WO2003026665A1 - Derives de 2-phenylamino-4-(5-pyrazolylamino)-pyrimidine en tant qu'inhibiteurs de la kinase, notamment, des inhibiteurs de la kinase src - Google Patents

Derives de 2-phenylamino-4-(5-pyrazolylamino)-pyrimidine en tant qu'inhibiteurs de la kinase, notamment, des inhibiteurs de la kinase src Download PDF

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WO2003026665A1
WO2003026665A1 PCT/US2002/030980 US0230980W WO03026665A1 WO 2003026665 A1 WO2003026665 A1 WO 2003026665A1 US 0230980 W US0230980 W US 0230980W WO 03026665 A1 WO03026665 A1 WO 03026665A1
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alkyl
compound
cancer
compounds
cell
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Julie Dixon
William J. Scott
Jacques Dumas
Catherine Brennan
Holia Hatoum-Mokdad
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Bayer Pharmaceuticals Corporation
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00—Antineoplastic agents
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
    • C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
    • C07D233/56—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
    • C07D249/08—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
    • C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
    • C07D403/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/14—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D409/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms
    • C07D409/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings

Definitions

  • the present invention relates to 5-substituted pyrimidine compounds, and in particular, 2,4-diamine-substituted pyrimidine compounds, and pharmaceutical compositions thereof, and the use of such substituted pyrimidine compounds as inhibitors of src kinase enzymes.
  • Normal tissue homeostasis is achieved by an intricate balance between the rate of cell proliferation and cell death. Disruption of this balance, e.g., by increasing the rate of cell proliferation, modulating the rate of cell differentiation or decreasing the rate of cell death, can result in the abnormal growth of cells and is thought to be a major event in the development of cancer, as well as other cell proliferative disorders such as restenosis.
  • NSCLC non-small-cell lung cancer
  • Protein phosphorylation is the result of the transfer of a terminal phosphate of adenosine triphosphate to a particular amino acid of a protein. This transfer is catalyzed by enzymes termed kinases.
  • Protein kinases comprise a large superfamily of homologous proteins. They are related by their kinase or catalytic domains, which consists of approximately 250-300 amino acid residues. There are two main categories within the superfamily of protein kinases: the protein-serine/threonine kinses and the protein-tyrosine kinases (Hanks et al, (1995) FASEB J. 9:576)
  • kinases having an abnormal activity e.g., mutated kinases, or abnormal levels of kinases
  • oncogenes which are capable of transforming cells, are mutated forms of normal genes encoding kinases.
  • oncogenes include the pp60-v-src gene from the Rous avian sarcoma virus, which corresponds to the normal (i.e., proto-oncogene) gene pp60-c-src, containing a deletion that removes the C-terminal 18 amino acids of c-src.
  • Pp60-c-src is also referred to as "src kinase” or "src tyrosine kinase.” Phosphorylation of a tyrosine residue at position 527 of c-src protein causes a great reduction in its kinase activity, and this site is often altered in oncogenic derivatives of c-src (see, e.g., Brown et al, (1996) Biochem. Biophys. Acta 1287:121).
  • proto-oncogenes encoding tyrosine kinases which when mutated or over-expressed, cause cells to become transformed, include c-yes; c-fps (c-fes); c-abl and c-met. c-abl and c-met are associated with chronic myelogenous leukemia and osteosarcoma, respectively.
  • Proto-oncogenes encoding serine/threonine kinases include c-mos and c-raf (c-mil). Whereas the above-cited proto- oncogenes are intracellular transducers, other proto-oncogenes encode kinases which are cell-surface receptors.
  • Examples of proto-oncogenes encoding cell surface receptors with tyrosine kinase activity include c-fms (or Colony Stimulating Factor -1 (CSF-1) receptor); c- erbB, which is an epidermal growth factor receptor; c-neu (or erbB-2), erbB-3 or erbB-4 which are related to epidermal growth factor receptor; and c-ros, which is related to the insulin receptor.
  • CSF-1 Colony Stimulating Factor -1
  • kinases in particular tyrosine kinases.
  • Such inhibitors have been shown to be useful for the treatment of disease states characterized by uncontrolled cell proliferation, e.g., cancer, inflammation, psoriasis, pulmonary fibrosis, glomerulonephritis, atherosclerosis, osteoporosis and restenosis following angioplasty.
  • tyrosine kinase inhibitors with selectivity for the EGF receptor family have been shown to block tumor formation in animals, thus demonstrating their potential usefulness for directly suppressing tumor cell growth in the treatment of human cancer, especially breast carcinoma.
  • tumor metastasis and its associated angiogenesis has been shown to be inhibited by preventing the activation of the vascular endothelial growth factor receptor tyrosine kinase which indicates a utility for tyrosine kinase inhibitors in blocking separate events that occur during carcinogenesis.
  • protein phosphorylation e.g., tyrosine phosphorylation
  • the pp60c-src protein has significant structural homology to about ten proteins (collectively referred to as Src Family kinases or SFKs) which include: Lck, Fyn, Yes, Yrk, Blk, Fgr, Hck, Lyn, and Frk subfamily members Frk/Rak and Iyk/Bsk (Sawyer et al, (2001) Expert Opin. Investig. Drugs 10(7): 1327).
  • Src Family kinases has three major domains: src homology SHI, SH2, and SH3 domains. The SHI domain is most commonly called the catalytic domain or tyrosine kinase domain.
  • the SH3 domain is a binding region for proteins having proline-rich sequences. Both the SH2 and SH3 domains are noncatalytic, but are important in protein-protein recognition. SH2 domains are homologous motifs of approximately 100 amino acids, which recognize and bind to the phosphorylated sequences present on regulatory proteins and growth factor receptors (Anderson et al, Science, 1990, 250, 979).
  • One of the primary purposes of the src family phosphoprotein/SH2 domain interaction is to initiate the association of proteins into an activation complex, often around the intracellular domain of the receptor itself. This role of the src family SH2 domain mediates and organizes the ordered, physical assembly of the various proteins in the activation complex.
  • the Src family of protein kinases which all contain an SH2 domain, are involved in a number of cellular signalling pathways. For example, Src is involved in growth factor receptor signaling; integrin-mediated signaling; T- and B-cell activation; osteoclast activation; cell adhesion; cell motility and cell survival. It is known that the Src SH2 domain binds to several key receptor and nonreceptor tyrosine kinases such as tyrosine kinases containing receptors for PDGF, EGF, HER2/Neu (an oncogene form of EGF), Fibroblast Growth Factor (FGF), focal adhesion kinase, pi 30 protein, and p68 protein. In addition, src has been shown to be involved in the regulation of DNA synthesis, mitosis, and other cellular activities (see, e.g., Susa et al. (2000) Trends Pharm. Sciences 21 :489).
  • kinase inhibitors such as tyrosine kinase inhibitors
  • the invention provides compounds for regulating cellular processes involving a kinase such as a tyrosine kinase, in particular, a src kinase.
  • a kinase such as a tyrosine kinase, in particular, a src kinase.
  • the invention relates to a compound of the formula (I)
  • R 1 represents d- ⁇ alkyl, C3-6 cycloalkyl, adamantyl, phenyl, or a 5- membered heteroaromatic containing a single heteroatom selected from N, O, and
  • R 2 represents H, F, CI, or C 1-4 alkyl.
  • R 3 represents H, halogen, 0(CI alkyl), or
  • R 4 represents halogen, NO 2 , C 1-6 alkyl, NR 5 R 6 , O(CH 2 ) -CO 2 R 7 ,
  • R 5 and R 6 each independently represents H or C ⁇ -4 alkyl, or R 5 and R 6 may be joined, and taken together with the nitrogen atom to which they are attached, constitute a 5-6-membered nonaromatic heterocycle
  • R 7 represents H, C 1-6 alkyl, or phenyl.
  • R 8 represents H, phenyl, benzyl, or C ⁇ -6 alkyl.
  • R 9 represents C ⁇ -6 alkyl or phenyl.
  • R 3 and R 4 may be joined to form a 5-6 membered nonaromatic heterocycle in which up to 2 ring members are selected from O, S, S(O), S(O) 2 , and NR 5 .
  • the invention in another aspect, relates to a pharmaceutical composition
  • a pharmaceutical composition comprising a compound of formula (I) as described above, and a pharmaceutically acceptable carrier.
  • the invention provides methods for regulating cellular processes involving a kinase, such as a tyrosine kinase.
  • a kinase such as a tyrosine kinase.
  • the cellular process involves a src kinase.
  • the cellular process can be, e.g., cell proliferation or cell differentiation.
  • the invention provides methods for treating diseases associated with a kinase, e.g., diseases associated with an abnormal kinase activity or level, such as cancers, osteoporosis, and inflammatory disorders.
  • the invention also provides methods for treating diseases associated with abnormal cell proliferation and/or differentiation.
  • the method comprises administering to a subject in need thereof, a pharmaceutically efficient amount of a compound of the invention, such that the subject is treated.
  • kits comprising one or more compounds of the invention, optionally in a pharmaceutical composition.
  • the invention is based at least in part on the observation that 2,4-diamino substituted pyrimidine compounds inhibit the activity of src kinases. Exemplary compounds are described herein.
  • R 1 is preferably C ⁇ -6 alkyl, C 3-6 cycloalkyl, or phenyl; more preferably C ⁇ -6 alkyl or C -6 cycloalkyl; and most preferably C ⁇ -6 alkyl.
  • R 2 is preferably H or F.
  • R 3 is preferably H, CI, F, O(C ⁇ -4 alkyl), or C )-6 alkyl; more preferably H, O(Cj -4 alkyl), or C ⁇ -6 alkyl; and most preferably H or 0(Cu alkyl).
  • R 4 is preferably halogen, NO 2 , C 1-6 alkyl, NR 5 R 6 , O(CH 2 ) 1-4 -CO 2 R 7 , N(R 5 )C(O)CH 2 OR 8 , OC(O)R 9 , C(O)NR 5 R 6 or 0(C, 4 alkyl) optionally substituted by OH or phenoxy; it is more preferably C ⁇ -6 alkyl, NR 5 R 6 , N(R 5 )C(O)CH 2 OR 8 , C(O)NR 5 R 6 or O(C alkyl) optionally substituted by OH or phenoxy; and it is most preferably NR 5 R 6 , N(R 5 )C(O)CH 2 OR 8 or O(C alkyl) optionally substituted by OH or phenoxy.
  • the groups R 5 through R 9 have been defined above in the description of formula (I).
  • R 3 and R 4 may also preferably be joined to form a 5-6 membered nonaromatic heterocycle in which up to 2 ring members are selected from the group consisting of O, S, S(O), S(O) 2 , and NR 5 .
  • the compounds of the invention have been broadly defined in the summary above and in claim 1.
  • R 1 represents C 1- alkyl, C 3-6 cycloalkyl, or phenyl
  • R 2 represents H, CI, F, or C alkyl
  • R 3 represents H, CI, F, 0(C ⁇ 4 alkyl), or C 1-6 alkyl
  • R 4 represents halogen, NO 2 , C 1-6 alkyl, NR 5 R 6 , N(R 5 )C(O)CH 2 OR 8 , OC(O)R 9 , C(O)NR 5 R 6 , or 0(0] ⁇ alkyl) optionally substituted by OH or phenoxy
  • R 3 and R 4 are joined to form a 5- 6 membered nonaromatic heterocycle in which up to 2 ring members are selected from O, S, S(O), S(O) 2 , and NR 5 .
  • the compounds of the invention are described by formula (I) in which R 1 represents C ⁇ -6 alkyl or C 3-6 cycloalkyl; R 2 represents H or F; R 3 represents H, O(C 1-4 alkyl), or C ⁇ -6 alkyl; and R 4 represents C ⁇ -6 alkyl, NR 5 R 6 , N(R 5 )C(O)CH 2 OR 8 , C(O)NR 5 R 6 or O(C 1-4 alkyl) optionally substituted by OH or phenoxy.
  • R 1 represents C ⁇ -6 alkyl or C 3-6 cycloalkyl
  • R 2 represents H or F
  • R 3 represents H, O(C 1-4 alkyl), or C ⁇ -6 alkyl
  • R 4 represents C ⁇ -6 alkyl, NR 5 R 6 , N(R 5 )C(O)CH 2 OR 8 , C(O)NR 5 R 6 or O(C 1-4 alkyl) optionally substituted by OH or phenoxy.
  • the compounds of the invention are described by formula (I) in which R 1 represents C 1- alkyl; R 2 represents H or F; R 3 represents H or 0(C
  • the compounds of formula (I) are generally made by coupling a compound of formula (II) with a compound of formula (III)
  • Abnormal growth of cells means cell growth independent of normal regulatory mechanisms (e.g., loss of contact inhibition).
  • analog of a compound refers to a compound having a substantial structural similarity to a particular compound and having essentially the same type of biological activity as the compound.
  • antiproliferative therapeutic or compound refers to a compound or therapeutic which inhibits cell proliferation to at least some extent.
  • cytostatic when referring to the activity of a compound means that the compound causes the cell to cell cycle arrest, but it does not kill the cell. Thus, removal of the drug from the environment of the cell results in the resumption of cell proliferation.
  • derivative of a compound or of a small molecule refers to a compound which can be derived, e.g., by chemical synthesis, from the original compound.
  • a derivative of a compound has certain structural similarities with the compound.
  • Disease associated with an abnormal activity or level of a kinase refers to a disease in which an abnormal activity or protein level of a kinase is present in certain cells, and in which the abnormal activity or protein level of the kinase is at least partly responsible for the disease.
  • a “disease associated with a kinase” refers to a disease that can be treated with a kinase inhibitor.
  • Diseases associated with src kinase-mediated signaling refers to diseases which can be treated with an inhibitor of src kinase-mediated signaling. Such disease can, e.g., be associated with an abnormal src kinase activity or level.
  • Excessive cell proliferation used interchangeably herein with “hyper- proliferation” of cells refers to cells which divide more often than their normal or wild-type counterpart. Thus, cells are excessively proliferating when they double in less than 24 hours if their normal counterparts double in 24 hours. Excessive proliferation can be detected by simple counting of the cells, with or without specific dyes, or by detecting DNA replication or transcription, such as by measuring incorporation of a labeled molecule or atom into DNA or RNA.
  • Inhibiting cell proliferation refers to decreasing the rate of cell division, by interrupting or slowing down the cell cycle.
  • the term refers to complete blockage of cell proliferation, i.e., cell cycle arrest, as well as to a lengthening of the cell cycle.
  • the period of a cell cycle can be increased by about 10%, about 20%, about 30, 40, 50, or 100%.
  • the duration of the cell cycle can also be augmented by a factor of two, three, 4, 5, 10 or more.
  • Modulating cell differentiation refers to the stimulation or inhibition of cell differentiation.
  • Normalizing cell proliferation refers to reducing the rate of cell proliferation of a cell that proliferates excessively relative to that of its normal or wild-type counterpart, or increasing the rate of cell proliferation of a cell that proliferates poorly relative to its normal or wild-type counterpart.
  • a “patient” or “subject” to be treated by the subject method can mean either a human or non-human animal.
  • proliferative disorder refers to any disease/disorder of a tissue marked by unwanted or aberrant proliferation of at least some cells in the tissue. Such diseases include cancer, as well as benign diseases or disorders, such as warts or other benign tumors.
  • a “src inhibitor” is a compound which inhibits at least part of the activity of a src kinase in a cell.
  • the inhibition can be, at least about 20%, preferably at least about 40%, even more preferably at least about 50%, 70%, 80%, 90%, 95%, and most preferably at least about 98% of the activity of the src kinase.
  • Treating refers to preventing, curing or improving at least one symptom of a disease.
  • Me, Et, and Ph represent methyl, ethyl, and phenyl, respectively.
  • Alkyl means a hydrocarbon radical having up to a maximum of 12 carbon atoms, which may be linear or branched with single or multiple branching. Alkyl is especially lower alkyl. Examples of such alkyl groups are methyl, ethyl, propyl, isopropyl, n-butyl, sec-butyl, tertiary butyl, pentyl, isopentyl, hexyl, and isohexyl.
  • Halogen means fluorine, chlorine, bromine, or iodine but is especially fluorine, chlorine, or bromine.
  • Cycloalkyl is a saturated carbocycle that contains between 3 and 12 carbons but preferably 3 to 8 carbons. Examples include the cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl and cycloheptyl groups.
  • the term “optionally” means that the subsequent desribed event(s) may or may not occur, and includes both event(s), which occur, and event(s) that do not occur.
  • Examples of "5-membered heteroaromatic containing a single heteroatom selected from N, O, and S" include, but are not limited to, furanyl, pyrrolyl, and thienyl.
  • Examples of “5-6 membered nonaromatic heterocycle in which up to 2 ring members are selected from O, S, S(O), S(O) 2 , and NR 5 " include, but are not limited to, 1,3-dioxolanyl, 1 ,4-dioxanyl, tetrahydrofuranyl, piperdinyl, imidazolidinyl, pyrrolidinyl, mo ⁇ holinyl, thiomo ⁇ holinyl, and piperidinyl.
  • the present invention provides substituted pyrimidine compounds, e.g., 2,4-diamino substituted pyrimidine compounds, which are capable of inhibiting src kinase activity.
  • substituted pyrimidine compounds e.g., 2,4-diamino substituted pyrimidine compounds, which are capable of inhibiting src kinase activity.
  • the compounds of the invention have the IUPAC names set forth below:
  • Certain compounds of the present invention may exist in particular geometric or stereoisomeric forms.
  • the present invention contemplates all such compounds, including cis- and trans-isomers, R- and S-enantiomers, diastereomers, (D)-isomers, (L)-isomers, the racemic mixtures thereof, and other mixtures thereof, as falling within the scope of the invention.
  • Additional asymmetric carbon atoms may be present in a substituent such as an alkyl group. All such isomers, as well as mixtures thereof, are intended to be included in this invention.
  • a particular enantiomer of a compound of the present invention may be prepared by asymmetric synthesis, or by derivatization with a chiral auxiliary, where the resulting diastereomeric mixture is separated and the auxiliary group cleaved to provide the pure desired enantiomers.
  • the molecule contains a basic functional group such as amino, or an acidic functional group such as carboxyl, diastereomeric salts are formed with an appropriate optically-active acid or base, followed by resolution of the diastereomers thus formed by fractional crystallization or chromatographic means well known in the art, and subsequent recovery of the pure enantiomers.
  • Contemplated equivalents of the compounds described above include compounds which otherwise correspond thereto, and which have the same general properties thereof
  • the compounds of the present invention may be prepared by the methods illustrated in the general reaction schemes as described below, or by modifications thereof, using readily available starting materials, reagents and conventional synthesis procedures known to those skilled in the art. In these reactions, it is also possible to make use of variants which are in themselves known, but are not mentioned here.
  • the compounds of the invention can be used for treating a disease or condition (generally referred to herein as " disease") associated with a kinase, such as a disease associated with an abnormal activity or level of a kinase.
  • a disease or condition generally referred to herein as " disease”
  • the kinase is a tyrosine kinase, such as a src tyrosine kinase.
  • the compounds of the invention can be used for treating diseases that are associated with a component of the signal transduction pathway in which a kinase is involved.
  • a cell proliferative disease resulting from over-expression of a signal transduction molecule or cell surface receptor that is in the same signal transduction pathway as that in which a kinase which can be inhibited by a compound of the invention is present can also be treated with the compounds of the invention.
  • the compounds of the invention are expected to be effective against a broad range of target cells, and not only target cells having an abnormal activity or level of a kinase.
  • target cell refers to a cell towards which a compound is targeted.
  • at least some of the compounds of the invention may also be effective against cells which proliferate and/or differentiate normally, i.e., wild-type cells. For example, certain compounds could be used to arrest cell proliferation, even if the cell proliferation is not abnormal.
  • the compounds of the invention are useful for treating a disease associated with a src kinase.
  • Src kinases are involved in various cellular functions, including cell proliferation and transformation; cell adhesion, migration and chemotaxis; intracellular trafficking; and cell survival. Accordingly, diseases that can be treated according to the invention include those which are dysfunctional in any of these cellular functions. Exemplary diseases are provided below.
  • a therapeutic method comprises administering to a subject having a disease associated with a kinase, a pharmaceutically effective amount of a compound of the invention, such that the disease is treated.
  • the subject is preferably a mammal, e.g., a human, non-human primate, bovine, ovine, porcine, feline, canine, mouse or rat.
  • the compounds can be administered via various routes depending on the disease to be treated. Methods of administration are further described herein.
  • Non-mammalian cells which share essentially the same signal transduction pathways as those in mammalian cells, e.g., yeast cells, can also be target cells of the invention.
  • Compounds of the invention may specifically inhibit the activity of a single kinase, e.g., src kinase, or they may inhibit the activity of more than one kinase or more than one type of kinase. Accordingly, a compound of the invention could be used for treating one or more diseases associated with one or more kinases.
  • the efficacy of the compounds of the invention against a broad range of target cells allows for broad applications for these compounds.
  • Src tyrosine kinase has specifically been implicated in the development, growth, progression, and metastasis of a number of human cancers such as colon, breast, pancreas and brain (see, e.g., Irby and Yeatman (2000) Oncogene 19:5636), and these cancers are expected to be treatable with the compounds of the invention.
  • a src kinase activity from 4-20 fold higher than normal has been found in mammary carcinomas (Irby and
  • c-src has also frequently been implicated in the initiation and progression of human colon cancer and in resultant metastases (see, e.g., Cartwright et al (1994) J. Clin. Invest.
  • Src is increased 5-8 fold in the majority of colon tumors. Elevated src activity is also present in pre-cancerous colon lesions, e.g., adenomatous polyps (Pena et al. (1995) Gastroenterol. 108:117).
  • pancreatic cancer Flossmann-Kast et al
  • Src probably also contributes to tumor growth in synergy with receptor tyrosine kinases, such as c-met and those of the ErbB family (Biscardi et al. (1999) Adv. Cancer Res. 76: 6). Accordingly, all of the above are exemplary cancers that can be treated with the compounds of the invention.
  • the compounds of the invention can also be used to treat diseases associated with defects in cell adhesion and motility, such as angiogenesis, inflammation and bone reso ⁇ tion. Src has been shown to play a role in signal transduction via cell-adhesion receptors (integrins).
  • Src dependent cell migration is important for the function of many cell types, e.g., the motility of osteoclasts and metastasizing cells (Chellaiah et al (2000) J. Biol. Chem. 275:1 1993 and Susa and Teri (2000) Drug News Pe ⁇ ect. 13:169). Src dependent cell migration may also be important for the recruitment of vascular smooth muscle cell precursors in response to PDGF produced by endothelial cells during blood vessel formation (Hirschi et al (1998) J. Cell. Biol. 141 :805).
  • Src kinase is also involved in endocytosis, e.g., transcytosis, such as that which occurs in osteoclasts (Nesbitt and Horton (1997) Science 276:266). Src assists endocytosis of certain growth factor receptors, e.g., EGF receptors (Wilde et al. (1999) Cell 96:677). Blood vessel hype ⁇ ermeability induced by vascular endothelial growth factor (VEGF) is also dependent on src (Eliceiri et al. (1999) Mol. Cell 4:915). Src has been shown to also be involved in cell survival (reviewed in Susa et al (2000) Trends in Pharmacol. Sci. 21 :489). Accordingly, diseases related to any of these exemplary src biological activities can be treated with the compounds of the invention.
  • endocytosis e.g., transcytosis, such as that which occurs in osteoclasts (Nes
  • a preferred use for the compounds of the invention is for the treatment of osteoporosis, which involves bone reso ⁇ tion.
  • Osteoporosis is a widespread disease of low bone mass that particularly affects post-menopausal women (see, e.g., Go wen et al. (2000) Emerging Drugs 5:1).
  • the role of src in bone metabolism was first demonstrated in src- deficient mice and has been confirmed using small molecular weight inhibitors in animal models of osteoporosis.
  • Src-deficient mice have defective bone reso ⁇ tion, resulting in excessive bone mass and osteopetrosis (see, e.g., Thomas and Brugge (1997) Annu. Rev. Cell. Dev. Biol., 13: 513).
  • src in bone reso ⁇ tion
  • a src inhibitor has been shown to reduce bone reso ⁇ tion in an animal model of osteoporosis (Missbach et al. (1992) Bone 24:437).
  • the disorder is believed to be caused by dysfunctions in osteoclasts and osteoblasts, as well as in osteoclast survival and osteoclast formation (reviewed in Susa et al, supra).
  • Other diseases that may also be treated according to the invention include other types of malignancies, e.g., cancers of the brain, genitourinary tract, prostate, skin, lymphatic system, rectum, stomach, larynx, ovary, bladder, and liver.
  • cancers include histiocytic lymphoma, lung adenocarcinoma, pancreatic carcinoma, colo-rectal carcinoma, bladder cancers, head and neck cancers, acute and chronic leukemias, melanomas, neurological tumor, myeloid leukemias (for example, acute myelogenousleukemia), sarcomas, thyroid follicular cancer, and myelodysplastic syndrome.
  • the compounds of the invention can also be used for treating disease associated with abnormal activity and/or expression of members of a growth factor family or receptors thereof.
  • compounds of the invention are expected to be effective against diseases associated with a defect in a growth factor or receptor of the EGF receptor family, such as Neu-erb2-related genes.
  • the compounds of the invention are believed to be effective against the following diseases.
  • amplification and/or over-expression of human erbB2 gene has been shown to correlate with a poor prognosis in breast and ovarian cancers, in particular, carcinomas (see, e.g., Slamon et al, Science 235:177-82 (1987); Slamon et al, Science 244:707-12 (1989)).
  • Overexpression of erbB2 has also been correlated with other carcinomas including carcinomas of the stomach, endometrium, salivary gland, lung, kidney, colon and bladder.
  • ErbBl has been causally implicated in human malignancy, e.g., aggressive carcinomas of the breast, bladder, lung, and stomach.
  • ErbB gene amplification or overexpression, or a combination of both has also been demonstrated in squamous cell carcinomas and glioblastomas (Libermann, T. A., Nusbaum, H. R., Razon, N., Kris, R., Lax, I., Soreq, H., Whittle, N., Waterfield, M.D., Ullrich, A. & Schlessinger, J., 1985, Nature 313:144-147). Accordingly, the compounds of the invention are believed to be useful for treating these malignancies. ErbB3 has been found to be overexpressed in breast (Lemoine et al, Br. J. Cancer 66:1116-21 (1992)), gastrointestinal (Poller et al, J.
  • the hyper-proliferative disorders that can be treated by the disclosed substituted pyrimidine compounds, salts, prodrugs and compositions thereof include, but are not limited to solid tumors, such as cancers of the breast, respiratory tract, brain, reproductive organs, digestive tract, urinary tract, eye, liver, skin, head and neck, thyroid, parathyroid and their distant metastases. Those disorders also include, but are not limited to lymphomas, sarcomas, and leukemias.
  • breast cancer examples include, but are not limited to invasive ductal carcinoma, invasive lobular carcinoma, ductal carcinoma in situ, and lobular carcinoma in situ.
  • cancers of the respiratory tract include, but are not limited to small-cell and non-small-cell lung carcinoma, as well as bronchial adenoma and pleuropulmonary blastoma.
  • brain cancers include, but are not limited to brain stem and hypophtalmic glioma, cerebellar and cerebral astrocytoma, medulloblastoma, ependymoma, as well as neuroectodermal and pineal tumor.
  • Tumors of the male reproductive organs include, but are not limited to prostate and testicular cancer.
  • Tumors of the female reproductive organs include, but are not limited to endometrial, cervical, ovarian, vaginal, and vulvar cancer, as well as sarcoma of the uterus.
  • Tumors of the digestive tract include, but are not limited to anal, colon, colorectal, esophageal, gallblader, gastric, pancreatic, rectal, small-intestine, and salivary gland cancers.
  • Tumors of the urinary tract include, but are not limited to bladder, penile, kidney, renal pelvis, ureter, and urethral cancers.
  • Eye cancers include, but are not limited to intraocular melanoma and retinoblastoma.
  • liver cancers include, but are not limited to hepatocellular carcinoma
  • liver cell carcinomas with or without fibrolamellar variant liver cell carcinomas with or without fibrolamellar variant
  • cholangiocarcinoma intrahepatic bile duct carcinoma
  • mixed hepatocellular cholangiocarcinoma mixed hepatocellular cholangiocarcinoma
  • Skin cancers include, but are not limited to squamous cell carcinoma, Kaposi's sarcoma, malignant melanoma, Merkel cell skin cancer, and non-melanoma skin cancer.
  • Head-and-neck cancers include, but are not limited to laryngeal / hypopharyngeal / nasopharyngeal / oropharyngeal cancer, and lip and oral cavity cancer.
  • Lymphomas include, but are not limited to AIDS-related lymphoma, non-Hodgkin's lymphoma, cutaneous T-cell lymphoma, Hodgkin's disease, and lymphoma of the central nervous system.
  • Sarcomas include, but are not limited to sarcoma of the soft tissue, osteosarcoma, malignant fibrous histiocytoma, lymphosarcoma, and rhabdomyosarcoma.
  • Leukemias include, but are not limited to acute myeloid leukemia, acute lymphoblastic leukemia, chronic lymphocytic leukemia, chronic myelogenous leukemia, and hairy cell leukemia. These disorders have been well characterized in man, but also exist with a similar etiology in other mammals, and can be treated by pharmaceutical compositions of the present invention.
  • proliferative disorders that can be treated according to the invention include non malignant cell proliferative disorders, such as those associated with an abnormal production of, or response to a growth factor, e.g., platelet derived growth factor (PDGF), fibroblast derived growth factor (FGF), epidermal derived growth factor (EGF) and vascular endothelial growth factor (VEGF).
  • a growth factor e.g., platelet derived growth factor (PDGF), fibroblast derived growth factor (FGF), epidermal derived growth factor (EGF) and vascular endothelial growth factor (VEGF).
  • PDGF platelet derived growth factor
  • FGF fibroblast derived growth factor
  • EGF epidermal derived growth factor
  • VEGF vascular endothelial growth factor
  • exemplary diseases include restinosis, glomerulonephritis, neurofibromatosis, glaucoma, psoriasis, rheumatoid arthritis, inflammatory bowel
  • Restenosis following coronary angioplasty is one major unsolved problem of interventional cardiology.
  • 25-34% fail within the first five years, of which most occur during the first year, due to restenosis (Geschwind H.J. (1995) Interv. Cardiol. 8:756 and The Merck Manual of Diagnosis and Therapy, 16 th Ed. (1992) Merck Res. Lab., p. 406.
  • the process of restenosis involves the reocclusion of an atherosclerotic artery which in many cases is due to the proliferation of smooth muscle cells which is mediated by growth factors such as PDGF and FGF.
  • the compounds of the invention are used for treating inflammatory diseases, e.g., rheumatoid arthritis (R.A.).
  • inflammatory diseases e.g., rheumatoid arthritis (R.A.).
  • Synovial tissues of RA patients express high levels of FGF and PDGF compared with synovial tissues of osteoarthritis patients, a non invasive joint disease (Sano et al, J. Cell. Biol. 110:1417-1426, 1990).
  • PDGF and FGF play a role in generating an invasive tumor-like behavior in arthritic joints of RA synovial connective tissues (Sano et al, J. Clin. Invest. 91 :553-565 1993).
  • the compounds of the invention are useful for treating smooth muscle cell hyper-proliferation, at least in part since PDGF is considered to be a principal growth-regulatory molecule responsible for smooth muscle cell proliferation.
  • PDGF is considered to be a principal growth-regulatory molecule responsible for smooth muscle cell proliferation.
  • One smooth muscle disorder is atherosclerosis, which is a disease characterized by focal thickening of the inner portion of the artery wall, predisposing an individual to myocardial infarction (heart attack), cerebral infarction (stroke), hypertension (high blood pressure) and gangrene of the extremities.
  • atherosclerosis which is a disease characterized by focal thickening of the inner portion of the artery wall, predisposing an individual to myocardial infarction (heart attack), cerebral infarction (stroke), hypertension (high blood pressure) and gangrene of the extremities.
  • lesions of atherosclerosis are surrounded by large amounts of lipid-laden macrophages, varying numbers of lymphocyte
  • PDGF has been found in numerous cells in such lesions, and it is believed that PDGF plays a critical role in the atherosclerosis disease process.
  • Other smooth muscle diseases include diabetic vascular pathologies.
  • Both FGF and VEGF are potent angiogenic factors that induce formation of new capillary blood vessels. Accordingly, the compounds of the invention may be useful in inhibiting vascularization, e.g., in tumors.
  • the instant compounds may also be useful in the treatment of certain viral infections, in particular in the treatment of hepatitis C or delta and related viruses (Glenn et al. Science, 256:1331-1333 (1992)). Numerous viruses also induce non cancerous cell proliferation. Examples include papilloma viruses (HPV), which create skin lesions. Such viral infections may also be treatable with the compositions of the invention.
  • the compounds of the invention can also be used for treatment of hype ⁇ roliferative cutaneous diseases, e.g., keratosis and psoriasis. Also within the scope of the invention are methods for inhibiting growth of non- mammalian cells, which have similar signal transduction pathways as those in mammalian cells. Exemplary cells include yeast cells. Accordingly, the compounds of the invention can be used as anti-fungal agents to treat fungal infections on animals, e.g., humans. The compounds can also be used for stopping fungus growth on objects, e.g., mold or mildew growth on shower curtains.
  • objects e.g., mold or mildew growth on shower curtains.
  • Salts, especially pharmaceutically acceptable salts, of the compounds of the invention such as, for example, organic or inorganic acid addition salts, are also provided by the invention.
  • Suitable inorganic acids include but are not limited to halogen acids (such as hydrochloric acid), sulfuric acid, or phosphoric acid.
  • Suitable organic acids include but are not limited to carboxylic, phosphonic, sulfonic, or sulfamic acids, with examples including acetic acid, propionic acid, octanoic acid, decanoic acid, dodecanoic acid, glycolic acid, lactic acid, 2- or 3-hydroxybutyric acid, ⁇ -aminobutyric acid (GAB A), gluconic acid, glucosemonocarboxylic acid, fumaric acid, succinic acid, adipic acid, pimelic acid, suberic acid, azeiaic acid, malic acid, tartaric acid, citric acid, glucaric acid, galactaric acid, amino acids (such as glutamic acid, aspartic acid, N-methylglycine, acetytaminoacetic acid, N- acetylasparagine or N-acetylcysteine), pyruvic acid, acetoacetic acid, phosphoserine, and 2- or 3-
  • prodrugs Formation of prodrugs is well known in the art in order to enhance the properties of the parent compound; such properties include solubility, abso ⁇ tion, biostability and release time (see “Pharmaceutical Dosage Form and Drug Delivery Systems " (Sixth Edition), edited by Ansel et al, publ. by Williams & Wilkins, pgs. 27-29, (1995)).
  • prodrugs of the disclosed 2,4-diamino-pyrimidine compounds can be designed to take advantage of the major drug biotransformation reactions and are also to be considered within the scope of the invention.
  • the invention also includes pharmaceutical compositions comprising one or more of the compounds of the invention, or their salts or prodrugs forms thereof, with a pharmaceutically acceptable ingredient.
  • compositions can be prepared so that they may be administered orally, dermally, parenterally, nasally, ophthalmically, otically, sublingually, rectally or vaginally.
  • Dermal administration includes topical application or transdermal administration.
  • Parenteral administration includes intravenous, intraarticular, intramuscular, and subcutaneous injections, as well as use of infusion techniques.
  • One or more compounds of the invention may be present in association with one or more non-toxic pharmaceutically acceptable ingredients and optionally, other active anti-proliferative agents, to form the pharmaceutical composition.
  • These compositions can be prepared by applying known techniques in the art such as those taught in Remington's Pharmaceutical Sciences (Fourteenth Edition), Managing Editor, John E. Hoover, Mack Publishing Co., (1970) or Pharmaceutical Dosage Form and Drug Delivery Systems (Sixth Edition), edited by Ansel et al, publ. by Williams & Wilkins, (1995).
  • Commonly used pharmaceutical ingredients which can be used as appropriate to formulate the composition for its intended route of administration include: acidifying agents, examples include but are not limited to acetic acid, citric acid, fumaric acid, hydrochloric acid, nitric acid; alkalinizing agents, examples include but are not limited to ammonia solution, ammonium carbonate, diethanolamine, monoethanolamine, potassium hydroxide, sodium borate, sodium carbonate, sodium hydroxide, triethanolamine, trolamine; adsorbents, examples include but are not limited to powdered cellulose and activated charcoal; aerosol propellants, examples include but are not limited to carbon dioxide, CC1 2 F 2 , F C1C- CC1F 2 and CC1F 3 ; air displacement agents, examples include but are not limited to nitrogen and argon; antifungal preservatives, examples include but are not limited to benzoic acid, butylparaben, ethylparaben, methylparaben, propylparaben, sodium benzo
  • caramel and ferric oxide red examples include but are not limited to bentonite; emulsifying agents, examples include but are not limited to acacia, cetomacrogol, cetyl alcohol, glyceryl monostearate, lecithin, sorbitan monooleate, polyethylene 50 stearate; encapsulating agents, examples include but are not limited to gelatin and cellulose acetate phthalate; flavorants, examples include but are not limited to anise oil, cinnamon oil, cocoa, menthol, orange oil, peppermint oil and vanillin; humectants, examples include but are not limited to glycerin, propylene glycol and sorbitol; levigating agents, examples include but are not limited to mineral oil and glycerin; oils, examples include but are not limited to arachis oil, mineral oil, olive oil, peanut oil, sesame oil and vegetable oil; ointment bases, examples include but are not limited to lanolin, hydrophil
  • compositions can take the form of aerosols, capsules, creams, elixirs, emulsions, foams, gels, granules, inhalants, lotions, magmas, ointments, peroral solids, powders, sprays, syrups, suppositories, suspensions, tablets and tinctures.
  • the therapeutic methods of the invention generally comprise administering to a subject in need thereof, a pharmaceutically effective amount of a compound.
  • the compounds of the invention can be administered in a amount effective to inhibit the activity of a kinase, e.g., a tyrosine kinase, such as src kinase.
  • the compounds of the invention can also be administered in a "growth inhibitory amount," i.e., an amount of the compound which is pharmaceutically effective to inhibit or decrease proliferation of target cells.
  • the compounds can also be administered in a "differentiation modulating amount",, e.g., “differentiation-inducing amount” or “differentiation-inhibiting amount,” which is an amount of the compound which is pharmaceutically effective to modulate differentiation of target cells.
  • the compounds of this invention may be administered to mammals, preferably humans, either alone or, preferably, in combination with pharmaceutically acceptable carriers, excipients or diluents, in a pharmaceutical composition, according to standard pharmaceutical practice.
  • the compounds can be administered orally or parenterally, including the intravenous, intramuscular, intraperitoneal, subcutaneous, rectal and topical routes of administration.
  • Toxicity and therapeutic efficacy of the compounds can be determined by standard pharmaceutical procedures in cell cultures or experimental animals, e.g., for determining the LD 50 (the dose lethal to 50% of the population) and the ED 50 (the dose therapeutically effective in 50% of the population).
  • the dose ratio between toxic and therapeutic effects is the therapeutic index and it can be expressed as the ratio LD50/ED5 0 .
  • Compounds which exhibit large therapeutic indices are preferred. While compounds that exhibit toxic side effects may be used, care should be taken to design a delivery system that targets such reagents to the site of affected tissue in order to minimize potential damage to normal cells and, thereby, reduce side effects. Data obtained from cell culture assays and animal studies can be used in formulating a range of dosage for use in humans.
  • the dosage of such reagents lies preferably within a range of circulating concentrations that include the ED 50 with little or no toxicity.
  • the dosage may vary within this range depending upon the dosage form employed and the route of administration utilized.
  • the therapeutically effective dose can be estimated initially from cell culture assays.
  • a dose may be formulated in animal models to achieve a circulating plasma concentration range that includes the IC 50 (i.e., the concentration of the test compound which achieves a half- maximal inhibition of symptoms) as determined in cell culture. Based on these assays, it is possible to derive an appropriate dosage for administration to subjects by combining IC 50 data with appropriate pharmacokinetic evaluation.
  • compositions containing a compound of the invention may be in a form suitable for oral use, for example, as tablets, troches, lozenges, aqueous or oily suspensions, dispersible powders or granules, emulsions, hard or soft capsules, or syrups or elixirs.
  • Compositions intended for oral use may be prepared according to any method known to the art for the manufacture of pharmaceutical compositions and such compositions may contain one or more agents selected from the group consisting of sweetening agents, flavoring agents, coloring agents and preserving agents in order to provide pharmaceutically elegant and palatable preparations. Tablets contain the active ingredient in admixture with non-toxic pharmaceutically acceptable excipients which are suitable for the manufacture of tablets.
  • excipients may be for example, inert diluents, such as calcium carbonate, sodium carbonate, lactose, calcium phosphate or sodium phosphate; granulating and disintegrating agents, for example, microcrystalline cellulose, sodium crosscarmellose, corn starch, or alginic acid; binding agents, for example starch, gelatin, polyvinyl-pyrrolidone or acacia, and lubricating agents, for example, magnesium stearate, stearic acid or talc.
  • the tablets may be uncoated or they may be coated by known techniques to mask the unpleasant taste of the drug or delay disintegration and abso ⁇ tion in the gastrointestinal tract and thereby provide a sustained action over a longer period.
  • a water soluble taste masking material such as hydroxypropylmethyl-cellulose or hydroxypropylcellulose, or a time delay material such as ethyl cellulose, cellulose acetate buryrate may be employed.
  • Formulations for oral use may also be presented as hard gelatin capsules wherein the active ingredient is mixed with an inert solid diluent, for example, calcium carbonate, calcium phosphate or kaolin, or as soft gelatin capsules wherein the active ingredient is mixed with water soluble carrier such as polyethyleneglycol or an oil medium, for example peanut oil, liquid paraffin, or olive oil.
  • an inert solid diluent for example, calcium carbonate, calcium phosphate or kaolin
  • water soluble carrier such as polyethyleneglycol or an oil medium, for example peanut oil, liquid paraffin, or olive oil.
  • Aqueous suspensions contain the active material in admixture with excipients suitable for the manufacture of aqueous suspensions.
  • excipients are suspending agents, for example sodium carboxymethylcellulose, methylcellulose, hydroxypropylmethylcellulose, sodium alginate, polyvinyl-pyrrolidone, gum tragacanth and gum acacia; dispersing or wetting agents may be a naturally-occurring phosphatide, for example lecithin, or condensation products of an alkylene oxide with fatty acids, for example polyoxyethylene stearate, or condensation products of ethylene oxide with long chain aliphatic alcohols, for example heptadecaethylene-oxycetanol, or condensation products of ethylene oxide with partial esters derived from fatty acids and a hexitol such as polyoxyethylene sorbitol monooleate, or condensation products of ethylene oxide with partial esters derived from fatty acids and hexitol anhydrides, for example polyethylene sorbitan monoo
  • the aqueous suspensions may also contain one or more preservatives, for example ethyl, or n-propyl p- hydroxybenzoate, one or more coloring agents, one or more flavoring agents, and one or more sweetening agents, such as sucrose, saccharin or aspartame.
  • preservatives for example ethyl, or n-propyl p- hydroxybenzoate
  • coloring agents for example ethyl, or n-propyl p- hydroxybenzoate
  • flavoring agents for example ethyl, or n-propyl p- hydroxybenzoate
  • sweetening agents such as sucrose, saccharin or aspartame.
  • Oily suspensions may be formulated by suspending the active ingredient in a vegetable oil, for example arachis oil, olive oil, sesame oil or coconut oil, or in mineral oil such as liquid paraffin.
  • the oily suspensions may contain a thickening agent, for example beeswax, hard paraffin or cetyl alcohol.
  • Sweetening agents such as those set forth above, and flavoring agents may be added to provide a palatable oral preparation.
  • These compositions may be preserved by the addition of an anti-oxidant such as butylated hydroxyanisol or alpha-tocopherol.
  • Dispersible powders and granules suitable for preparation of an aqueous suspension by the addition of water provide the compound of the invention in admixture with a dispersing or wetting agent, suspending agent and one or more preservatives. Suitable dispersing or wetting agents and suspending agents are exemplified by those already mentioned above. Additional excipients, for example sweetening, flavoring and coloring agents, may also be present. These compositions may be preserved by the addition of an anti- oxidant such as ascorbic acid. Pharmaceutical compositions of the invention may also be in the form of an oil-in- water emulsions.
  • the oily phase may be a vegetable oil, for example olive oil or arachis oil, or a mineral oil, for example liquid paraffin or mixtures of these.
  • Suitable emulsifying agents may be naturally-occurring phosphatides, for example soy bean lecithin, and esters or partial esters derived from fatty acids and hexitol anhydrides, for example sorbitan monooleate, and condensation products of the said partial esters with ethylene oxide, for example polyoxyethylene sorbitan monooleate.
  • the emulsions may also contain sweetening, flavouring agents, preservatives and antioxidants.
  • Syrups and elixirs may be formulated with sweetening agents, for example glycerol, propylene glycol, sorbitol or sucrose. Such formulations may also contain a demulcent, a preservative, flavoring and coloring agents and antioxidant.
  • sweetening agents for example glycerol, propylene glycol, sorbitol or sucrose.
  • Such formulations may also contain a demulcent, a preservative, flavoring and coloring agents and antioxidant.
  • compositions may be in the form of sterile injectable aqueous solutions.
  • acceptable vehicles and solvents that may be employed are water, Ringer's solution ethanol, cremophore and isotonic sodium chloride solution.
  • Sterile injectable preparation may also be a sterile injectable oil-in-water microemulsion where the compound of the invention is dissolved in the oily phase.
  • the active ingredient may be first dissolved in a mixture of soybean oil and lecithin.
  • the oil solution then introduced into a water and glycerol mixture and processed to form a microemulation.
  • the injectable solutions or microemulsions may be introduced into a patient's blood- stream by local bolus injection.
  • a continuous intravenous delivery device may be utilized.
  • An example of such a device is the Deltec
  • the pharmaceutical compositions may be in the form of a sterile injectable aqueous or oleagenous suspension for intramuscular and subcutaneous administration.
  • This suspension may be formulated according to the known art using those suitable dispersing or wetting agents and suspending agents which have been mentioned above.
  • the sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally-acceptable diluent or solvent, for example as a solution in 1,3-butane diol.
  • sterile, fixed oils are conventionally employed as a solvent or suspending medium. For this pu ⁇ ose any bland fixed oil may be employed including synthetic mono- or diglycerides.
  • fatty acids such as oleic acid find use in the preparation of injectables.
  • compositions may also be administered in the form of a suppositories for rectal administration of the drug.
  • a suitable non-irritating excipient which is solid at ordinary temperatures but liquid at the rectal temperature and will therefore melt in the rectum to release the drug.
  • suitable non-irritating excipient include cocoa butter, glycerinated gelatin, hydrogenated vegetable oils, mixtures of polyethylene glycols of various molecular weights and fatty acid esters of polyethylene glycol.
  • suitable non-irritating excipient which is solid at ordinary temperatures but liquid at the rectal temperature and will therefore melt in the rectum to release the drug.
  • Such materials include cocoa butter, glycerinated gelatin, hydrogenated vegetable oils, mixtures of polyethylene glycols of various molecular weights and fatty acid esters of polyethylene glycol.
  • creams, ointments, jellies, solutions or suspensions, etc. containing the compound of the invention can be employed.
  • topical application shall include mouth washe
  • the compounds for the present invention can be administered in intranasal form via topical use of suitable intranasal vehicles and delivery devices, or via transdermal routes, using those forms of transdermal skin patches well known to those of ordinary skill in the art.
  • the dosage administration will preferably be continuous rather than intermittent throughout the dosage regimen.
  • the compounds of the invention may also be co-administered with other well known therapeutic agents that are selected for their particular usefulness against the condition that is being treated.
  • the compounds may be administered simultaneously or sequentially.
  • the instant compounds may be useful in combination with known anti-cancer and cytotoxic agents.
  • the instant compounds may be useful in combination with agents that are effective in the treatment and prevention of osteoporosis, inflammation, neurofibromatosis, restinosis, and viral infections.
  • the instant compounds may also be useful in combination with inhibitors of other components of signaling pathways of cell surface growth factor receptors.
  • Drugs can be co-administered to a subject being treated with a compound of the invention include antineoplastic agents selected from vinca alkaloids, epipodophyllotoxins, anthracycline antibiotics, actinomycin D, plicamycin, puromycin, gramicidin D, taxol, colchicine, cytochalasin B, emetine, maytansine, or amsacrine.
  • antineoplastic agents selected from vinca alkaloids, epipodophyllotoxins, anthracycline antibiotics, actinomycin D, plicamycin, puromycin, gramicidin D, taxol, colchicine, cytochalasin B, emetine, maytansine, or amsacrine.
  • chemotherapeutic agents are described in the "Physicians' Desk Reference” (PDR), e.g., 1996 edition (Medical Economics Company, Montvale, N.J. 07645-1742, USA).
  • Optional anti-proliferative agents that can be added to the composition include but are not limited to compounds listed on the cancer chemotherapy drug regimens in the 11 th Edition of the Merck Index, (1996), which is hereby inco ⁇ orated by reference, such as asparaginase, bleomycin, carboplatin, carmustine, chlorambucil, cisplatin, colaspase, cyclophosphamide, cytarabine, dacarbazine, dactinomycin, daunorubicin, doxorubicin (adriamycine), epirubicin, etoposide, 5-fluorouracil, hexamethylmelamine, hydroxyurea, ifosfamide, irinote
  • anti-proliferative agents suitable for use with the composition of the invention include but are not limited to those compounds acknowldeged to be used in the treatment of neoplastic diseases in Goodman and Gilman's The Pharmacological Basis of Therapeutics (Ninth Edition), editor Molinoff et al, publ.
  • anti-proliferative agents suitable for use with the composition of the invention include but are not limited to other anti-cancer agents such as epothilone, irinotecan, raloxifen and topotecan.
  • the daily oral dosage regimen will preferably be from 0.01 to 200 mg/kg of total body weight.
  • the daily dosage for administration by injection including intravenous, intramuscular, subcutaneous and parenteral injections, and use of infusion techniques will preferably be from 0.01 to 200 mg/kg of total body weight.
  • the daily rectal dosage regimen will preferably be from 0.01 to 200 mg/kg of total body weight.
  • the daily vaginal dosage regimen will preferably be from 0.01 to 200 mg/kg of total body weight.
  • the daily topical dosage regimen will preferably be from 0.1 to 200 mg administered between one to four times daily.
  • the transdermal concentration will preferably be that required to maintain a daily dose of from 0.01 to 200 mg/kg.
  • the daily inhalation dosage regimen will preferably be from 0.01 to 100 mg/kg of total body weight.
  • the particular method of administration will depend on a variety of factors, all of which are considered routinely when administering therapeutics. It will also be understood, however, that the specific dose level for any given patient will depend upon a variety of factors, including, but not limited to the activity of the specific compound employed, the age of the patient, the body weight of the patient, the general health of the patient, the gender of the patient, the diet of the patient, time of administration, route of administration, rate of excretion, drug combinations, and the severity of the condition undergoing therapy.
  • the optimal course of treatment i.e., the mode of treatment and the daily number of doses of a compound of formulae (I) or (II) or a pharmaceutically acceptable salt thereof given for a defined number of days
  • Radiation therapy including x-rays or gamma rays which are delivered from either an externally applied beam or by implantation of tiny radioactive sources, may also be used in combination with a compound of the invention to treat a disease, e.g., cancer.
  • the daily dosage will normally be determined by the prescribing physician with the dosage generally varying according to the age, weight, and response of the individual patient, as well as the severity of the patient's symptoms.
  • compounds of the invention and/or materials and reagents required for administering the compounds of the invention may be assembled together in a kit.
  • the liquid solution preferably is an aqueous solution, with a sterile aqueous solution being particularly preferred.
  • the kit may further comprise one or more other drugs, e.g., chemo- or radiotherapeutic agent.
  • drugs e.g., chemo- or radiotherapeutic agent.
  • These normally will be a separate formulation, but may be formulated into a single pharmaceutically acceptable composition.
  • the container means may itself be geared for administration, such as an inhalant, syringe, pipette, eye dropper, or other such like apparatus, from which the formulation may be applied to an infected area of the body, such as the lungs, or injected into an animal, or even applied to and mixed with the other components of the kit.
  • compositions of these kits also may be provided in dried or lyophilized forms.
  • reagents or components are provided as a dried form, reconstitution generally is by the addition of a suitable solvent. It is envisioned that the solvent also may be provided in another container means.
  • the kits of the invention may also include an instruction sheet defining administration of the agent and, e.g., explaining how the agent will decrease proliferation of cells.
  • the kits of the present invention also will typically include a means for containing the vials in close confinement for commercial sale such as, e.g., injection or blow-molded plastic containers into which the desired vials are retained.
  • kits of the invention also may comprise, or be packaged with a separate instrument for assisting with the injection/administration or placement of the ultimate complex composition within the body of an animal.
  • a separate instrument for assisting with the injection/administration or placement of the ultimate complex composition within the body of an animal.
  • Such an instrument may be an inhalant, syringe, pipette, forceps, measured spoon, eye dropper or any such medically approved delivery vehicle.
  • Other instrumentation includes devices that permit the reading or monitoring of reactions.
  • the resulting crude solid is purified either by silica gel column chromatography or washing with other solvents to afford the N-(3-substituted-lH-pyrazol-5-yl)-2-chloro-5- substituted-4-pyrimidinamine intermediate whose structure is confirmed by LC/MS and 1H ⁇ MR.
  • Preparative thin-layer silica gel chromatography, silica gel column chromatography, and/or preparative HPLC are used to purify final products.
  • LC/MS and 1H NMR spectroscopy are used to confirm the structures of the final 2,4-substituted pyrimidinediamines .
  • a solution of the substituted nitrobenzene (1 equiv) in ethanol (0.2 M) is added via syringe to a flask containing palladium on carbon (10 mol%).
  • the reaction vessel is fitted with a balloon adapter and charged with hydrogen and evacuated three times until the reaction is under a H 2 atmosphere.
  • the reaction is allowed to stir overnight and then purged with Ar and evacuated three times until an Ar atmosphere had been achieved.
  • the reaction solution is filtered through a pad of Celite and washed with copious amounts of ethanol. The filtrate is concentrated in vacuo to afford the desired aniline whose structure is confirmed by LC/MS and ⁇ NMR.
  • the 3-nitrophenoxyacetate intermediate (1 equiv) is hydrolyzed by stirring in 4N HCl in dioxane (3 equiv) at room temperature for 72 h.
  • the reaction mixture is concentrated and triturated with Et O to yield 3-nitrophenoxyacetic acid as a white solid, whose structure is confirmed by LC/MS and ⁇ NMR.
  • 3-nitrophenoxyacetic acid (1 equiv) is dissolved in THF (0.25 M) and 1,1- carbonyldiimidazole (1 equiv) is added.
  • the reaction mixture is stirred at rt for 3 h and then the desired amine (1.5 equiv) is added and the reaction is stirred overnight.
  • the mixture is concentrated and purified by silica flash chromatography (1/1 EtOAc/Hex) to furnish the desired N,N-substituted 3-nitrophenoxyacetamide intermediate whose structure is confirmed by LC/MS and ⁇ ⁇ MR.
  • Analytical HPLC were obtained using a Gilson HPLC equipped with a quaternary pump, a variable wavelength detector set at 254 nm, a YMC pro C-18 column (50 x 4.6 mm, 12 ⁇ m).
  • the eluents were A: acetonitrile w/0.1% TFA and B: H 2 O w/0.1% TFA.
  • Gradient elution from 10% B to 90%) over 4 min at a flowrate of 4.0 mL/min was used with an initial hold of 0.5 min and a final hold at 90% B of 0.5 minutes. Total run time was 5 min.
  • c For preparation of 5-amino-2,3-dihydrobenzofurane see Mitchell, H.; Leblanc, Y. J. Org. Chem. 1994, 59, 682-687.
  • Example 34 Preparation of[3-(f4-f(3-tert-butyl-lH-pyrazol-5-yl)aminol-5-fluoro-2- pyrimidinyl ⁇ amino)phenoxyl acetic acid.
  • Assays for testin ⁇ the activity of the compounds
  • This section describes assays that can be used to characterize compounds of the invention, e.g., src kinase activity assays; assays for testing the activity of compounds on kinases other than src; and assays for testing the activity of compounds on cell proliferation and differentiation.
  • a preferred method for measuring src kinase activity uses ATP (5 ⁇ M/well) mixed with biotinylated poly-GAT substrate (10 nM/well), Streptavidin- APC (15 nM/well) and European-labeled anti-phosphotyrosine antibody (2.5 nM/well). 10 ⁇ l of a mixture of these components is added to each well of a black 96-well plate, with or without test compound (5 ⁇ l desired concentration of compound in DMSO).
  • a specific signal is the ratio of the value of the signal at 665 and the value of the signal at 615 multiplied by 10,000 (i.e., (signal at 665/signal at 615) x 10,000).
  • Compounds that cause the specific signal to decrease inhibit the kinase activity of src. Percent inhibitions and/or IC 5 o values can then calculated based on specific signals from wells that have no compound added, i.e., zero percent inhibition.
  • a specific signal is the ratio of the value of the signal at 665 and the value of the signal at 615 multiplied by 10,000 (i.e., (signal at 665/signal at 615) x 10,000).
  • Compounds that cause the specific signal to decrease inhibit the kinase activity of src. Percent inhibitions and/or IC 5 o values can then calculated based on specific signals from wells that have no compound added, i.e., zero percent inhibition.
  • Compounds of examples 1, 3, 14-15, 18-19, 27-30 and 33 show an IC 50 less than 500 nM in the src biochemical assay.
  • Compounds of examples 2, 4, 10, 20, 23-26 and 31-32 show an IC 50 greater than 500 nM but less than 1.0 ⁇ M in the src biochemical assay.
  • the assay can also be adapted to determine the inhibitory activity of compounds towards kinases other than src kinases.
  • the src kinase enzyme in the above assay can be replaced with another kinase.
  • the antibody in the assay may also have to be replaced with an antibody that is specific for the phosphorylated residue, which has been phosphorylated by the kinase.
  • the effect of compounds on cell proliferation can be determined, e.g., by incubating cells with varying amounts of the compounds and counting the cells over time. Viable cells can be counted by staining the cells with a specific dye, e.g., Trypan Blue, according to methods well known in the art. Other methods include measuring the inco ⁇ oration of a labeled molecule into DNA or RNA or protein of cells. For example, cell proliferation is often measured by 3 H thymidine or 5-bromodeoxyuridine inco ⁇ oration assays, also well known in the art.
  • the effect of a compound on cell differentiation can be determined by visualization of the cells after having been contacted with the compound, preferably by comparison with cells which have not been contacted with the compound.
  • the differentiation of certain cells is visible by the naked eye (e.g., that of 3T3L1 cells), whereas that of other cells may require the use of a microscope.
  • Specific dyes can also be used to evaluate the state of differentiation of cells.
  • Cell differentiation can also be monitored by measuring the expression level of certain genes, whose expression is known to vary during differentiation of the cells.
  • the effect of a compound on a cell can be determined in a cell that contains an abnormal kinase, e.g., a mutated kinase gene, or a cell which over-expresses a kinase.
  • the cell can be a cell expressing a mutated form of a tyrosine kinase, e.g., src kinase, thereby transforming the cell.
  • the cell can also be a cell that has an abnormal proliferation which is not caused by an abnormal activity or level of a kinase.
  • Cells that can be used for testing compounds of the invention include cell lines and primary cell cultures.
  • a proto-oncogene which encodes, e.g., a kinase
  • ATCC American Type Culture Collection
  • Cell lines over-expressing a gene e.g., a kinase
  • Nucleic acids for use in transforming cells e.g., nucleic acids encoding kinases, are also publicly available or can readily be obtained.
  • Cell lines can also be obtained from transgenic animals, e.g., animals overexpressing a kinase or expressing a mutated kinase.
  • MG 1361 is a breast carcinoma cell line obtained from the MMTV-neu transgenic mouse (Sacco et al, Breast Cancer Res. Treat., 47:171-180 (1998)).
  • Primary cell cultures can be established from biopsies obtained from patients, e.g., patients having cancer.
  • the present invention also provides methods of testing a compound (e.g., the candidate drug) for its inhibition of src, its antiproliferative effect, its effect on cell differentiation and/or its toxicity on normal or wild-type cells in animals, e.g., transgenic animals, e.g., mice.
  • Transgenic mice are produced that express a transforming agent (e.g., a growth factor receptor) under the control of a promoter, e.g., a tissue specific promoter.
  • a promoter e.g., a tissue specific promoter.
  • Such mice develop carcinomas that have genetic and pathological features that closely resemble human cancers.
  • mice expressing viral polyoma middle T antigen under the control of the MMTV promoter produces highly metastatic mammary tumors with elevated c-src kinase activity (Guy et al. (1994) Genes and Dev. 8:23).
  • Nude mice in which rumor cell lines have been administered can also be used.
  • breast cancer cell lines over-expressing c-src can be administered to nude mice (see, e.g., Biscardi et al.
  • the ability of the compound to inhibit tumor formation or growth is then ascertained.
  • the size of the tumor is monitored by determining the tumor size and/or weight.
  • the compounds can be administered by a variety of ways including orally, subcutaneously, or intraperitoneally. Generally, at least two groups of animals are used in the assay, with at least one group being a control group which is administered the administration vehicle without the compound.

Abstract

L'invention concerne -2,4-diaminopyrimidines substitués en 5 de formule (I), dans laquelle R1 représente C¿1-6? alkyle, C3-6 cycloalkyle, l'adamantyle, le phényle ou un composé hétéroaromatique à 5 éléments comprenant un seul hétéroatome sélectionné parmi N, O, et S. R?2¿ représente H, F, Cl ou C¿1-4? alkyle. R?3¿ représente H, l'halogène, O(C¿1-4alkyle) ou C¿1-6?alkyle. R?4 représente l'halogène, NO2, C1-6 alkyle, NR?5R6¿, O(CH¿2?)1-4-CO2R?7¿, O(CH¿2?)1-4-C(O)NR?5R6, N(R5¿)C(O)CH¿2OR?8, OC(O)R9, C(O)NR5R6, CO2R7, CN ou O(C¿1-4?alkyle) facultativement substitué par OH ou le phénoxy. Cette invention concerne aussi des compositions pharmaceutiques contenant lesdits composés susmentionnés, un procédé d'élaboration associé et des méthodes d'utilisation correspondantes dans le traitement de cancers.
PCT/US2002/030980 2001-09-26 2002-09-26 Derives de 2-phenylamino-4-(5-pyrazolylamino)-pyrimidine en tant qu'inhibiteurs de la kinase, notamment, des inhibiteurs de la kinase src WO2003026665A1 (fr)

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