nucleotide derivative provided by the present invention is represented by formula (IV 2 ):
  • nucleotide derivative provided by the present invention is represented by formula (V 2 ):
  • nucleotide derivative provided by the present invention is represented by formula (VI 2 ):
  • the alkylcarbonyl group is a C1-C20 alkylcarbonyl group, including but not limited to: formyl, acetyl, propionyl, 2-methylpropionyl, butyryl, 3-methylbutanoyl Acyl.
  • the alkylcarbonyloxy group is a group in which a C1-C20 alkylcarbonyl group is connected to an oxygen atom.
  • the alkenyl carbonyl is C2-C20 alkenyl carbonyl, including but not limited to: acryloyl, 2-butenoyl, 3-butenoyl, 4-pentenoyl, 3-pentenoyl alkenoyl.
  • the alkynylcarbonyl group is a C2-C20 alkynylcarbonyl group, including but not limited to: 2-butynoyl, 2-pentynoyl, 3-pentynoyl.
  • the cycloalkylcarbonyl group may be a C3-C8 cycloalkylcarbonyl group including but not limited to: cyclopropylcarbonyl, cyclobutylcarbonyl, cyclopentylcarbonyl, cyclohexylcarbonyl, cycloheptyl carbonyl, or cyclooctylcarbonyl.
  • the non-aromatic cycloalkenylcarbonyl may include, but not limited to, cyclopentenylcarbonyl and cyclohexenylcarbonyl.
  • the arylcarbonyl group may be a C6-C20 arylcarbonyl group including but not limited to: benzoyl, naphthoyl, anthracenyl, or bibenzoyl.
  • the unspecified alkyl groups all refer to C1-C8 alkyl groups.
  • the heteroaryl group in the heteroarylcarbonyl group may be selected from the following groups: thienyl, furyl, imidazolyl, pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, Isoxazolyl, triazolyl, thiadiazolyl, oxadiazolyl, tetrazolyl, thiatriazolyl, oxatriazolyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl , tetrazinyl, purinyl, benzoxazolyl, benzofuryl, benzothiazolyl, benzothiadiazolyl, benzotriazolyl, benzimidazolyl and indolyl.
  • the C1-C8 alkyl group includes, but is not limited to: methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, neopentyl, n-hexyl, heptyl, octyl, or 2,2-diethylethyl.
  • the C1-C20 alkyl group includes straight chain or branched chain alkyl group, also includes cycloalkyl group or substituted cycloalkyl group, including but not limited to: methyl, ethyl, n-propyl Base, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, neopentyl, n-hexyl, heptyl, octyl, or 2,2-diethylethyl, Dodecyl, tetradecyl, hexadecyl, octadecyl, or 2,2-diethylethyl.
  • the C2-C20 alkynyl group includes straight-chain or branched-chain alkynyl groups, including but not limited to 1-butyn-4-yl.
  • the non-aromatic C3-C8 cycloalkene group means that the ring contains 3-8 carbon atoms, the ring includes at least one double bond, and the ring is non-aromatic.
  • the non-aromatic C3-C8 cycloalkene group may have heteroatoms on the ring, such as oxygen, sulfur, nitrogen atoms.
  • Non-aromatic C3-C8 cycloalkenyl groups include, but are not limited to: cyclohexenyl, tetrahydropyridyl.
  • the 3-8 membered heterocycloalkyl or non-aromatic 3-8 membered heterocyclyl containing at least one double bond means that the heterocycle includes at least one or more of the following atoms: Oxygen, nitrogen and sulfur; the 3-8 membered heterocycloalkyl group or non-aromatic 3-8 membered heterocyclic group containing at least one double bond includes but not limited to: oxirane group, aziridinyl, Thiiranyl, azetidinyl, oxetanyl, thietanyl, 1,2-dithietanyl, 1,3-dithietanyl, pyrrole Alkyl, dihydro-1H-pyrrolyl, dihydrofuryl, tetrahydrofuryl, dihydrothiophenyl, tetrahydrothiophenyl, imidazolidinyl, piperidinyl, piperazinyl, isoquinolyl, t
  • the aryl group is a C6-C14 aryl group, including but not limited to benzene, naphthalene, anthracene, or biphenyl.
  • the C6-C20 arylalkyl group is an arylalkyl group with a total of 6-20 carbon atoms formed after an alkyl group is substituted by an aryl group.
  • the 3-8 membered heteroaryl group may be selected from: pyrimidine, furan, thiazole, thiophene, pyridine, pyrrole, imidazole.
  • the organic anion includes but not limited to: C1-C12 alkylate, C1-C12 alkylsulfonate, C1-C12 alkylsulfate, C5-C12 arylsulfonate ion.
  • the inorganic anions include, but are not limited to: halides, perhalogenates, nitrates, sulfates, bisulfides, sulfites, phosphates and hydrogenphosphate ions, tetrafluoroborate ion.
  • the pharmaceutically acceptable salts include, but are not limited to, inorganic acid salts, such as hydrochloride, sulfate, or phosphate; organic acid salts, such as methanesulfonate, Esylate, benzenesulfonate, benzene mesylate, citrate, or acetate, etc.
  • R 01 is hydrogen; in some embodiments, R 01 is cyano.
  • R 02 is hydrogen; in some embodiments, R 02 is
  • R 03 is hydrogen; in some embodiments, R 03 is
  • R 04 is hydrogen; in some embodiments, R 04 is fluoro.
  • R 05 is hydrogen; in some embodiments, R 05 is azido.
  • R a and R b are each independently selected from hydrogen;
  • R a and R b are each independently selected from alkylcarbonyl, substituted alkylcarbonyl, Phenylcarbonyl, and substituted phenylcarbonyl, where the substituted alkylcarbonyl or substituted phenylcarbonyl refers to being substituted by one or more of the following groups: alkyl, cycloalkyl, Alkoxy, aryloxy, alkylthio, alkylamino, alkylcarbonyl, aminoalkyl, hydroxyalkyl, aminoalkylcarbonyl, heterocycloalkyl, heterocycloalkylmethylene, monoalkylaminoalkylene Methyl, bisalkylaminomethylene, halogen, amino, mercapto, hydroxyl, carboxyl, cyano and nitro; preferably, R and R are each independently selected from hydrogen, acetyl
  • R 01 is cyano
  • R 02 is R 03 is R 04 is hydrogen
  • R 05 is hydrogen
  • R 01 is cyano
  • R 01 is cyano
  • R 02 is OH
  • R 03 is OH
  • R 04 is hydrogen
  • R 05 is hydrogen
  • R 01 is hydrogen and R 02 is R 03 is hydrogen, R 04 is fluorine, R 05 is azido; preferably, R 01 is hydrogen, R 02 is hydroxyl, R 03 is hydrogen, R 04 is fluorine, R 05 is azido.
  • R 1 and R 2 are each independently hydrogen or selected from the following groups: C1-C8 alkyl, benzyl; in some specific In an embodiment, in formula (I 0 ) to formula (V 0 ), R 1 and R 2 are each independently selected from the group consisting of hydrogen, methyl, ethyl, and benzyl.
  • Y 1 , Y 2 and Y 3 are each independently O or S, at least one of which for S;
  • Y 1 is O, Y 2 and Y 3 are S;
  • Y 3 is O, Y 1 and Y 2 are S;
  • Y 3 is O, and one of Y 1 and Y 2 is S;
  • Y 3 is S, Y 1 and Y 2 are O;
  • formula (I), formula (I 0 ), formula (IV 0 ) and formula (V 0 ), Y 1 , Y 2 and Y 3 are all O;
  • Y 1 and Y 3 are each independently selected from O or S, and Y 2 is NH.
  • R 3 is selected from the following groups: C1-C20 alkyl, C2-C20 alkenyl, non-aromatic C3-C8 cycloalkene, 3 -8-membered heterocycloalkyl, non-aromatic 3-8-membered heterocyclyl containing at least one double bond, aryl; preferably, R 3 is selected from: C1-C8 alkyl, 2-ethyl-3 -Butenyl, 3-butenyl, 2-butenyl, cyclohexenylmethyl, furan-2-ylmethyl, hexahydropyran-4-ylmethyl, 2-methyl-2- Butenyl;
  • R 3 is selected from the following groups substituted by one or more groups B: C1-C20 alkyl, C2-C20 alkenyl, non Aromatic C3-C8 cycloalkene group, 3-8 membered heterocycloalkyl group, non-aromatic 3-8 membered heterocyclic group containing at least one double bond, aryl group; the group B is one of the following groups One or more kinds: hydroxyl, amino, mercapto, nitro, halogen, carboxyl, aldehyde, alkylcarbonylhydrogen, aminocarbonyl and guanidine, Preferably, R is selected from: 1,3-bis(acetoxy)-prop-2-yl, bromomethyl, bromoethyl, 4-bromophenyl, Substituted alkyl.
  • Y 1 and Y 3 are each independently selected from O or S
  • Y 2 is selected from NH, O or S
  • R 3 is selected from The following groups substituted or unsubstituted from group B: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3-8 membered heterocycloalkyl , non-aromatic and 3-8 membered heterocyclic group and aryl group containing at least one double bond
  • the group B is one or more of the following groups: hydroxyl, amino, mercapto, nitro, halogen, carboxyl , aldehyde, alkylcarbonyloxy, aminocarbonyl, guanidine,
  • R 3 is selected from Substituted following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3-8 membered heterocycloalkyl, non-aromatic and containing at least A 3-8 membered heterocyclic group, aryl group with a double bond;
  • Y 1 and Y 3 are each independently selected from O or S, and when Y 2 is NH, R 3 is selected from C1-C20 alkyl, C6-C20 aryl substituted by group C. Alkyl or C6-C20 heteroarylalkyl, the group C is one or more of the following groups: carboxyl, alkylcarbonyloxy, aminocarbonyl, alkoxycarbonyl, alkylthiocarbonyl ;
  • Y 1 and Y 3 are each independently selected from O or S, and when Y 2 is NH, R 3 is selected from C1-C20 alkyl, C6-C20 aryl substituted by carboxyl, alkoxycarbonyl Alkyl or C6-C20 heteroarylalkyl;
  • R 3 is selected from C1-C20 alkyl, C6-C20 arylalkyl or C6-C20 heteroarylalkyl, the group C is one or more of the following groups: carboxyl, alkylcarbonyloxy, aminocarbonyl, alkoxycarbonyl, alkylthiocarbonyl; preferably, When Y 1 is O, Y 1 is S, and Y 2 is NH, R 3 is selected from C1-C20 alkyl, C6-C20 arylalkyl or C6-C20 hetero that are substituted by carboxyl or alkoxycarbonyl Arylalkyl; more preferably, Y 1 is O, Y 1 is S, and Y 2 is NH, R 3 is selected from C1-C3 alkyl substituted by alkoxycarbonyl, alkyl substituted by phenyl;
  • R is selected from Substituted following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3-8 membered heterocycloalkyl, non-aromatic and containing at least A 3-8 membered heterocyclic group, aryl group with a double bond;
  • R is selected from Substituted following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3-8 membered heterocycloalkyl, non-aromatic and containing at least A 3-8 membered heterocyclic group and aryl group with a double bond.
  • R and R are each independently hydrogen
  • R 4 and R 5 are each independently selected from the following groups: C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkyne, non-aromatic C3-C8 cycloalkene, 3 -8-membered heterocycloalkyl, non-aromatic 3-8-membered heterocyclyl containing at least one double bond, C5-C20 aromatic alkyl;
  • R4 and R5 are joined to form a ring.
  • R is selected from C1-C20 alkyl; in some embodiments, R is hydrogen;
  • R4 and R5 are not hydrogen and R6 is hydrogen.
  • a - is selected from common organic anions; preferably, A - is selected from: C1-C12 alkylate, C1-C12 alkylsulfonate, C1-C12 alkylsulfate, C5-C12 aryl Sulfonate ion; More preferably, A - is selected from acetate, propionate;
  • a - is selected from inorganic anions; preferably, A - is selected from the group consisting of halides, perhalides, nitrates, sulfates, bisulfides, sulfites, phosphates, and hydrogenphosphate ions, tetra Fluoborate ion; A - selected from chloride ion, bromide ion, tetrahydroborate ion.
  • nucleotide derivatives provided by the present invention are selected from the following compounds:
  • the phosphorothioate compounds in the present invention use phenyl dichlorophosphorothioate (CAS No. 18961-96-1) as the material, and the steps are all synthesized by referring to the method in Example 1 and patent CN104334570B.
  • the present invention provides a pharmaceutical composition
  • a pharmaceutical composition comprising the above-mentioned nucleotide derivatives, tautomers, stereoisomers, solvates or pharmaceutically acceptable salts thereof.
  • the invention discloses a pharmaceutical composition, which uses the compound, tautomer, stereoisomer, solvate or pharmaceutically acceptable salt thereof as the active ingredient or the main active ingredient, supplemented by pharmaceutical acceptable carrier composition.
  • the present invention provides the use of the above-mentioned nucleotide derivatives, tautomers, stereoisomers, and pharmaceutically acceptable salts thereof as antiviral drugs for the treatment and/or prevention of viral-induced Diseases include viral pneumonia.
  • the viruses include but are not limited to Arenaviridae, Filoviridae and Coronaviridae viruses (including 2019-nCoV virus).
  • nucleotide derivatives of the present invention can be formulated as pharmaceutical compositions, and administered to patients according to various suitable modes of administration, including systemic such as oral or parenteral, intravenous, intramuscular, transdermal or Subcutaneous etc.
  • the nucleotide derivatives of the present invention lactose and calcium stearate are mixed, pulverized, granulated and dried to prepare granules of appropriate size. Next, calcium stearate was added, and compression molding was performed to obtain tablets.
  • nucleotide derivatives of the present invention lactose and microcrystalline cellulose are mixed, granulated and then compressed into tablets to form orally disintegrating tablets.
  • the nucleotide derivatives of the present invention and phosphate buffer are mixed to make injections.
  • the nucleotide derivative of the present invention and lactose are mixed and pulverized to prepare an inhalant.
  • nucleotide derivatives of the present invention an appropriate amount of surfactant and an osmotic pressure regulator are dissolved together to prepare a solution for inhalation.
  • the present invention provides a method for treating or preventing viral infection, comprising administering a therapeutically effective amount of the above-mentioned nucleotide derivatives, tautomers, stereoisomers, solvates, or pharmaceutically effective doses thereof to individuals in need thereof. acceptable salt, or the above-mentioned pharmaceutical composition.
  • reaction solution was diluted with water, washed with saline, dried over anhydrous sodium sulfate, filtered, concentrated under reduced pressure, and the residue was separated and purified by Flash to obtain 6 g of a colorless oil with a yield of 36.8%.
  • Embodiment 6 the synthesis of compound HD85-19
  • Embodiment 7 the synthesis of compound HD85-20
  • Embodiment 8 the synthesis of compound HD85-22
  • Embodiment 9 the synthesis of compound HD85-21
  • compound HD85-21 was synthesized by reaction of compound s22 and compound s34, MS: m/z 742.3[M+H] + .
  • Embodiment 10 the synthesis of triphosphate compound (DZ-1)
  • Embodiment 11 the preparation of freeze-dried powder
  • the solution with a final concentration of 1.40mg/ml was canned in 20ml vials, and each bottle was filled with about 4ml.
  • the filled vials were half stoppered and freeze-dried. After the freeze-drying was completed, the capping was carried out to obtain the freeze-dried powder of GS-5734.
  • the freeze-dried powders of LH84-07, LH84-08, LH84-11, HD85-05, HD85-15, HD85-19, HD85-20 and HD85-22 were prepared according to the above method.
  • Embodiment 11 freeze-dried powder and solution stability examination
  • Solution stability GS-5734, LH84-07, LH84-08, LH84-11, HD85-05, HD85-15, HD85-19, HD85-20 and HD85-22 prepared in Example 7 were accurately weighed and freeze-dried 7.2 mg of powder was placed in a 10 ml volumetric flask, after adding an appropriate amount of normal saline to fully dissolve, the volume was adjusted to 10 ml to obtain a 0.72 mg/ml normal saline solution.
  • Stability of freeze-dried powder lyophilize GS-5734, LH84-07, LH84-08, LH84-11, HD85-05, HD85-15, HD85-19, HD85-20 and HD85-22 prepared in Example 7 An appropriate amount of powder was placed under the condition of 25°C ⁇ 1°C, samples were taken at 0d, 3d, 10d, and 21d after standing, and tested by HPLC to investigate the stability of the above freeze-dried powder placed under the condition of 25°C+1°C.
  • the result shows that after the compound of the present invention is made into freeze-dried powder, whether it is a freeze-dried powder solution or a freeze-dried powder, it is stable under experimental conditions.
  • Example 13 Anti-new coronavirus activity and cytotoxicity in vitro
  • HeLa-ACE2 cells were inoculated into 96-well plates at a certain density, and cultured in a 5% CO 2 , 37° C. incubator for 24 hours, and the culture medium was discarded. Add serial concentrations of each compound diluted with culture medium (8 concentrations for each compound, and each concentration is set up in triplicate wells) to continue culturing, and add 100 pfu of virus (Lineage B.1.1.529; Omicron Variant ), after adding the virus, the culture was continued for 48 h, and the cell viability was detected. Cell control (normally growing cells, no compound treatment or virus infection), virus control (cells infected with virus, no compound treatment) were set.
  • the cytotoxicity test method is basically the same as the antiviral test method, the difference is that there is no virus infection in the cytotoxicity test, and the serial concentrations of the compounds in the two tests are different.
  • Cell viability was detected using the cell viability assay kit CellTiter Glo (Promega).
  • the antiviral activity and cytotoxicity of the compound are represented by the inhibitory rate (%) and cell viability (%) of the compound on the cytopathic effect caused by the virus at different concentrations, respectively.
  • GraphPad Prism was used to perform nonlinear fitting analysis on the inhibition rate and cell viability of the compound, and calculate the EC50 and CC50 values of the compound. The results are shown in Table 1:
  • the compound of the present invention has better anti-omicrion virus effect.
  • Embodiment 14 Cynomolgus monkey pharmacokinetic test
  • GS-5734 group the dosage is 3.60mg/kg
  • LH84-11 group the dosage is 3.70mg/kg
  • HD85-15 group the dosage is 4.17mg/kg (equal molar administration for the three groups)
  • GS-5734, LH84-11 and HD85-15 freeze-dried powder respectively, dissolve with normal saline, fine filter after dissolution.
  • the above three kinds of intravenous infusion were given by intravenous infusion respectively, and the volume of intravenous infusion given to each animal was calculated according to the weight of the cynomolgus monkey.
  • the intravenous infusion time of animals in each group was 20 minutes. About 2 mL of blood was collected through the femoral vein, anticoagulated with K 2 EDTA, immediately placed on an ice bath after blood collection, and centrifuged within 30 minutes, and the centrifugation of blood samples was carried out at 20 ⁇ 2°C, within 2 hours after blood collection PBMCs were isolated.
  • the time points of blood sample collection were before administration (0h), 20min after administration (end of infusion), 40min, 1.0h, 2.0h, 4.0h, 6.0h, 8.0h, 24.0h, 30.0h, 48.0h and 72.0h.
  • Sample processing and detection of triphosphates (DZ-1) in isolated PBMCs were performed using LC-MS/MS analysis. Through the concentration data at different time points, the pharmacokinetic parameters were calculated using WinNonlin, and the results are shown in Table 2.
  • Example 15 Distribution test in cynomolgus monkey lung tissue
  • GS-5734 group Eighteen healthy cynomolgus monkeys, male, weighing 4-6 kg, were randomly divided into 3 groups (including GS-5734 group, LH84-11 group and HD85-15 group), with 6 monkeys in each group.
  • the dosage is 20mg/kg in terms of GS-5734, which is equimolar administration.
  • the above three kinds of intravenous infusion were given by intravenous infusion respectively, and the volume of intravenous infusion given to each animal was calculated according to the weight of the cynomolgus monkey.
  • the intravenous infusion time of animals in each group was 20 minutes.
  • the cynomolgus monkeys were euthanized at 12.0h and 24.0h after the administration, and the tissues and organs were collected. After the blood was cleaned with normal saline on the surface, the water was blotted with filter paper and weighed. A fixed amount of all lung tissues was taken at a fixed location and placed in a glass homogenate tube, and 3 times normal saline was added for grinding and homogenization to obtain a homogenate of each tissue. The homogenate was stored at -80°C. Biological samples were processed to detect triphosphate compounds (DZ-1) in lung tissue by LC-MS/MS. The results are shown in Table 3.

Abstract

一种核苷酸衍生物及其药物组合物和用途,所述核苷酸衍生物如式(I)所示,其中各基团的定义详见说明书;该化合物可用于抗病毒感染。

Description

一种核苷酸衍生物及其药物组合物和用途 技术领域
本发明涉及但不限于药物化学技术领域,尤指一种核苷酸衍生物及其药物组合物和用途。
背景技术
吉利德科学公司在中国专利申请CN107073005A和CN108348526A中公开了具有抗沙粒病毒科、丝状病毒科和冠状病毒科病毒感染的下列化合物:
Figure PCTCN2022123814-appb-000001
该化合物溶解性相对较差,致使生物利用度较低,给药剂量较大,加上核苷类化合物具有较大的副作用,本领域仍需要新型结构的核苷酸衍生物。
发明内容
申请人致力于上述核苷酸衍生物的结构改进,期望改善该化合物的生物利用度或透过细胞的能力,改善其理化性质以满足多种给药方式,并进一步降低剂量降低副作用。
本发明人开发了一种核苷酸衍生物,该核苷酸衍生物具有抗病毒作用。
在该类抗病毒药物分子开发的过程中,对分子多个基团进行了大量优化或改进,发现在对氨基酸及氨基酸酯进行如本发明的修饰后,本发明所述的化合物后具有良好的稳定性,溶解性,且具有较好的进入细胞的能力;此外,意外地发现本发明化所述化合物在肺部具有特异性的分布。进一步的研究表明本发明化合物生物抗病毒活性明显提高,具有极好的开发前景。
一种如(I)所示的核苷酸衍生物、互变异构体、立体异构体、溶剂化物、或其药学上可接受盐:
Figure PCTCN2022123814-appb-000002
式(I)中,R 01为氢或氰基;R 02为氢或
Figure PCTCN2022123814-appb-000003
R 03为氢或
Figure PCTCN2022123814-appb-000004
R 04为氢或氟;R 05为氢或叠氮;
R a和R b各自独立地为H、或选自下列基团:烷基羰基、烯烃基羰基、炔烃基羰基、环烷基羰基、非芳香的环烯烃基羰基、芳基羰基或杂芳基羰基;
R 1和R 2各自独立地为氢或选自下列基团:C1-C8的烷基、苄基;
Y 1和Y 3各自独立地选自O或S;Y 2选自NH、O或S;
当Y 1、Y 2和Y 3至少一个为S时,
R 3选自基团B取代或未取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;
所述基团B为下列基团中一种或多种:羟基、氨基、巯基、硝基、卤素、羧基、醛基、烷基羰基氧基、氨基羰基、胍基、
Figure PCTCN2022123814-appb-000005
其中,R 4和R 5各自独立地为氢或选自下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、C6-C20的芳基烷基;或R 4和R 5连接成环;R 6选自C1-C20的烷基或氢;A -选自常见有机或无机阴离子。
或者,当Y 1、Y 2和Y 3均为O时,R 3选自被
Figure PCTCN2022123814-appb-000006
取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;所述的R 4、R 5、R 6和A -均如前所述;
或者,当Y 1和Y 3各自独立地选自O或S,Y 2为NH时,R 3选自被基团C取代的C1-C20的烷基、C6-C20的芳基烷基或C6-C20的杂芳基烷基;
所述基团C为下列基团中一种或多种:羟基、巯基、羧基、烷基羰基氧基、氨基羰基、烷氧基羰基、烷硫基羰基。
一种如(I 0)所示的核苷酸衍生物、互变异构体、立体异构体、溶剂化物、或其药学上可接受盐:
Figure PCTCN2022123814-appb-000007
式(I 0)中,R a和R b各自独立地为H、或选自下列基团:烷基羰基、烯烃基羰基、炔烃基羰基、环烷基羰基、非芳香的环烯烃基羰基、芳基羰基或杂 芳基羰基;
R 1和R 2各自独立地为氢或选自下列基团:C1-C8的烷基、苄基;
Y 1和Y 3各自独立地选自O或S;Y 2选自NH、O或S;
当Y 1、Y 2和Y 3至少一个为S时,
R 3选自基团B取代或未取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;
所述基团B为下列基团中一种或多种:羟基、氨基、巯基、硝基、卤素、羧基、醛基、烷基羰基氧基、氨基羰基、胍基、
Figure PCTCN2022123814-appb-000008
其中,R 4和R 5各自独立地为氢或选自下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、C6-C20的芳基烷基;或R 4和R 5连接成环;R 6选自C1-C20的烷基或氢;A -选自常见有机或无机阴离子。
或者,当Y 1、Y 2和Y 3均为O时,R 3选自被
Figure PCTCN2022123814-appb-000009
取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;所述的R 4、R 5、R 6和A -均如前所述;
或者,当Y 1和Y 3各自独立地选自O或S,Y 2为NH时,R 3选自被基团C取代的C1-C20的烷基、C6-C20的芳基烷基或C6-C20的杂芳基烷基;
所述基团C为下列基团中一种或多种:羟基、巯基、羧基、烷基羰基氧基、氨基羰基、烷氧基羰基、烷硫基羰基。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(II 0)所示:
Figure PCTCN2022123814-appb-000010
式(II 0)中取代基的定义如式(I)和式(I 0)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(III 0)所示:
Figure PCTCN2022123814-appb-000011
式(III 0)中取代基的定义如式(I)和式(I 0)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(IV 0)所示:
Figure PCTCN2022123814-appb-000012
式(IV 0)中取代基的定义如式(I)和式(I 0)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(I 1)所示:
Figure PCTCN2022123814-appb-000013
式(I 1)中,Y 1、Y 2和Y 3各自独立地为O、N(H)、或S;
R 3和R 4各自独立地为H、或选自被一个或者多个基团A取代或未取代的下列基团:烷基羰基、烯烃基羰基、炔烃基羰基、环烷基羰基、非芳香的环烯烃基羰基、芳基羰基或杂芳基羰基;
R 1选自被一个或者多个基团A取代或未取代的C6-C20的芳基或R 2
R 2
Figure PCTCN2022123814-appb-000014
其中,Y 4为O或S;
R 5和R 6各自独立地为氢或选自被一个或者多个基团B取代或未取代的下列基团:C1-C8的烷基、苄基;
R 7选自被一个或者多个基团B取代或未取代的下列基团:C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基;或者,R 7为被一个或者多个基团B取代的烷基、或者被一个或多个基团B取代的芳基;
所述基团A为下列基团中一种或多种:烷基、环烷基、烷氧基、烷硫基、烷氨基、烷基羰基、氨基烷基、羟基烷基、氨基烷基羰基、杂环烷基、杂环烷基亚甲基、单烷胺基亚甲基、双烷胺基亚甲基、卤素、氨基、巯基、羟基、羧基、氰基和硝基;
所述基团B为下列基团中一种或多种:羟基、氨基、巯基、硝基、卤素、羧基、醛基、烷酰氧基、氨基羰基和胍基。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(II1)所示:
Figure PCTCN2022123814-appb-000015
式(II 1)中取代基的定义如式(I 1)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(III 1)所示:
Figure PCTCN2022123814-appb-000016
式(III 1)中取代基的定义如式(I 1)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(IV 1)所示:
Figure PCTCN2022123814-appb-000017
式(IV 1)中取代基的定义如式(I 1)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(I 2)所示
Figure PCTCN2022123814-appb-000018
式(I 2)中,Y 1、Y 2和Y 3各自独立地为O或S;
R 1和R 2各自独立地为氢或选自下列基团:C1-C8的烷基、苄基;
R 3选自基团B取代或未取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基;且当Y 3为O时,R 3被基团B取代;
基团B选自下列结构:
Figure PCTCN2022123814-appb-000019
其中,R 4和R 5各自独立地为氢或选自下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、C5-C20的芳香烷基、或R 4和R 5连接成环;R 6选自C1-C20的烷基或氢;A -选自常见有机或无机阴离子。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(II 2)所示:
Figure PCTCN2022123814-appb-000020
式(II 2)中取代基的定义如式(I 2)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(III 2)所示:
Figure PCTCN2022123814-appb-000021
式(III 2)中取代基的定义如式(I 2)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(IV 2)所示:
Figure PCTCN2022123814-appb-000022
式(IV 2)中取代基的定义如式(I 2)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(V 2)所示:
Figure PCTCN2022123814-appb-000023
式(V 2)中取代基的定义如式(I 2)所定义的。
在本发明的实施方案中,本发明提供的核苷酸衍生物,如式(VI 2)所示:
Figure PCTCN2022123814-appb-000024
式(VI 2)中取代基的定义如式(I 2)所定义的。
在本申请的实施方案中,所述烷基羰基为C1-C20烷基羰基,包括但不限于:甲酰基、乙酰基、丙酰基、2-甲基丙酰基、丁酰基、3-甲基丁酰基。
在本申请的实施方案中,所述烷基羰基氧基为C1-C20烷基羰基与氧原子相连的基团。
在本申请的实施方案中,所述烯烃基羰基为C2-C20烯烃基羰基,包括但不限于:丙烯酰基、2-丁烯酰基、3-丁烯酰基、4-戊烯酰基、3-戊烯酰基。
在本申请的实施方案中,所述炔烃基羰基为C2-C20炔烃基羰基,包括但不限于:2-丁炔酰基、2-戊炔酰基、3-戊炔酰基。
在本申请的实施方案中,所述环烷基羰基可以为C3-C8环烷基羰基包括但不限于:环丙基羰基、环丁基羰基、环戊基羰基、环己基羰基、环庚基羰基、或环辛基羰基。
在本申请的实施方案中,所述非芳香的环烯烃基羰基可以非芳香的C3-C8环烯烃基包括但不限于:环戊烯基羰基、环己烯基羰基。
在本申请的实施方案中,所述芳基羰基可以为C6-C20芳基羰基包括但不限于:苯甲酰基、萘甲酰基、蒽甲酰基、或联苯甲酰基等。
在本申请的实施方案中,未特别说明的烷基均指C1-C8烷基。
在本申请的实施方案中,所述杂芳基羰基中的杂芳基可以选自下列基团: 噻吩基、呋喃基、咪唑基、吡唑基、噻唑基、异噻唑基、噁唑基、异噁唑基、***基、噻二唑基、噁二唑基、四唑基、噻***基、噁***基、吡啶基、嘧啶基、吡嗪基、哒嗪基、三嗪基、四嗪基、嘌呤基、苯并噁唑基、苯并呋喃基、苯并噻唑基、苯并噻二唑基、苯并***基、苯并咪唑基和吲哚基。
在本申请的实施方案中,所述C1-C8烷基包括但不限于:甲基、乙基、正丙基、异丙基、正丁基、仲丁基、异丁基、叔丁基、正戊基、新戊基、正己基、庚基、辛基、或2,2-二乙基乙基。
在本申请的实施方案中,所述C1-C20烷基包括直链或支链的烷基,也包括环烷基或取代的环烷基,包括但不限于:甲基、乙基、正丙基、异丙基、正丁基、仲丁基、异丁基、叔丁基、正戊基、新戊基、正己基、庚基、辛基、或2,2-二乙基乙基、十二烷基、十四烷基、十六烷基、十八烷基、或2,2-二乙基乙基。
在本申请的实施方案中,所述C2-C20烯烃基包括直链或支链的烯基,也包括环烯基或取代的环烯基,包括但不限于烯丙基、2-丁烯基(-CH2-CH=CH-CH 3)、2-甲基-2-戊烯基(-CH 2-C(CH 3)=CH-CH 2-CH 3)、5-己烯基(-CH 2CH 2CH 2CH=CH 2)、或2-丁炔基(-CH 2-CC-CH 3)。
在本申请的实施方案中,所述C2-C20炔烃基包括直链或支链的炔基,包括但不限于1-丁炔-4-基。
在本申请的实施方案中,所述非芳香的C3-C8环烯烃基是指该环包含3-8个碳原子、环上至少包括一个双键且环为非芳香性环。非芳香的C3-C8环烯烃基的环上可以有杂原子,如氧、硫、氮原子。非芳香的C3-C8环烯烃基包括但不限于:环己烯基、四氢吡啶基。
在本申请的实施方案中,所述3-8元杂环烷基或非芳香的且包含至少一个双键的3-8元杂环基是指该杂环至少包括一个或多个下列原子:氧、氮和硫;所述3-8元杂环烷基或非芳香的且包含至少一个双键的3-8元杂环基包括但不限于:环氧乙烷基、吖丙啶基、硫杂环丙烷基、氮杂环丁烷基、氧杂环丁烷基、硫杂环丁烷基、1,2-二硫杂环丁基、1,3-二硫杂环丁基、吡咯烷基、 二氢-1H-吡咯基、二氢呋喃基、四氢呋喃基、二氢噻吩基、四氢噻吩基、咪唑烷基、哌啶基、哌嗪基、异喹啉基、四氢异喹啉基、吗啉基、硫吗啉基、1,1-二氧代-硫吗啉基、二氢吡喃基、四氢吡喃基、六氢噻喃基、六氢嘧啶基、氧杂氮杂环己烷基、噻嗪烷基、噻噁烷基、高哌嗪基、高哌啶基、氮杂环庚烷基、氧杂环庚烷基、硫杂环庚烷基、氧氮杂环庚烷基、二氮杂环庚烷基、1,4-二氮杂环庚烷基、硫氮杂环庚烷基、四氢噻喃基、噁唑烷基、噻唑烷基、异噻唑烷基、1,1-二氧代异噻唑烷酮基、噁唑烷酮基等。
在本申请的实施方案中,所述芳基为C6-C14芳香基,包括但不限于苯、萘、蒽、或联苯等。
在本申请的实施方案中,所述C6-C20的芳基烷基为烷基被芳基取代后所形成的共6-20个碳原子的芳基烷基。
在本申请的实施方案中,所述3-8元杂芳基可以选自:嘧啶、呋喃、噻唑、噻吩、吡啶、吡咯、咪唑。
在本申请的实施方案中,所述有机阴离子包括但不限于:自C1-C12烷基酸根、C1-C12烷基磺酸根,C1-C12烷基硫酸根,C5-C12芳基磺酸根离子。
在本申请的实施方案中,所述无机阴离子包括但不限于:卤离子、高卤酸根、硝酸根、硫酸根、硫氢酸根、亚硫酸根、磷酸根和磷酸氢根离子、四氟硼酸根离子。
在本申请的实施方案中,所述的药学上可接受的盐,包括但不限于,无机酸盐,例如盐酸盐、硫酸盐、或磷酸盐等;有机酸盐,例如甲磺酸盐、乙磺酸盐、苯磺酸盐、苯甲磺酸盐、枸橼酸盐、或乙酸盐等。
在一些实施方案中,R 01为氢;在一些实施方案中,R 01为氰基。
在一些实施方案中,R 02为氢;在一些实施方案中,R 02
Figure PCTCN2022123814-appb-000025
在一些实施方案中,R 03为氢;在一些实施方案中,R 03
Figure PCTCN2022123814-appb-000026
在一些实施方案中,R 04为氢;在一些实施方案中,R 04为氟。
在一些实施方案中,R 05为氢;在一些实施方案中,R 05为叠氮基。
在一些实施方案中,在式(I)、式(I 0)或式(II 0)式(III 0)中,R a和R b各自独立选自氢;
在一些实施方案中,在式(I)、式(I 0)或式(II 0)式(III 0)中,R a和R b各自独立选自烷基羰基、被取代的烷基羰基、苯基羰基、和被取代的苯基羰基,这里,所述被被取代的烷基羰基或被取代的苯基羰基是指被一个或多个下列基团所取代:烷基、环烷基、烷氧基、芳氧基、烷硫基、烷氨基、烷基羰基、氨基烷基、羟基烷基、氨基烷基羰基、杂环烷基、杂环烷基亚甲基、单烷胺基亚甲基、双烷胺基亚甲基、卤素、氨基、巯基、羟基、羧基、氰基和硝基;优选地,Ra和Rb各自独立选自氢、乙酰基、氨基酸羰基残基(如丙氨酰等)、丙酰基、二甲胺基丙酰基、3-羧基基丙酰基、3-(二甲胺甲基)苯甲酰基、吗啉-4-甲基取代的苯甲酰基、和2-胺基丙酰基。
在一些具的实施方案中,在式(I)和式(I 0)中,R 01为氰基,R 02
Figure PCTCN2022123814-appb-000027
R 03
Figure PCTCN2022123814-appb-000028
R 04为氢,R 05为氢;优选地,R 01为氰基,R 01为氰基,R 02为OH,R 03为OH,R 04为氢,R 05为氢;
在一些具的实施方案中,在式(I)中,R 01为氢,R 02
Figure PCTCN2022123814-appb-000029
R 03为氢,R 04为氟,R 05为叠氮基;优选地,R 01为氢,R 02为羟基,R 03为氢,R 04为氟,R 05为叠氮基。
在一些实施方案中,在式(I)至式(V 0)中,R 1和R 2各自独立地为氢或选自下列基团:C1-C8的烷基、苄基;在一些具体的实施方案中,在式(I 0)至式(V 0)中,R 1和R 2各自独立选自:氢、甲基、乙基、和苄基。
在一些实施方案中,在式(I)、式(I 0)、式(IV 0)和式(V 0)中,Y 1、Y 2和Y 3各自独立地为O或S,其中至少一个为S;
在一些实施方案中,在式(I)和式(I 0)中,Y 1为O,Y 2和Y 3为S;
在一些实施方案中,在式(I)和式(I 0)中,Y 3为O,Y 1和Y 2为S;
在一些实施方案中,在式(I)、式(I 0)、式(II 0)和式(III 0)中,Y 3为 O,Y 1和Y 2中其中之一为S;
在一些实施方案中,在式(I)和式(I 0)中,Y 3为S,Y 1和Y 2为O;
在一些实施方案中,在式(I)、式(I 0)、式(IV 0)和式(V 0)中,Y 1、Y 2和Y 3均为O;
在一些实施方案中,在式(I)、式(I 0)和式(VI 0)中,Y 1和Y 3各自独立地选自O或S,Y 2为NH。
在一些实施方案中,在式(I)至式(V 0)中,R 3选自下列基团:C1-C20烷基、C2-C20烯烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;优选地,R 3选自:C1-C8的烷基、2-乙基-3-丁烯基、3-丁烯基、2-丁烯基、环己烯基甲基、呋喃-2-基甲基、六氢吡喃-4-基甲基、2-甲基-2-丁烯基;
在一些实施方案中,在式(I)至式(V 0)中,R 3选自被一个或者多个基团B取代的下列基团:C1-C20烷基、C2-C20烯烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;所述基团B为下列基团中一种或多种:羟基、氨基、巯基、硝基、卤素、羧基、醛基、烷基羰基氢基、氨基羰基和胍基、
Figure PCTCN2022123814-appb-000030
优选地,R 3选自:1,3-二(乙酰氧基)-丙-2-基、溴甲基、溴乙基、4-溴苯基、、
Figure PCTCN2022123814-appb-000031
Figure PCTCN2022123814-appb-000032
取代的烷基。
在一些具体的实施方案中,Y 1和Y 3各自独立地选自O或S,Y 2选自NH、O或S,且Y 1、Y 2和Y 3至少一个为S时,R 3选自基团B取代或未取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;所述基团B为下列基团中一种或多种:羟基、氨基、巯基、硝基、卤 素、羧基、醛基、烷基羰基氧基、氨基羰基、胍基、
Figure PCTCN2022123814-appb-000033
在一些具体的实施方案中,Y 1、Y 2和Y 3均为O时,R 3选自被
Figure PCTCN2022123814-appb-000034
取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;
在一些具体的实施方案中,Y 1和Y 3各自独立地选自O或S,Y 2为NH时,R 3选自被基团C取代的C1-C20的烷基、C6-C20的芳基烷基或C6-C20的杂芳基烷基,所述基团C为下列基团中一种或多种:羧基、烷基羰基氧基、氨基羰基、烷氧基羰基、烷硫基羰基;优选地,Y 1和Y 3各自独立地选自O或S,Y 2为NH时,R 3选自被羧基、烷氧基羰基取代的C1-C20的烷基、C6-C20的芳基烷基或C6-C20的杂芳基烷基;
在一些具体的实施方案中,Y 1为O,Y 1为S,Y 2为NH时,R 3选自被基团C取代的C1-C20的烷基、C6-C20的芳基烷基或C6-C20的杂芳基烷基,所述基团C为下列基团中一种或多种:羧基、烷基羰基氧基、氨基羰基、烷氧基羰基、烷硫基羰基;优选地,Y 1为O,Y 1为S,Y 2为NH时,R 3选自被羧基、烷氧基羰基取代的C1-C20的烷基、C6-C20的芳基烷基或C6-C20的杂芳基烷基;更优选地,Y 1为O,Y 1为S,Y 2为NH时,R 3选自被烷氧基羰基取代的C1-C3的烷基、苯基取代的烷基;
在一些具体的实施方案中,R 3选自
Figure PCTCN2022123814-appb-000035
取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;
在一些具体的实施方案中,R 3选自
Figure PCTCN2022123814-appb-000036
取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基。
在一些实施方案中,R 4和R 5各自独立地为氢;
在一些实施方案中,R 4和R 5各自独立地选自下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、C5-C20的芳香烷基;
在一些实施方案中,R 4和R 5连接成环。
在一些实施方案中,R 6选自C1-C20的烷基;在一些实施方案中,R 6为氢;
在一些实施方案中,R 4和R 5不为氢,R 6为氢。
在一些实施例中,A -选自常见有机阴离子;优选地,A -选自:C1-C12烷基酸根、C1-C12烷基磺酸根,C1-C12烷基硫酸根,C5-C12芳基磺酸根离子;更优地,A -选自乙酸根、丙酸根;
在一些实施例中,A -选自无机阴离子;优选地,A -选自卤离子、高卤酸根、硝酸根、硫酸根、硫氢酸根、亚硫酸根、磷酸根和磷酸氢根离子、四氟硼酸根离子;A -选自氯离子、溴离子、四氢硼酸根离子。
在一些实施方案中,本发明提供的上述核苷酸衍生物,选自下列化合物:
Figure PCTCN2022123814-appb-000037
Figure PCTCN2022123814-appb-000038
Figure PCTCN2022123814-appb-000039
或者上述化合物的药学上可接受的盐。
本发明中化合物合成所用到的部分非市售简单中间体根据文献报道路线合成,如
Figure PCTCN2022123814-appb-000040
主要参照文献ChemPlusChem 2017,82,1235-1244中的合成方法合成,
Figure PCTCN2022123814-appb-000041
文献参考专利CN105152990中的合成路线合成。
本发明中硫代磷酸酯类化合物以二氯硫代磷酸苯酯(CAS No.18961-96-1)为物料,所述步骤均参照实施例1及专利CN104334570B中方法合成。
本发明中用到的物料
Figure PCTCN2022123814-appb-000042
参照文献方法合成(Soueidan O M,Trayner B J,Grant T N,et al.New fluorinated fructose analogs as selective probes of the hexose transporter protein GLUT5[J].Organic&Biomolecular Chemistry,2015,13(23):6511-6521)。
另一方面,本发明提供了包含上述核苷酸衍生物、互变异构体、立体异构体、溶剂化物或其药学上可接受盐的药物组合物。
本发明公开了一种药物组合物,其以本发明所述的化合物、互变异构体、立体异构体、溶剂化物或其药学上可接受盐为活性成分或主要活性成分,辅以药学上可接受的载体组成。
第四方面,本发明提供了上述核苷酸衍生物、互变异构体、立体异构体、及其药学上可接受的盐作为抗病毒药物的应用,用于治疗和/或预防病毒引起的疾病包括病毒性肺炎。这里,所述的病毒包括但不限于沙粒病毒科、丝状病毒科和冠状病毒科病毒(包括2019-nCoV病毒)。
本发明所述核苷酸衍生物可以被配制为药用组合物,按照多种合适选择的给予方式给患者用药,这些途径包括全身例如口服或胃肠外,通过静脉内、肌肉、透皮或皮下等。
在本发明的一些实例中,将本发明核苷酸衍生物、乳糖及硬脂酸钙进行混合,进行粉碎制粒并进行干燥,制成适当尺寸的颗粒剂。接着添加硬脂酸钙,进行压缩成形而制成片剂。
在本发明的一些实例中,将本发明核苷酸衍生物、乳糖及微晶纤维素进行混合,造粒后进行压片而制成口腔崩解片。
在本发明的一些实例中,将本发明核苷酸衍生物以及磷酸盐缓冲液进行 混合而制成注射剂。
在本发明的一些实例中,将本发明核苷酸衍生物及乳糖进行混合并进行粉碎,由此制成吸入剂。
在本发明的一些实例中,将本发明核苷酸衍生物及适量表面活性剂和渗透压调节剂共同溶解后,制成吸入用溶液剂。
本发明提供了一种治疗或预防病毒感染的方法,包括对有相应需要的个体施用治疗有效量的上述核苷酸衍生物、互变异构体、立体异构体、溶剂化物、或其药学上可接受盐,或者上述的药物组合物。
具体实施方式
以下实施例可以使本领域技术人员更全面地理解本发明,但不以任何方式限制本发明,所有化合物的结构均经MS确定。研究中所用的到起始物料包括化合物8和对照品GS-5734均为商业化采购。
实施例1:
Figure PCTCN2022123814-appb-000043
Figure PCTCN2022123814-appb-000044
化合物2的合成
将25克化合物1溶于500ml的二氧六环中,氮气保护下降温至0℃,缓慢加入21.42克HOBt、30.4克EDCI、40.11克三乙胺,加入完毕后室温搅拌2小时,向其中加入16克异丙醇,加入完毕后于50℃下反应6小时,降温,浓缩,体系过硅胶柱纯化得16.8克的化合物2,收率55%,MS:m/z231.55[M+H] +
化合物3的合成
将16克化合物2溶于300毫升的二氧六环中,加入氧化铝负载的P 2S 5共77克,于60℃下反应过夜,降温至室温,过滤,浓缩,柱层析分离得4.96克化合物3,收率29%,MS:m/z247.78[M+H] +
化合物4的合成
向反应瓶中加入4.8克化合物3和20毫升二氯甲烷,再加入5毫升的三氟乙酸,体系室温下搅拌3小时,浓缩至干得到化合物4,无需纯化直接投入下一步反应。
化合物6和化合物7的合成
氮气保护下,反应瓶中加入4克苯基二氯化磷和40毫升二氯甲烷,体系降温至-5℃以下,滴加化合物4(2.8克)的二氯甲烷(10毫升)溶液,滴毕,滴加2.11克三乙胺,控制内温不高于10℃,滴毕,体系反应2小时。滴加2.97克五氟苯酚的二氯甲烷(8毫升)溶液,控制内温不高于10℃,滴毕,滴加1.92克三乙胺。滴毕,体系升温室温反应。反应结束后,加入硫酸氢钠的水溶液,搅拌30分钟,分出有机相,有机相水洗后浓缩至干,得到化合物 6。
化合物6中加入24毫升环已烷,体系加热80℃搅拌1小时,加入0.25克三乙胺,缓慢降温至30℃搅拌5小时。体系过滤得到固体,固体中加入10毫升异丙醇,降温至0℃打浆2小时,过滤得到3.92克化合物7,收率44%,MS:m/z469.21[M+H] +
化合物9的合成
氮气保护下,反应瓶中加入2克化合物7和1.18克化合物8,20毫升无水乙腈,0.68克无水氯化镁,体系加热至50℃,加入1.15克二异丙基乙胺,反应体系在50℃继续反应。反应结束后,体系减压蒸馏浓缩至干,加入DCM和水,分出有机相浓缩至干,过硅胶柱纯化得到1.14克化合物9,收率52%,MS:m/z613.82[M+H] +
化合物LH84-01的合成
反应瓶中加入1克化合物9,5毫升四氢呋喃,2毫升37%的盐酸。体系室温下搅拌15小时。反应结束后,加入1N氢氧化钠溶液中和。体系减压蒸馏浓缩至干,用二氯甲烷和水分液,分出有机相,浓缩至干,过硅胶柱纯化得到0.63克化合物LH84-01,收率68%,MS:m/z576.39[M+H] +
实施例2:
Figure PCTCN2022123814-appb-000045
Figure PCTCN2022123814-appb-000046
化合物10的合成
将6克化合物1和7.71克羰基二咪唑(CDI)溶于50毫升无水四氢呋喃中,室温搅拌2小时,向其中加入3克异丙硫醇,体系室温下搅拌反应10小时,浓缩,过硅胶柱纯化得到5.73克化合物10,收率73%,MS:m/z247.88[M+H] +
化合物11的合成
向反应瓶中加入4.8克化合物10和20毫升二氯甲烷,再加入5毫升的三氟乙酸,体系室温下搅拌3小时,浓缩至干得到化合物11,无需纯化直接投入下一步反应。
化合物13和化合物14的合成
参照化合物6和化合物7的合成方法:氮气保护下,反应瓶中加入4克苯基二氯化磷和40毫升二氯甲烷,体系降温至-5℃以下,滴加上一步反应得到的化合物11(理论2.8克)的二氯甲烷(10毫升)溶液,滴毕,滴加2.11克三乙胺,控制内温不高于10℃,滴毕,体系反应2小时。滴加2.97克五氟苯酚的二氯甲烷(8毫升)溶液,控制内温不高于10℃,滴毕,滴加1.92克三乙胺。滴毕,体系升温室温反应。反应结束后,加入硫酸氢钠的水溶液,搅拌30分钟,分出有机相,有机相水洗后浓缩至干,得到化合物13。
化合物13中加入24毫升环已烷,体系加热80℃搅拌1小时,加入0.25克三乙胺,缓慢降温至30℃搅拌5小时。体系过滤得到固体,固体中加入10毫升异丙醇,降温至0℃打浆2小时,过滤得到4.98克化合物14,收率56%, MS:m/z469.22[M+H] +
化合物15的合成
参照化合物9的合成方法:氮气保护下,反应瓶中加入2克化合物14和1.18克化合物8,20毫升无水乙腈,0.68克无水氯化镁,体系加热至50℃,加入1.15克二异丙基乙胺,反应体系在50℃继续反应。反应结束后,体系减压蒸馏浓缩至干,加入DCM和水,分出有机相浓缩至干,过硅胶柱纯化得到1.34克化合物15,收率61%,MS:m/z613.82[M+H] +
化合物LH84-07的合成
参照化合物LH84-01的合成方法:反应瓶中加入0.8克化合物15,5毫升四氢呋喃,2毫升37%的盐酸。体系室温下搅拌15小时。反应结束后,加入1N氢氧化钠溶液中和。体系减压蒸馏浓缩至干,用二氯甲烷和水分液,分出有机相,浓缩至干,过硅胶柱纯化得到0.41克化合物LH84-07,收率61%,MS:m/z576.39[M+H] +
实施例3:
Figure PCTCN2022123814-appb-000047
化合物17合成
将化合物16(10g,60.58mmol,1eq)和硫脲(5.53g,72.7mmol,1.2eq)溶于乙醇(100mL)中,加热回流反应18小时,减压除去溶剂,得到粗品15g,白色固体,直接用于下一步反应。
化合物18合成
将化合物17(15g粗品)溶于水(60mL)中,冰水冷却下,滴加氢氧化钠溶液(35mL,5M),滴完后室温下搅拌反应18小时。反应完毕后,冰水冷却下,滴加15%的稀硫酸,调节pH到6左右,加入***萃取(100mLx3),合并有机相后,用食盐水(100mL)洗涤,无水硫酸钠干燥,过滤,滤液浓缩后得到粗品3g,直接用于下一步反应。
化合物19合成
将Boc保护的S构型的丙氨酸(10.67g,56.38mmol)溶于无水二氯甲烷(100mL)中,加入化合物18(8g,67.66mmol,1.2eq),室温搅拌下分批加入EDCI(12.97g,67.66mmol,1.2eq),再加入DMAP(690mg,5.64mmol,0.1eq),加完后室温下搅拌16小时。反应完后,将反应液用水稀释,食盐水洗涤,无水硫酸钠干燥,过滤,减压浓缩后,剩余物用Flash分离纯化后得到产品6g,无色油状物,收率36.8%。
化合物20的合成
将化合物19(6g,20.73mmol)溶于HCl/1,4-二氧六环(100mL,4M),室温下搅拌2小时,减压除去溶剂后得到产品5.3g,直接用于下一步反应,无色油状物。
化合物21的合成
将化合物20(5.3g,23.47mmol,1eq)溶于无水二氯甲烷(100mL)中,氮气保护下降温至-20℃,加入苯氧基磷酰二氯(5.0g,23.47mmol,1eq),再滴加三乙胺(5.45g,2.3eq,54mmol),反应液在-20℃反应2小时后,加入化合物9(3.26g,23.47mmol,1eq)和三乙胺(2.6g,25.82mmol,1.1eq)。反应液在-20℃继续搅拌2小时。反应完毕后,减压除去溶剂,剩余物用Flash分离纯化后得到产品9.26g,无色油状物,收率83%。
化合物22的合成
将化合物8(1.9g,5.72mmol,1eq)和化合物21(4g,8.57mmol,1.5eq)溶于无水乙腈(60mL)中,加入氯化镁(816mg,8.57mmol,1.5eq), 加热至50℃反应1小时后,加入DIPEA(1.85g,14.3mmol,2.5eq),反应液在50℃下继续搅拌反应16小时。补加化合物10(4g,8.57mmol,1.5eq)和DIPEA(1.85g,14.3mmol,2.5eq),反应液在50℃下继续搅拌反应16小时。反应完毕后,减压除去溶剂,剩余物用Flash分离纯化后得到粗品,再经反相制备色谱纯化后得到产品1.8g,白色固体,收率47.7%。
化合物23的合成
将化合物22(1.8g,2.73mmol)溶于乙腈/浓盐酸(20mL/4mL),室温下搅拌1小时,反应完毕后,减压除去溶剂,剩余物用反相制备色谱纯化后得到产品1.2g,白色固体,收率71%。
化合物LH84-11的合成
将化合物13(1.2g)经手性制备分离纯化后,得到产品400mg。MS:m/z619.1[M+H] +1H NMR(DMSO-D6,400MHz):δ7.89-7.93(m,3H),7.16-7.24(m,5H),6.83-6.96(m,2H),6.30-6.33(m,2H),5.39-5.40(d,1H),4.64-4.66(d,1H),4.26(m,2H),4.00(m,1H),3.87(m,1H),3.81(m,1H),2.74-2.76(d,2H),1.18-1.29(m,8H),0.78-0.81(m,6H)。
按照与上述实施例同样的方法,使市售化合物或由市售化合物适当合成的中间体化合物,合成了下列实施例化合物。
Figure PCTCN2022123814-appb-000048
Figure PCTCN2022123814-appb-000049
实施例4:
Figure PCTCN2022123814-appb-000050
Figure PCTCN2022123814-appb-000051
化合物s2的合成
将17克化合物s1溶于500ml的二氧六环中,氮气保护下降温至0℃,缓慢加入14.57克HOBt、20.67克EDCI、27.28克三乙胺,加入完毕后室温搅拌2小时,向其中加入13.5克二四胺基甲醇,加入完毕后于50℃下反应6小时,降温,浓缩,体系过硅胶柱纯化得10.18克的化合物s2,收率46%,MS:m/z246.63[M+H] +
化合物s3的合成
将8克化合物s2溶于300毫升的二氧六环中,加入氧化铝负载的P2S5共37克,于60℃下反应过夜,降温至室温,过滤,浓缩,柱层析分离得2.64克化合物s3,收率31%,MS:m/z262.57[M+H] +
化合物s4的合成
向反应瓶中加入2.5克化合物s3和15毫升二氯甲烷,再加入5毫升的三氟乙酸,体系室温下搅拌3小时,浓缩至干得到化合物s4,无需纯化直接投入下一步反应。
化合物s6和化合物s7的合成
氮气保护下,反应瓶中加入2克苯氧基二氯化磷和20毫升二氯甲烷,体系降温至-5℃以下,滴加化合物s4的二氯甲烷(10毫升)溶液,滴毕,滴加1.06克三乙胺,控制内温不高于10℃,滴毕,体系反应2小时。滴加1.48五氟苯酚的二氯甲烷(8毫升)溶液,控制内温不高于10℃,滴毕,滴加1.0克三乙胺。滴毕,体系升温室温反应。反应结束后,加入硫酸氢钠的水溶液, 搅拌30分钟,分出有机相,有机相水洗后浓缩至干,得到化合物s6。
化合物s6中加入15毫升环已烷,体系加热80℃搅拌1小时,加入0.2克三乙胺,缓慢降温至30℃搅拌5小时。体系过滤得到固体,固体中加入10毫升异丙醇,降温至0℃打浆2小时,过滤得到2.34克化合物s7,收率51%,MS:m/z484.59[M+H] +
化合物s9的合成
氮气保护下,反应瓶中加入1克化合物s7和0.57克化合物s8,20毫升无水乙腈,0.33克无水氯化镁,体系加热至50℃,加入0.56克二异丙基乙胺,反应体系在50℃继续反应。反应结束后,体系减压蒸馏浓缩至干,加入DCM和水,分出有机相浓缩至干,过硅胶柱纯化得到0.54克化合物s9,收率50%,MS:m/z631.24[M+H] +
化合物HD85-01的合成
反应瓶中加入0.4克化合物s9,5毫升四氢呋喃,2毫升37%的盐酸。体系室温下搅拌15小时。反应结束后,加入1N氢氧化钠溶液中和。体系减压蒸馏浓缩至干,用二氯甲烷和水分液,分出有机相,浓缩至干,过硅胶柱纯化得到0.26克化合物HD85-01,收率71%,MS:m/z591.81[M+H] +
实施例5:
Figure PCTCN2022123814-appb-000052
Figure PCTCN2022123814-appb-000053
化合物s10的合成
将5克化合物s1和6.43克羰基二咪唑(CDI)溶于50毫升无水四氢呋喃中,室温搅拌2小时,向其中加入4.23克二乙胺基乙硫醇,体系室温下搅拌反应10小时,浓缩,过硅胶柱纯化得到5.47克化合物s10,收率68%,MS:m/z304.45[M+H] +
化合物s11的合成
向反应瓶中加入5克化合物s10和20毫升二氯甲烷,再加入5毫升的三氟乙酸,体系室温下搅拌3小时,浓缩至干得到化合物s11,无需纯化直接投入下一步反应。
化合物s13和化合物s14的合成
参照化合物s6和化合物s7的合成方法:氮气保护下,反应瓶中加入3.4克苯氧基二氯化磷和40毫升二氯甲烷,体系降温至-5℃以下,滴加上一步反应得到的化合物s11的二氯甲烷(10毫升)溶液,滴毕,滴加1.79克三乙胺,控制内温不高于10℃,滴毕,体系反应2小时。滴加2.52克五氟苯酚的 二氯甲烷(8毫升)溶液,控制内温不高于10℃,滴毕,滴加1.63克三乙胺。滴毕,体系升温室温反应。反应结束后,加入硫酸氢钠的水溶液,搅拌30分钟,分出有机相,有机相水洗后浓缩至干,得到化合物s13。
化合物s13中加入20毫升环已烷,体系加热80℃搅拌1小时,加入0.23克三乙胺,缓慢降温至30℃搅拌5小时。体系过滤得到固体,固体中加入10毫升异丙醇,降温至0℃打浆2小时,过滤得到3.73克化合物s14,收率44%,MS:m/z526.79[M+H] +
化合物s15的合成
参照化合物s9的合成方法:氮气保护下,反应瓶中加入2克化合物s14和1.05克化合物s8,20毫升无水乙腈,0.6克无水氯化镁,体系加热至50℃,加入1.02克二异丙基乙胺,反应体系在50℃继续反应。反应结束后,体系减压蒸馏浓缩至干,加入DCM和水,分出有机相浓缩至干,过硅胶柱纯化得到1.32克化合物s15,收率62%,MS:m/z673.42[M+H] +
化合物HD85-05的合成
参照化合物HD85-01的合成方法:反应瓶中加入0.8克化合物s15,5毫升四氢呋喃,2毫升37%的盐酸。体系25℃下搅拌15小时。反应结束后,加入1N氢氧化钠溶液中和。体系减压蒸馏浓缩至干,用二氯甲烷和水分液,分出有机相,浓缩至干,过硅胶柱纯化得到0.37克化合物HD85-05,收率50%,MS:m/z633.34[M+H] +
按照与上述实施例同样的方法,使市售化合物或由市售化合物适当合成的中间体化合物,合成了下列实施例化合物。
Figure PCTCN2022123814-appb-000054
Figure PCTCN2022123814-appb-000055
Figure PCTCN2022123814-appb-000056
实施例6:化合物HD85-19的合成
Figure PCTCN2022123814-appb-000057
Figure PCTCN2022123814-appb-000058
化合物s17的合成
3g化合物1溶于1,4-二氧六环(30mL)中,氮气保护下降温至5℃,搅拌下,依次缓慢加入2.57g的HOBt、2.95g的EDCI及5.5ml三乙胺,室温反应,向体系加入化合物3.29g化合物s16,加毕,55℃下反应6小时,TLC检测反应完毕;降至室温,浓缩柱层析得4.87g化合物s17,收率81.1%。MS:m/z 379.3[M+H] +
化合物s18的合成
氩气保护下,4g化合物s17中加入80ml的无水甲苯,在室温下,加入6g劳森试剂。体系升温110℃反应7小时,TLC跟踪反应完成,冷却至室温。反应液硅胶垫过滤,滤液浓缩,剩余物硅胶柱分离纯化,得化合物1.84g化合物s18,收率44.2%。MS:m/z 395.2[M+H] +
化合物HD85-19的合成
参照化合物4、5、6及7的合成方法,分别合成化合物s19、s20、s21及s22;然后s22与化合物8参照化合物9的合成方法得到化合物s23;
参照化合物LH84-01的合成方法,s23一步反应得到95mg化合物HD85-19,MS:m/z 724.3[M+H] +
实施例7:化合物HD85-20的合成
Figure PCTCN2022123814-appb-000059
完全参照化合物HD85-19的合成方法合成化合物HD85-20共0.12g,MS:m/z 724.3[M+H] +
实施例8:化合物HD85-22的合成
Figure PCTCN2022123814-appb-000060
化合物s26的合成
将5g化合物s24和7.71g化合物s25溶解于50ml的THF中,体系降温至-78℃,缓慢滴加12.5ml正丁基锂溶液(2.5M in hexane)。体系在-78℃下反应30min,自然升温至0℃,用乙酸淬灭。体系升温减压浓缩至干,用乙酸乙酯和水萃取,分出有机相用无水硫酸钠干燥,浓缩至干,过硅胶柱纯化得到6.65g化合物s26,收率61%;MS:m/z 465.3[M+H] +
化合物s27的合成
6g化合物s26溶解于60ml的DCM中,室温下体系中加入6g三乙基硅烷,然后加入12ml的三氟化硼***溶液(46%)。体系在室温下反3天,加水淬灭反应。分出有机相浓缩至干,过硅胶柱纯化后再用制备色谱分离,得到2.1化合物s27,收率36%,MS:m/z 449.2[M+H] +
化合物s28的合成
1.9g化合物s27中加入15ml的吡啶,体系降温至0℃,加入0.9g苯甲酰氯。体系在室温下反应3小时,降温至0℃,加入1ml甲醇淬灭反应。体系继续搅拌2天,减压浓缩至干,体系用乙酸乙酯和水萃取,分出有机相,无水硫酸钠干燥后浓缩至干,硅胶柱纯化得到1.71g化合物s28,收率73%,MS:m/z 553.3[M+H] +
化合物s29的合成
1.5g化合物s28溶于8ml乙酸乙酯中,体系在0℃下加入2.61g甲磺酸,室温下反应12小时。体系中加入20ml乙酸乙酯,分批加入7g碳酸氢钠固体,继续搅拌24小时。体系加水后,先过滤后萃取分出有机相,浓缩至干,硅胶柱纯化得到0.42g化合物s29,收率42%,MS:m/z 373.1[M+H] +
化合物s30的合成
将0.38g化合物s29、0.6g三苯基磷和0.14g咪唑加至10ml的THF中,室温下加入0.4g碘。4h后,将0.18g碳酸氢钠固体加入体系中,然后加水淬灭反应。反应混合物浓缩,过硅胶柱纯化得到0.39g化合物s30,收率79%,MS:m/z 483.0[M+H] +
化合物s31的合成
0.35g化合物s30溶于5ml的THF中,加入0.35g的DBU.体系在室温下反应13h,然后加热至45℃反应12h。体系降温至室温,减压浓缩至干。过硅胶柱纯化得到0.19g化合物s31,收率75%,MS:m/z 355.1[M+H] +
化合物s32的合成
0.15g叠氮化钠的DMF混悬液(3ml)降温至0℃,加入0.15g氯化碘。 体系在0℃下搅拌10min,缓慢加热至室温继续反应20min。体系降温至-10℃,加入0.16g化合物s31的DMF溶液(2ml)。体系在0℃下反应2小时。用硫代硫酸钠溶液淬灭反应,加水析出固体,过滤。固体硅胶柱纯化得到0.17g化合物s32,收率72%,MS:m/z 523.0[M+H] +
化合物s33的合成
向1g化合物s32、0.66g间氯苯甲酸、0.72g四丁基硫酸氢铵和1.66g磷酸氢二钾中加入100ml的DCM和100ml水,室温下搅拌并加入1.32g间氯过氧苯甲酸。加毕,室温下继续反应5h。体系降温至0℃,加入硫代硫酸钠溶液淬灭反应,体系浓缩至干,用乙酸乙酯和水萃取,分出有机相浓缩至干,过硅胶柱纯化,得到0.51g化合物s33,收率47%,MS:m/z 552.2[M+H] +
化合物s34的合成
0.45化合物s33的甲醇溶液(8ml)中加入8ml羟胺(28%),体系加热至45℃反应24小时。体系浓缩至干,硅胶柱纯化得到0.19g化合物s34,收率77%,MS:m/z 310.1[M+H] +
化合物HD85-22的合成
参照化合物LH84-07的合成方法,以化合物s34和化合物14为物料反应,得到目标分子HD85-22,MS:m/z 595.2[M+H] +
实施例9:化合物HD85-21的合成
Figure PCTCN2022123814-appb-000061
完全参照化合物HD85-19的合成方法,以化合物s22和化合物s34反 应合成化合物HD85-21,MS:m/z 742.3[M+H] +
实施例10:三磷酸化合物(DZ-1)的合成
Figure PCTCN2022123814-appb-000062
参照专利CN107074902A中的合成方法合成三磷酸化合物(DZ-1)100mg;纯度99.17(HPLC);MS:m/z 530.02[M-H] -1H-NMR(D 2O,400MHz):δ7.81(s,1H),6.76-7.04(dd,2H),5.91(d,1H),4.34-4.50(m,2H),3.80-4.26(m,2H); 31P-NMR(D 2O,121.4MHz):δ-3.9(d,1P),-9.0(d,1P),-20.3(t,1P)。合成后的产品常规-80℃保存,运输过程中均为冷链运输。
实施例11:冻干粉的制备
称取GS-5734样品约600mg,置于500ml烧杯中,再向烧杯中加入425ml 30%磺丁基-β-环糊精钠溶液,然后将烧杯放置于磁力搅拌器上,搅拌约20分钟,使GS-5734样品完全溶解,溶解液为无色澄清透明液体。用0.2mol/L盐酸调节该溶解液的pH值至3.57,得含有GS-5734样品的磺丁基-β-环糊精钠溶液,溶液中GS-5734的最终浓度为1.40mg/ml。将终浓度为1.40mg/ml的溶液罐装于20ml西林瓶中,每瓶灌装约4ml。将灌装好的西林瓶半加塞,进行冻干。冻干结束后,轧盖得到GS-5734的冻干粉。按照上述方法制备LH84-07、LH84-08、LH84-11、HD85-05、HD85-15、HD85-19、HD85-20及HD85-22的冻干粉。
实施例11:冻干粉及溶液稳定性考查
溶液稳定性:分别精密称取实施例7制备的GS-5734、LH84-07、LH84-08、LH84-11、HD85-05、HD85-15、HD85-19、HD85-20及HD85-22冻干粉7.2mg,置于10ml容量瓶中,加入适量的生理盐水充分溶解后,定 容至10ml,得0.72mg/ml的生理盐水溶液。将配制完成的溶液立刻置于25℃±1℃环境中,分别于放置后0h、3.0h、6.0h、12.0h、24.0h取样,HPLC检测,考察上述冻干粉溶液在25℃+1℃条件下放置稳定性。
冻干粉稳定性:分别取实施例7制备的GS-5734、LH84-07、LH84-08、LH84-11、HD85-05、HD85-15、HD85-19、HD85-20及HD85-22冻干粉适量,置于25℃±1℃条件下,分别于放置后0d、3d、10d、21d取样,HPLC检测,考察上述冻干粉在25℃+1℃条件下放置的稳定性。
结果表明,本发明化合物制成冻干粉后,无论是冻干粉溶液,还是冻干粉,在实验条件下放置均稳定。
实施例13:体外抗新型冠状病毒活性和细胞毒性
HeLa-ACE2细胞以一定密度接种到96孔板中,并于5%CO 2、37℃培养箱中培养24h,弃除培养液。加入用培养液倍比稀释的各化合物的系列浓度(每个化合物均8个浓度,每个浓度设三复孔)继续培养,培养2h时后加入100pfu病毒(Lineage B.1.1.529;Omicron Variant),加入病毒后再继续培养48h,进行细胞活力检测。设置细胞对照(正常生长的细胞,无化合物处理或病毒感染),病毒对照(细胞感染病毒,无化合物处理)。细胞毒性实验方法与抗病毒实验方法基本相同,不同的是细胞毒性实验无病毒感染,以及两种实验的各化合物的系列浓度不同。使用细胞活力检测试剂盒CellTiter Glo(Promega)检测细胞活力。化合物的抗病毒活性和细胞毒性分别由不同浓度下的化合物对病毒引起的细胞病变效应的抑制率(%)和细胞的活率(%)表示。使用GraphPad Prism对化合物的抑制率和细胞活率进行非线性拟合分析,计算化合物的EC50和CC50值。结果如表1所示:
表1:体外抗新型冠状病毒活性和细胞毒性
  EC50(μM) CC50(μM)
GS-5734 0.83 >20
LH84-11 0.36 >20
LH85-15 0.24 >20
LH85-19 0.18 >20
LH85-22 0.25 >20
相对于GS-5734,本发明化合物具有更好的抗omicrion病毒的作用。
实施例14:食蟹猴药代动力学试验
取健康食蟹猴9只,雄性,体重4-6kg,随机分为3组,每组3只。GS-5734组:给药剂量为3.60mg/kg;LH84-11组:给药剂量为3.70mg/kg;HD85-15组:给药剂量为4.17mg/kg(三组为等摩尔给药),实验过程中对实验动物进行详细的临床观察。分别取GS-5734、LH84-11及HD85-15冻干粉适量,用生理盐水溶解,溶解后精滤。分别采取静脉输注方式给予上述3种静脉输注液,按食蟹猴的体重计算每只动物给予静脉输注液体积。各组动物的静脉输注时间均为20min。经股静脉采血约2mL,K 2EDTA抗凝,采血后立刻置于冰浴上,并在30min内离心处理,血液样本离心在20±2℃条件下进行,需在采集血液后2小时之内分离PBMC。血液样品采集时间点为给药前(0h)、给药开始后20min(输注结束)、40min、1.0h、2.0h、4.0h、6.0h、8.0h、24.0h、30.0h、48.0h和72.0h。使用LC-MS/MS分析方法对样品进行处理和检测分离的PBMC中的三磷酸化合物(DZ-1)。通过不同时间点的浓度数据,使用WinNonlin计算药代动力学参数,结果如表2所示。
表2:食蟹猴中PBMC标化代谢产物药代参数
Figure PCTCN2022123814-appb-000063
从表1可以看出,与GS-5734相比,本发明化合物LH84-11和HD85-15在PBMC中有更高的暴露量,这说明本发明化合物具有更好的进入细胞的能力。
实施例15:食蟹猴肺组织分布试验
取健康食蟹猴18只,雄性,体重4-6kg,随机分为3组(包括GS-5734组、LH84-11组和HD85-15组),每组6只。给药剂量以GS-5734计均为20mg/kg,为等摩尔给药。分别取GS-5734、LH84-11及HD85-15冻干粉适量,用生理盐水溶解,溶解后精滤。分别采取静脉输注方式给予上述3种静脉输注液,按食蟹猴的体重计算每只动物给予静脉输注液体积。各组动物的静脉输注时间均为20min。分别在给药后12.0h、24.0h安乐死食蟹猴,收集组织器官,表面用生理盐水将血液清洗干净后,用滤纸吸干水分,称重。所有肺组织均在固定部位取固定量置于玻璃匀浆管中,加入3倍生理盐水进行研磨匀浆,即得各组织匀浆液。匀浆液置-80℃保存。生物样本经处理后通过LC-MS/MS检测肺组织中的三磷酸化合物(DZ-1)。结果见表3所示。
表3:给药24h后肺组织中的三磷酸化合物(DZ-1)浓度(μM)
  GS-5734 LH84-11 HD85-15
12h 2.03±0.21 4.28±0.36 4.15±0.42
24h 1.17±0.15 2.59±0.23 2.35±0.19
从表2可以看出:在等摩尔给药三个不同的化合物后12.0h和24.0h,检测相同的活性代谢产物三磷酸化合物(DZ-1),结果显示给药本发明中两化合物后在肺组织中的三磷酸化合物(DZ-1)浓度均大于给药GS-5734后肺组织中三磷酸化合物(DZ-1)浓度。这说明本发明化合物具有更好的肺组织分布,更有利于抗肺部病毒感染。
本申请描述了多个实施例,但是该描述是示例性的,而不是限制性的,在本申请所描述的实施例包含的范围内可以有更多的实施例和实现方案。

Claims (14)

  1. 一种如(I)所示的核苷酸衍生物、互变异构体、立体异构体、溶剂化物、或其药学上可接受盐:
    Figure PCTCN2022123814-appb-100001
    式(I)中,R 01为氢或氰基;R 02为氢或
    Figure PCTCN2022123814-appb-100002
    R 03为氢或
    Figure PCTCN2022123814-appb-100003
    R 04为氢或氟;R 05为氢或叠氮基;
    R a和R b各自独立地为H、或选自下列基团:烷基羰基、烯烃基羰基、炔烃基羰基、环烷基羰基、非芳香的环烯烃基羰基、芳基羰基或杂芳基羰基;
    R 1和R 2各自独立地为氢或选自下列基团:C1-C8的烷基、苄基;
    Y 1和Y 3各自独立地选自O或S;Y 2选自NH、O或S;
    当Y 1、Y 2和Y 3至少一个为S时,
    R 3选自基团B取代或未取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;
    所述基团B为下列基团中一种或多种:羟基、氨基、巯基、硝基、卤素、羧基、醛基、烷基羰基氧基、氨基羰基、胍基、
    Figure PCTCN2022123814-appb-100004
    其中,R 4和R 5各自独立地为氢或选自下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、 非芳香的且包含至少一个双键的3-8元杂环基、C6-C20的芳基烷基;或R 4和R 5连接成环;R 6选自C1-C20的烷基或氢;A -选自常见有机或无机阴离子;
    或者,当Y 1、Y 2和Y 3均为O时,R 3选自被
    Figure PCTCN2022123814-appb-100005
    取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;所述的R 4、R 5、R 6和A -均如前所述;
    或者,当Y 1和Y 3各自独立地选自O或S,Y 2为NH时,R 3选自被基团C取代的C1-C20的烷基、C6-C20的芳基烷基或C6-C20的杂芳基烷基;;
    所述基团C为下列基团中一种或多种:羧基、烷基羰基氧基、氨基羰基、烷氧基羰基、烷硫基羰基。
  2. 一种如(I 0)所示的核苷酸衍生物、互变异构体、立体异构体、溶剂化物、或其药学上可接受盐:
    Figure PCTCN2022123814-appb-100006
    式(I 0)中,R a和R b各自独立地为H、或选自下列基团:烷基羰基、烯烃基羰基、炔烃基羰基、环烷基羰基、非芳香的环烯烃基羰基、芳基羰基或杂芳基羰基;
    R 1和R 2各自独立地为氢或选自下列基团:C1-C8的烷基、苄基;
    Y 1和Y 3各自独立地选自O或S;Y 2选自NH、O或S;
    当Y 1、Y 2和Y 3至少一个为S时,
    R 3选自基团B取代或未取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;
    所述基团B为下列基团中一种或多种:羟基、氨基、巯基、硝基、卤素、羧基、醛基、烷基羰基氧基、氨基羰基、胍基、
    Figure PCTCN2022123814-appb-100007
    其中,R 4和R 5各自独立地为氢或选自下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、C6-C20的芳基烷基;或R 4和R 5连接成环;R 6选自C1-C20的烷基或氢;A -选自常见有机或无机阴离子;
    或者,当Y 1、Y 2和Y 3均为O时,R 3选自被
    Figure PCTCN2022123814-appb-100008
    取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;所述的R 4、R 5、R 6和A -均如前所述;
    或者,当Y 1和Y 3各自独立地选自O或S,Y 2为NH时,R 3选自被基团C取代的C1-C20的烷基、C6-C20的芳基烷基或C6-C20的杂芳基烷基;;
    所述基团C为下列基团中一种或多种:羧基、烷基羰基氧基、氨基羰基、烷氧基羰基、烷硫基羰基。
  3. 如权利要求1所述核苷酸衍生物,如式(II 0)所示:
    Figure PCTCN2022123814-appb-100009
    式(II 0)中取代基的定义如权利要求1所定义的。
  4. 如权利要求1所述核苷酸衍生物,如式(III 0)所示:
    Figure PCTCN2022123814-appb-100010
    式(III 0)中取代基的定义如权利要求1所定义的。
  5. 如权利要求1所述核苷酸衍生物,如式(IV 0)所示:
    Figure PCTCN2022123814-appb-100011
    式(IV 0)中取代基的定义如权利要求1所定义的。
  6. 如权利要求1至2中任一项所述核苷酸衍生物,所述R 3选自
    Figure PCTCN2022123814-appb-100012
    取 代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;
    其中,R 4和R 5的定义如权利要求1所定义的。
  7. 如权利要求1至2中任一项所述核苷酸衍生物,所述R 3选自
    Figure PCTCN2022123814-appb-100013
    取代的下列基团:C1-C20的烷基、C2-C20烯烃基、C2-C20炔烃基、非芳香的C3-C8环烯烃基、3-8元杂环烷基、非芳香的且包含至少一个双键的3-8元杂环基、芳基;
    其中,R 4、R 5、R 6和A -的定义如权利要求1所定义的。
  8. 如权利要求1至2及权利要求6至7中任一项所述的核苷酸衍生物,其中,R 4和R 5各自独立地为氢或选自下列基团:C1-C8的烷基、C2-C8的烯基、C2-C8的炔基、苄基、或R 4和R 5连接成环。
  9. 如权利要求1及权利要求7和权利要求8中任一项所述的核苷酸衍生物,其中,R 4和R 5各自独立地为氢或选自下列基团:C1-C8的烷基、C2-C8的烯基、C2-C8的炔基、苄基、或R 4和R 5连接成环;R 6为氢。
  10. 如权利要求1所述的核苷酸衍生物,其中,R 01为氢,R 02为羟基,R 03为氢;R 04为氟;R 05为叠氮基。
  11. 如权利要求1至10中任一项所述的核苷酸衍生物,选自下列化合物:
    Figure PCTCN2022123814-appb-100014
    Figure PCTCN2022123814-appb-100015
    Figure PCTCN2022123814-appb-100016
    或者上述化合物的药学上可接受的盐。
  12. 包含如权利要求1至11中任一项所述的核苷酸衍生物、互变异构体、立体异构体、溶剂化物、或其药学上可接受盐的药物组合物。
  13. 权利要求1至11中任一项所述的核苷酸衍生物、互变异构体、立体异构体、溶剂化物、或其药学上可接受盐,或者权利要求12所述的药物组合物在制备抗病毒药物中的应用。
  14. 一种治疗或预防病毒感染的方法,包括对有相应需要的个体施用治疗有效量的权利要求1至11中任一项所述的核苷酸衍生物、互变异构体、立体异构体、溶剂化物、或其药学上可接受盐,或者权利要求12所述的药物组合物。
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