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  • 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
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P11/00—Drugs for disorders of the respiratory system
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P11/00—Drugs for disorders of the respiratory system
  • A61P11/06—Antiasthmatics
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P37/00—Drugs for immunological or allergic disorders
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P37/00—Drugs for immunological or allergic disorders
  • A61P37/02—Immunomodulators
  • A61P37/04—Immunostimulants
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P37/00—Drugs for immunological or allergic disorders
  • A61P37/02—Immunomodulators
  • A61P37/06—Immunosuppressants, e.g. drugs for graft rejection
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P37/00—Drugs for immunological or allergic disorders
  • A61P37/08—Antiallergic agents
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
• • 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
  • C07D417/02—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 two hetero rings
  • C07D417/04—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 two hetero rings directly linked by a ring-member-to-ring-member bond

Definitions

• the present invention relates to compounds useful as inhibitors of protein kinases.
• the invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders.
• Protein kinases constitute a large family of structurally related enzymes that are responsible for the control of a variety of signal transduction processes within the cell. (See, Hardie, G. and Hanks, S. The Protein Kinase Facts Book, I and II, Academic Press, San Diego, CA: 1995). Protein kinases are thought to have evolved from a common ancestral gene due to the conservation of their structure and catalytic function. Almost all kinases contain a similar 250-300 amino acid catalytic domain. The kinases may be categorized into families by the substrates they phosphorylate (e.g., protein-tyrosine, protein-serine/threonine, lipids, etc.).
• phosphorylate e.g., protein-tyrosine, protein-serine/threonine, lipids, etc.
• phosphorylation events act as molecular on/off switches that can modulate or regulate the target protein biological function. These phosphorylation events are ultimately triggered in response to a variety of extracellular and other stimuli. Examples of such stimuli include environmental and chemical stress signals (e.g., osmotic shock, heat shock, ultraviolet radiation, bacterial endotoxin, and H 2 0 2 ), cytokines (e.g., interleukin-1 (IL- 1) and tumor necrosis factor (TNF- )), and growth factors (e.g., granulocyte macrophage- colony-stimulating factor (GM-CSF), and fibroblast growth factor (FGF)).
• environmental and chemical stress signals e.g., osmotic shock, heat shock, ultraviolet radiation, bacterial endotoxin, and H 2 0 2
• cytokines e.g., interleukin-1 (IL- 1) and tumor necrosis factor (TNF- )
• growth factors e.g., gran
• An extracellular stimulus may affect one or more cellular responses related to cell growth, migration, differentiation, secretion of hormones, activation of transcription factors, muscle contraction, glucose metabolism, control of protein synthesis, and regulation of the cell cycle.
• diseases include, but are not limited to, autoimmune diseases, inflammatory diseases, bone diseases, metabolic diseases, neurological and neurodegenerative diseases, cancer, cardiovascular diseases, allergies and asthma, Alzheimer's disease, and hormone-related diseases. Accordingly, there has been a substantial effort in medicinal chemistry to find protein kinase inhibitors that are effective as therapeutic agents.
• Syk is a tyrosine kinase that plays a critical role in Fc ⁇ RI mediated mast cell degranulation and eosinophil activation. Accordingly, Syk kinase is implicated in various allergic disorders, in particular asthma. It has been shown that Syk binds to the phosphorylated gamma chain of the Fc ⁇ RI receptor via N-terminal SH2 domains and is essential for downstream signaling [Taylor et al, Mol. Cell. Biol. 1995, 15, 4149]. [0008] Inhibition of eosinophil apoptosis has been proposed as a key mechanism for the development of blood and tissue eosinophilia in asthma.
• E -5 and GM-CSF are upregulated in asthma and are proposed to cause blood and tissue eosinophilia by inhibition of eosinophil apoptosis.
• Inhibition of eosinophil apoptosis has been proposed as a key mechanism for the development of blood and tissue eosinophilia in asthma. It has been reported that Syk kinase is required for the prevention of eosinophil apoptosis by cytokines (using antisense) [Yousefi et al, J. Exp. Med. 1996, 183, 1407].
• ZAP-70 is essential for T-cell receptor signalling. Expression of this tyrosine kinase is restricted to T-cells and natural killer cells. The importance of ZAP-70 in T-cell function has been demonstrated in human patients, human T-cell lines and mice. Human patients suffering from a rare form of severe combined deficiency syndrome (SCED) possess homozygous mutations in ZAP-70 (reviewed in Elder J. of Pedriatric Hematology/Oncology 1997, 19(6), 546-550). These patients have profound immunodeficiency, lack CD8+ T-cells and have CD4+ T-cells that are unresponsive to T-cell receptor (TCR)-mediated stimulation.
• SCED severe combined deficiency syndrome
• ZAP-70-deficient mice have profound defects in T-cell development and T-cell receptor signalling in thymocytes is impaired (Negishi et al., Nature 1995 376, 435-438).
• the importance of the kinase domain in ZAP-70 function is demonstrated by studies of human patients and mice expressing identical mutations in the DLAARN motif within the kinase domain of ZAP-70. Inactivation of kinase activity by this mutation results in defective T-cell receptor signalling (Elder et al, J. Immunology 2001, 656-661).
• Catalytically inactive ZAP-70 (Lys369Arg) was also defective in restoring T-cell receptor signalling in a ZAP-70 deficient Jurkat cell clone (pi 16) (Williams et al., Molecular and Cellular Biology 1998, 28 (3), 1388-1399).
• R 1 , R 2 , R 3 , R 4 , and Ar 1 are as defined below.
• These compounds and pharmaceutically acceptable compositions thereof are useful for treating or preventing a variety of diseases, disorders or conditions, including, but not limited to, immunodeficiency disorders, inflammatory diseases, allergic diseases, autoimmune diseases, proliferative disorders, immunologically-mediated diseases, or respiratory disorders, to name a few.
• the compounds provided by this invention are also useful for the study of kinases in biological and pathological phenomena; the study of intracellular signal transduction pathways mediated by such kinases; and the comparative evaluation of new kinase inhibitors.
• R 1 and R 2 are each independently R, halogen, CN, N0 2 , or TR, or R 1 and R 2 taken together form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5- or 6-membered ring having 0-3 heteroatoms independently selected from N, O, or S;
• T is an optionally substituted C 1 -C 4 . alkylidene chain wherein up to two methylene units of T are optionally and independently replaced by O, N(R), C(O), S, SO, or S0 2 ;
• Ar 1 is an optionally substituted ring selected from: an aryl group selected from a 5-6 membered monocyclic or an 8-10 membered bicyclic ring having 0-5 heteroatoms independently selected from nitrogen, oxygen, or sulfur; a 3-8-membered saturated or partially unsaturated monocyclic ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur; or an 8-10-membered saturated or partially unsaturated bicyclic ring system having 0-5 heteroatoms independently selected from nitrogen, oxygen, or sulfur; wherein Ar 1 is optionally substituted at one or more carbon atoms with 0-5 occurrences of -Q-R 5 , and at one or more substitutable nitrogen atoms with -R 6 and each occurrence of R 6 is independently R', -COR', -C0 2 (C 1-6 aliphatic), -CON(R ) , - S0 2 N(R') 2 , or -S0 2 R ;
• R 3 and R 4 are each independently Z-R 7 , or R 3 and R 4 are taken together to form an optionally substituted saturated or partially unsaturated, or fully unsaturated 3-8 membered ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur wherein said ring is optionally substituted with 0-5 independent occurrences of Y-R ; each occurrence of Q, Z, and Y is independently a bond or an optionally substituted -C 6 alkylidene chain wherein up to two non-adjacent methylene units of Q are optionally replaced by CO, C0 2 , COCO, CONR, OCONR, NRNR, NRNRCO, NRCO, NRC0 2 , NRCONR, SO, S0 2 , NRS0 2 , S0 2 NR, NRS0 2 NR, O, S, or NR; each occurrence of R 5 , R 7 and R 8 is independently R', halogen, N0 2 , CN, OR', SR
• compounds of the invention may optionally be substituted with one or more substituents, such as are illustrated generally above, or as exemplified by particular classes, subclasses, and species of the invention. It will be appreciated that the phrase “optionally substituted” is used interchangeably with the phrase “substituted or unsubstituted.” In general, the term “substituted”, whether preceded by the term “optionally” or not, refers to the replacement of hydrogen radicals in a given structure with the radical of a specified substituent.
• an optionally substituted group may have a substituent at each substitutable position of the group, and when more than one position in any given structure may be substituted with more than one substituent selected from a specified group, the substituent may be either the same or different at every position.
• Combinations of substituents envisioned by this invention are preferably those that result in the formation of stable or chemically feasible compounds.
• stable refers to compounds that are not substantially altered when subjected to conditions to allow for their production, detection, and preferably their recovery, purification, and use for one or more of the purposes disclosed herein.
• a stable compound or chemically feasible compound is one that is not substantially altered when kept at a temperature of 40°C or less, in the absence of moisture or other chemically reactive conditions, for at least a week.
• aliphatic or "aliphatic group”, as used herein, means a straight-chain (i.e., unbranched) or branched, substituted or unsubstituted hydrocarbon chain that is completely saturated or that contains one or more units of unsaturation, or a monocyclic hydrocarbon or bicyclic hydrocarbon that is completely saturated or that contains one or more units of unsaturation, but which is not aromatic (also referred to herein as “carbocycle” "cycloaliphatic” or “cycloalkyl”), that has a single point of attachment to the rest of the molecule.
• aliphatic groups contain 1-20 aliphatic carbon atoms.
• aliphatic groups contain 1-10 aliphatic carbon atoms. In other embodiments, aliphatic groups contain 1-8 aliphatic carbon atoms. In still other embodiments, aliphatic groups contain 1-6 aliphatic carbon atoms, and in yet other embodiments aliphatic groups contain 1-4 aliphatic carbon atoms.
• cycloaliphatic refers to a monocyclic C 3 -C 8 hydrocarbon or bicyclic C 8 -C 12 hydrocarbon that is completely saturated or that contains one or more units of unsaturation, but which is not aromatic, that has a single point of attachment to the rest of the molecule wherein any individual ring in said bicyclic ring system has 3-7 members.
• Suitable aliphatic groups include, but are not limited to, linear or branched, substituted or unsubstituted alkyl, alkenyl, alkynyl groups and hybrids thereof such as (cycloalkyl)alkyl, (cycloalkenyl)alkyl or (cycloalkyl)alkenyl.
• heteroaliphatic means aliphatic groups wherein one or two carbon atoms are independently replaced by one or more of oxygen, sulfur, nitrogen, phosphorus, or silicon. Heteroaliphatic groups may be substituted or unsubstituted, branched or unbranched, cyclic or acyclic, and include "heterocycle”, “heterocyclyl”, “heterocycloahphatic”, or “heterocyclic” groups.
• heterocycle means non-aromatic, monocyclic, bicyclic, or tricyclic ring systems in which one or more ring members is an independently selected heteroatom.
• the "heterocycle”, “heterocyclyl”, “heterocycloahphatic”, or “heterocyclic” group has three to fourteen ring members in which one or more ring members is a heteroatom independently selected from oxygen, sulfur, nitrogen, or phosphorus, and each ring in the system contains 3 to 7 ring members.
• heteroatom means one or more of oxygen, sulfur, nitrogen, phosphorus, or silicon (including, any oxidized form of nitrogen, sulfur, phosphorus, or silicon; the quaternized form of any basic nitrogen or; a substitutable nitrogen of a heterocyclic ring, for example N (as in 3,4-dihydro-2H-pyrrolyl), N ⁇ (as in pyrrolidinyl) or NR + (as in N-substituted pyrrolidinyl)).
• alkoxy refers to an alkyl group, as previously defined, attached to the principal carbon chain through an oxygen (“alkoxy”) or sulfur (“thioalkyl”) atom.
• haloalkyl means alkyl, alkenyl or alkoxy, as the case may be, substituted with one or more halogen atoms.
• halogen means F, Cl, Br, or I.
• aryl used alone or as part of a larger moiety as in “aralkyl”, “aralkoxy”, or “aryloxyalkyl”, refers to monocyclic, bicyclic, and tricyclic ring systems having a total of five to fourteen ring members, wherein at least one ring in the system is aromatic and wherein each ring in the system contains 3 to 7 ring members.
• aryl may be used interchangeably with the term “aryl ring”.
• aryl also refers to heteroaryl ring systems as defined hereinbelow.
• heteroaryl used alone or as part of a larger moiety as in “heteroaralkyl” or “heteroarylalkoxy”, refers to monocyclic, bicyclic, and tricyclic ring systems having a total of five to fourteen ring members, wherein at least one ring in the system is aromatic, at least one ring in the system contains one or more heteroatoms, and wherein each ring in the system contains 3 to 7 ring members.
• heteroaryl may be used interchangeably with the term “heteroaryl ring” or the term “heteroaromatic”.
• An aryl (including aralkyl, aralkoxy, aryloxyalkyl and the like) or heteroaryl (including heteroaralkyl and heteroarylalkoxy and the like) group may contain one or more substituents.
• Optional substituents on the aliphatic group of R° are selected from NH , NH(C 1- aliphatic), N(C 1- aliphatic) 2 , halogen, C 1-4 aliphatic, OH, 0(C 1-4 aliphatic), N0 2 , CN, C0 2 H, C0 2 (C 1-4 aliphatic), 0(haloC 1-4 aliphatic), or haloC 1-4 aliphatic, wherein each of the foregoing C 1-4 aliphatic groups of R° is unsubstituted.
• Optional substituents on the aliphatic group of R * are selected from NH 2 , NH(C 1-4 aliphatic), N(C ⁇ -4 aliphatic) 2 , halogen, C 1- aliphatic, OH, 0(C 1- aliphatic), N0 2 , CN, C0 2 H, C0 2 (C 1-4 aliphatic), 0(halo C 1- aliphatic), or halo(C 1-4 aliphatic), wherein each of the foregoing C 1-4 aliphatic groups of R * is unsubstituted.
• Optional substituents on the aliphatic group or the phenyl ring of R + are selected from NH 2 , NH(C 1-4 aliphatic), N(C 1-4 aliphatic) 2 , halogen, C 1-4 aliphatic, OH, 0(C 1- aliphatic), N0 2 , CN, C0 2 H, C0 2 (C 1-4 aliphatic), 0(halo C 1-4 aliphatic), or halo(C 1-4 aliphatic), wherein each of the foregoing C ⁇ _ 4 aliphatic groups of R + is unsubstituted.
• alkylidene chain refers to a straight or branched carbon chain that may be fully saturated or have one or more units of unsaturation and has two points of attachment to the rest of the molecule.
• two independent occurrences of R° are taken together together with the atom(s) to which each variable is bound to form a 3-8-membered cycloalkyl, heterocyclyl, aryl, or heteroaryl ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur.
• Exemplary rings that are formed when two independent occurrences of R° (or R + , or any other variable similarly defined herein) are taken together with the atom(s) to which each variable is bound include, but are not limited to the following: a) two independent occurrences of R° (or R + , or any other variable similarly defined herein) that are bound to the same atom and are taken together with that atom to form a ring, for example, N(R°) 2 , where both occurrences of R° are taken together with the nitrogen atom to form a piperidin-1-yl, piperazin-1-yl, or morpholin-4-yl group; and b) two independent occurrences of R° (or R + , or any other variable similarly defined herein) that are bound to different atoms and are taken together with both of those atoms to form a ring, for example where a phenyl group is
• oxygen containing ring It will be appreciated that a variety of other rings can be formed when two independent occurrences of R° (or R + , or any other variable similarly defined herein) are taken together with the atom(s) to which each variable is bound and that the examples detailed above are not intended to be limiting.
• structures depicted herein are also meant to include all isomeric (e.g., enantiomeric, diastereomeric, and geometric (or conformational)) forms of the structure; for example, the R and S configurations for each asymmetric center, (Z) and (E) double bond isomers, and (Z) and (E) conformational isomers. Therefore, single stereochemical isomers as well as enantiomeric, diastereomeric, and geometric (or conformational) mixtures of the present compounds are within the scope of the invention. Unless otherwise stated, all tautomeric forms of the compounds of the invention are within the scope of the invention.
• structures depicted herein are also meant to include compounds that differ only in the presence of one or more isotopically enriched atoms.
• compounds having the present structures except for the replacement of hydrogen by deuterium or tritium, or the replacement of a carbon by a 13 C- or 14 C-enriched carbon are within the scope of this invention.
• Such compounds are useful, for example, as analytical tools or probes in biological assays.
• Ar 1 is an optionally substituted ring selected from: an aryl group selected from a 5-6 membered monocyclic or an 8-10 membered bicyclic ring having 0-5 heteroatoms independently selected from nitrogen, oxygen, or sulfur; a 3-8-membered saturated or partially unsaturated monocyclic ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur; or an 8-10-membered saturated or partially unsaturated bicyclic ring system having 0- 5 heteroatoms independently selected from nitrogen, oxygen, or sulfur, wherein Ar 1 is optionally substituted at one or more carbon atoms with 0-5 occurrences of -Z-R 5 , and at one or more substitutable nitrogen atoms with -R 6 .
• Preferred Ar 1 groups of formula I are optionally substituted rings selected from:
• Ar 1 groups of formula I are optionally substituted rings selected from:
• Ar 1 groups of formula I are optionally substituted rings selected from any one of a-bb:
• Ar 1 rings are phenyl, pyrimidinyl, or pyridyl.
• Ar 1 is not 3, 4, 5-trimethoxyphenyl.
• Ar is optionally substituted with up to 5 independent occurrences of Q-R 5 , wherein each occurrence of Q is independently a bond or is an optionally substituted C ⁇ .-C 6 alkylidene chain wherein up to two non-adjacent methylene units of Q are optionally replaced by CO, C0 2 , COCO, CONR, OCONR, NRNR, NRNRCO, NRCO, NRC0 2 , NRCONR, SO, S0 2 , NRS0 2 , S0 2 NR, NRS0 2 NR, O, S, or NR; and each occurrence of R 5 is independently R', halogen, N0 2 , CN, OR', SR', N(R') 2 , NR'C(0)R', NR'C(0)N(R') 2 , NR'C0 2 R', C(0)R', C0 2 R ⁇ OC(0)R', C(0)N(R')
• Q is independently a bond or is an optionally substituted C 1 -C 4 alkylidene chain wherein up to two non-adjacent methylene units of Q are optionally replaced by CO, C0 2 , CONR, OCONR, NRCO, NRC0 2 , NRS0 2 , S0 2 NR, O, S, or NR; and each occurrence of R 5 is independently selected from R', halogen, N0 2 , CN, OR', SR', N(R') 2 , NR'C(0)R', NR'C(0)N(R') 2 , NR'C0 2 R', C(0)R', C0 2 R ⁇ OC(0)R', C(0)N(R') 2 , OC(0)N(R') 2 , SOR', S0 2 R', S0 2 N(R') 2 , NR'S0 2 R', NR'S0 2 N(R') 2 ,
• Preferred Q-R 5 substituents on Ar 1 are CH 2 halogen, halogen, CH 2 CN, CN, CH 2 C0 2 R', C0 2 R ⁇ CH 2 COR ⁇ COR', R', CH 2 N0 2 , N0 2 , CH 2 OR', OR', CH 2 SR', SR', haloalkyl, CH 2 S0 2 N(R') 2 , S0 2 N(R') 2 , CH 2 N(R') 25 N(R') 2 , NHCOR', CH 2 NHCOR', CH 2 PO(OR') 2 , PO(OR') 2 , or two adjacent occurrences of Q-R 5 , taken together with the atoms to which they are bound, form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5-8-membered ring having 0-3 heteroatoms selected from nitrogen, oxygen, or sulfur.
• More preferred Q-R 5 substituents on Ar 1 are fluoro, iodo, chloro, bromo, COCH 3 , CO 2 CH 3 , C 1-4 alkyl (for example, methyl, ethyl, propyl, cyclopropyl, n-butyl, cyclobuyl, or t- butyl), NH 2 , CH 2 NH 2 , NHMe, CH 2 NHMe, N(Me) 2 , CH 2 N(Me) 2 , N(Et) 2 , CH 2 N(Et) 2 , NH(phenyl), CO(C 1-4 alkyl), CH 2 CO(C 1-4 alkyl), NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CN, CH 2 CN, OH, C 1-4 alkoxy (for example, OCH 3 , OCH 2 CH 3 , 0(CH 2 )
• Ar 1 substituents are those substituents where two adjacent occurrences of Q-R 5 , taken together with the atoms to which they are bound, and include a fused optionally substituted saturated, partially unsaturated, or fully unsaturated 5- or 6-membered ring having 0-3 heteroatoms selected from nitrogen, oxygen, or sulfur.
• these fused substituents formed by two adjacent occurrences of Q-R 5 include an optionally substituted group selected from methylenedioxy, ethylenedioxy, propylenedioxy, thiazolyl, oxazolyl, pyrrolyl, pyrazolyl, imidazolyl, phenyl, pyridyl, pyrimidinyl, furyl, thiophene, pyran, pyrrolidinyl, piperidinyl, piperazinyl, or morpholinyl.
• each occurrence of QR 5 is independently CH 2 halogen, halogen, CH 2 CN, CN, CH 2 C0 2 R', C0 2 R', CH 2 COR', COR', R', CH 2 N0 2 , N0 2 , CH 2 OR ⁇ OR', CH 2 SR', SR', haloalkyl, CH 2 S0 2 N(R') 2 , S0 2 N(R') 2 , CH 2 N(R') 2 , N(R') 2 , NHCOR', CH 2 NHCOR', CH 2 PO(OR') 2 , PO(OR') , PO(OR') .
• each occurrence of QR is independently fluoro, iodo, chloro, bromo, COCH 3 , C0 2 CH 3 , C 1-4 alkyl (for example, methyl, ethyl, propyl, cyclopropyl, n-butyl, cyclobuyl, or t-butyl), NH 2 , CH 2 NH 2 , NHMe, CH 2 NHMe, N(Me) 2 , CH 2 N(Me) 2 , N(Et) 2 , CH 2 N(Et) 2 , NH(phenyl), CO(C 1-4 alkyl), CH 2 CO(C 1-4 alkyl), NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CN, CH 2 CN, OH, C 1-4 alkoxy (for example, OCH 3 , OCH 2 CH 3 , 0(CH 2 ) 2 CH 3 ,
• each occurrence of QR 5 is independently CH 2 halogen, halogen, CH 2 CN, CN, CH 2 C0 2 R', C0 2 R', CH 2 COR', COR', R ⁇ CH 2 N0 2 , N0 2 , CH 2 OR', OR', CH 2 SR', SR', haloalkyl, CH 2 S0 2 N(R') 2 , S0 2 N(R') 2 , CH 2 N(R') 2 , N(R') 2 , NHCOR', CH 2 NHCOR', CH 2 PO(OR') 2 , PO(OR') 2 .
• each occurrence of QR 5 is independently fluoro, iodo, chloro, bromo, COCH 3 , C0 2 CH , C 1-4 alkyl (for example, methyl, ethyl, propyl, cyclopropyl, n-butyl, cyclobuyl, or t-butyl), NH 2 , CH 2 NH 2 , NHMe, CH 2 NHMe, N(Me) 2 , CH 2 N(Me) 2 , N(Et) 2 , CH 2 N(Et) 2 , NH(phenyl), CO(C 1-4 alkyl), CH 2 CO(C 1-4 alkyl), NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CN, CH 2 CN, OH, C 1-4 alkoxy (for example, OCH 3 , OCH 2 CH 3 , 0(CH 2 ) 2 CH 3 ,
• each occurrence of QR 5 is independently fluoro, iodo, chloro, bromo, COCH 3 , C0 2 CH 3 , C 1-4 alkyl (for example, methyl, ethyl, propyl, cyclopropyl, n-butyl, cyclobuyl, or t- butyl), NH 2 , CH 2 NH 2 , NHMe, CH 2 NHMe, N(Me) 2 , CH 2 N(Me) 2 , N(Et) 2 , CH 2 N(Et) 2 , NH(phenyl), CO(C 1-4 alkyl), CH 2 CO(C 1-4 alkyl), NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CN, CH CN, OH, optionally substituted benzyloxy, optionally substituted phenyloxy, CF 3 , S0 2 NH 2 , S
• Each of the Q-R 5 substituents described above are also optionally further substituted with one or more groups independently selected from R, OR, N(R) 2 , S0 2 R, halogen, N0 2? CN, SR, S0 2 N(R) , C0 R, C(0)R, or oxo.
• each of the Q-R 5 groups described above are also optionally further substituted with one or two groups independently selected from methyl, ethyl, t-butyl, fluoro, chloro, bromo, oxo, CF 3 , OMe, OEt, CN, S0 2 Me, S0 2 NH 2 , NH 2 , NHMe, N(Me) 2 , SMe, SEt, OH, C(0)Me, N0 2 , or CH 2 OH.
• R and R are each independently R, halogen, CN, N0 2 , or TR, or R 1 and R 2 taken together form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5- or 6-membered ring having 0-3 heteroatoms independently selected from N, O, or S.
• Preferred R and R groups of formula I are hydrogen, N(R) 2 , SR, OR, or TR, or R 1 and R 2 , taken together form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5-membered ring having 0-2 heteroatoms independently selected from N, O, or S.
• R 1 and R 2 groups are hydrogen, OH, CH 3 , CH 2 CH 3 , OCH 3 , CH 2 OH, CH 2 OCH 3 , CH 2 NH 2 , CH 2 NHCH 3 , NH 2 , or CH 2 NH 2 , or R 1 and R 2 , taken together, form a fused optionally substituted pyrrolyl, pyrazolyl, or imidazolyl ring.
• Still other preferred groups include hydrogen, NH 2 , or CH 2 NH 2 .
• R 3 and R 4 are each independently Z-R 7 , wherein Z is an optionally substituted C 1-6 alkylidene chain wherein up to three non-adjacent methylene units are optionally replaced by CO, C0 2 , COCO, CONR, OCONR, NRNR, NRNRCO, NRCO, NRC0 2 , NRCONR, SO, S0 2 , NRS0 2 , S0 2 NR, NRS0 2 NR, O, S, or NR, and each occurrence of R 7 is independently R', halogen, N0 2 , CN, OR', SR', N(R') 2 , NR'C(0)R ⁇ NR'C(0)N(R') 2 , NR'C0 2 R', C(0)R', C0 2 R', OC(0)R', C(0)N(R') 2 , OC(0)N(R') 2 , SOR', S0 2 R
• R 3 and R 4 are each independently Z-R 7 wherein Z is an optionally substituted Co- 4 alkylidene chain wherein one methylene unit of Z is optionally replaced by O, NR, NRCO, NRC0 2 , NRS0 2 , CONR, C(O), C(0)0, and wherein R 7 is selected from halogen, CN, N(R') 2 , NHCOR', or R', or wherein R 3 and R 4 , taken together form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5- or 6- membered ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur.
• R 3 and R 4 are each independently hydrogen, CN, halogen, OH, SH, NH 2 , C0 2 H, COH, CONH 2 , S0 2 NH 2 , N0 2 , (CH 2 ) n NRR 7 , wherein R and R 7 , taken together with the nitrogen atom to which they are bound fo ⁇ n an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, or R 3 and R 4 , taken together with the atoms to which they are bound, form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5- or 6-membered ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur, and n is 0, 1, 2, 3, 4, or 5.
• one of R 3 or R 4 is hydrogen, and the other of R 3 or R 4 is (CH 2 ) n halogen, (CH 2 ) n CN, (CH 2 ) n OR 7 , (CH 2 ) n NRR 7 , (CH 2 ) n C(0)R 7 , (CH 2 ) n C(0)R 7 (CH 2 ) n CH 3 , (CH 2 ) n C(0)NRR 7 , (CH 2 ) n SR 7 , wherein R 7 is hydrogen, (CH 2 ) m N(R') 2 , Ci-C 4 alkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R 7 , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur.
• R 3 is hydrogen. In other embodiments, for compounds described directly above, R 4 is hydrogen. [0054] In yet other preferred embodiments, R 3 or R 4 are each independently hydrogen, (CH 2 ) n OR 7 , (CH 2 ) n NRR 7 , (CH 2 ) n CH 3 , (CH 2 ) n SR 7 , (CH 2 ) n C(0)R 7 , or (CH 2 ) n C(0)R 7 , wherein R 7 is (CH 2 ) m N(R') 2 , Ci- alkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R 7 , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, wherein n is 0 or 1 and m is 0 or
• R 3 is hydrogen
• R 4 is (CH 2 ) n OR 7 , (CH 2 ) n NRR 7 , (CH 2 ) n CH 3 , (CH 2 ) n SR 7 , (CH 2 ) n C(0)R 7 , or (CH 2 ) n C(0)R 7 , wherein R 7 is (CH 2 ) m N(R') 2 , Q- C 4 alkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, n is 0 or 1 and m is 0 or 1.
• R 4 is hydrogen and R 3 is (CH 2 ) n OR 7 , (CH 2 ) n NRR 7 , (CH 2 ) n CH 3 , (CH 2 ) n SR 7 , (CH 2 ) n C(0)R 7 , or (CH 2 ) n C(0)R 7 , R 7 is (CH 2 ) m N(R') 2 , Cj-C 4 alkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R 7 , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, wherein n is 0 or 1 and m is 0 or 1.
• R 3 and R 4 taken together with the atoms to which they are bound, form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5- or 6-membered ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur, and wherein said ring is optionally substituted with 0, 1, 2, 3, 4, or 5 occu ⁇ ences of Y-R 8 .
• each occurrence of Y-R 8 is independently methyl, ethyl, t-butyl, fluoro, chloro, bromo, oxo, CF 3 , OMe, OEt, CN, S0 2 Me, S0 2 NH 2 , NH 2 , NHMe, N(Me) 2 , SMe, SEt, OH, C(0)Me, N0 2 , or CH 2 OH.
• the present invention additionally provides compounds wherein at least one of R or R 4 is methyl and compounds have one of formulas I-A-i or I-A-ii:
• At least one of R 3 or R 4 is (CH 2 ) n NRR 7 and compounds have one of formulas I-B-i or I-B-ii:
• R 3 or R 4 is (CH 2 ) n OR 7 and compounds have one of formulas I-C-i or I-C-ii:
• both R 3 and R 4 are methyl and compounds hhaavvee ffoorrmmuullaa II--DD--ii,, oorr RR 33 aanndd RR 44 ,, tt ⁇ aken together, form an optionally substituted phenyl ring and compounds have formula I-E-i:
• Ar 1 is an optionally substituted ring selected from: an aryl group selected from a 5-6 membered monocyclic or an 8-10 membered bicyclic ring having 0-5 heteroatoms independently selected from nitrogen, oxygen, or sulfur; a 3-8-membered saturated or partially unsaturated monocyclic ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur; or an 8-10-membered saturated or partially unsaturated bicyclic ring system having 0-5 heteroatoms independently selected from nitrogen, oxygen, or sulfur, wherein Ar 1 is optionally substituted at one or more carbon atoms with 0-5 occurrences of - Z-R 5 , and at one or more substitutable nitrogen atoms with -R 6 .
• Preferred Ar 1 groups for compounds of formulas I-A-i, I-A-ii, I-B-i, I-B-ii, I-C-i, I-C-ii, I-D-i, and I-E-i are optionally substituted rings selected from:
• Ar 1 groups for compounds of formulas I-A-i, I-A-ii, I-B-i, I-B-ii, I-C-i, I-C-ii, I-D-i, and I-E-i are optionally substituted rings selected from:
• prefe ⁇ ed Ar 1 groups for compounds of formulas I-A-i, I-A-ii, I-B-i, I-B-ii, I-C-i, I-C-ii, I-D-i, and I-E-i are optionally substituted rings selected from any one of a-bb:
• C-ii, I-D-i, and I-E-i are phenyl, pyrimidinyl, or pyridyl.
• Ar 1 is not 3, 4, 5-trimethoxyphenyl.
• Ar 1 is optionally substituted phenyl and compounds have one of formulas II-A-i, II-A-ii, II-B-i, II-B-ii, II-C-i, Il-C-ii, II-D-i, and II-E-i:
• Ar 1 is optionally substituted with up to 5 independent occu ⁇ ences of Q-R 5 , wherein each occu ⁇ ence of Q is independently a bond or is an optionally substituted Ci-C ⁇ alkylidene chain wherein up to two non-adjacent methylene units of Q are optionally replaced by CO, C0 2 , COCO, CONR, OCONR, NRNR, NRNRCO, NRCO, NRC0 2 , NRCONR, SO, S0 2 , NRS0 2 , S0 2 NR, NRS0 2 NR, O, S, or NR; and each occu ⁇ ence of R 5 is independently selected from R ⁇ halogen, N0 , CN, OR', SR', N(R') 2 , NR'C(0)R', NR'C(0)N(R') 2 , NR'C0 2 R ⁇ C(0)R', C0 2 R', OC(0)R', C(0)N(
• Q is independently a bond or is an optionally substituted C1.-C 4 alkylidene chain wherein up to two non-adjacent methylene units of Q are optionally replaced by CO, C0 2 , CONR, OCONR, NRCO, NRC0 2 , NRS0 2 , S0 2 NR, O, S, of NR; and each occu ⁇ ence of R 5 is independently selected from R', halogen, N0 2 , CN, OR', SR', N(R') 2 , NR'
• Ar 1 substituents are those substituents where two adjacent occurrences of Q-R 5 , taken together with the atoms to which they are bound, and include a fused optionally substituted saturated, partially unsaturated, or fully unsaturated 5- or 6-membered ring having 0-3 heteroatoms selected from nitrogen, oxygen, or sulfur.
• these fused substituents formed by two adjacent occu ⁇ ences of Q-R 5 include an optionally substituted group selected from methylenedioxy, ethylenedioxy, propylenedioxy, thiazolyl, oxazolyl, py ⁇ olyl, pyrazolyl, imidazolyl, phenyl, pyridyl, pyrimidinyl, furyl, thiophene, pyran, py ⁇ olidinyl, piperidinyl, piperazinyl, or morpholinyl.
• each occu ⁇ ence of QR 5 is independently CH 2 halogen, halogen, CH 2 CN, CN, CH 2 C0 2 R', C0 2 R', CH 2 COR', COR', R', CH 2 N0 2 , N0 2 , CH 2 OR ⁇ OR', CH 2 SR', SR', haloalkyl, CH 2 S0 2 N(R') 2 , S0 2 N(R') 2 , CH 2 N(R') 2 , N(R') 2 , NHCOR', CH 2 NHCOR', CH 2 PO(OR') 2 , PO(OR') 2 .
• each occu ⁇ ence of QR 5 is independently fluoro, iodo, chloro, bromo, COCH 3 , C0 2 CH 3 , C 1- alkyl (for example, methyl, ethyl, propyl, cyclopropyl, n-butyl, cyclobuyl, or t-butyl), NH 2 , CH 2 NH 2 , NHMe, CH 2 NHMe, N(Me) 2 , CH 2 N(Me) 2 , N(Et) 2 , CH 2 N(Et) 2 , NH(phenyl), CO(C 1-4 alkyl), CH 2 CO(C 1-4 alkyl), NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CN, CH 2 CN, OH, C 1-4 alkoxy (for example, OCH 3 , OCH 2 CH 3 , 0(CH 2 ) 2 CH
• Ar 1 is phenyl and is substituted with three occu ⁇ ences
• each occurrence of QR 5 is independently CH 2 halogen, halogen, CH CN, CN, CH 2 C0 2 R', C0 2 R', CH 2 COR ⁇ COR', R', CH 2 N0 2 , N0 2 , CH 2 OR', OR', CH 2 SR', SR', haloalkyl, CH 2 S0 2 N(R') 2 , S0 2 N(R') 2 , CH 2 N(R') 2 , N(R') 2 , NHCOR', CH 2 NHCOR', CH 2 PO(OR') 2 , PO(OR') 2 .
• each occu ⁇ ence of QR 5 is independently fluoro, iodo, chloro, bromo, COCH 3 , C0 2 CH 3 , C 1- alkyl (for example, methyl, ethyl, propyl, cyclopropyl, n-butyl, cyclobuyl, or t-butyl), NH 2 , CH 2 NH 2 , NHMe, CH 2 NHMe, N(Me) 2 , CH 2 N(Me) 2 , N(Et) 2 , CH 2 N(Et) 2 , NH(phenyl), CO(C 1-4 alkyl), CH 2 CO(C 1-4 alkyl), NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CN, CH 2 CN, OH, C 1-4 alkoxy (for example, OCH 3 , OCH 2 CH 3 , 0(CH 2 ) 2 CH
• each occu ⁇ ence of QR 5 is independently fluoro, iodo, chloro, bromo, COCH 3 , C0 2 CH 3 , C 1-4 alkyl (for example, methyl, ethyl, propyl, cyclopropyl, n-butyl, cyclobuyl, or t- butyl), NH 2 , CH 2 NH 2 , NHMe, CH 2 NHMe, N(Me) 2 , CH 2 N(Me) 2 , N(Et) 2 , CH 2 N(Et) 2 , NH ⁇ henyl), CO(C 1-4 alkyl), CH 2 CO(C 1-4 alkyl), NHCO(C 1-4 alkyl), CH 2 NHCO(C 1-4 alkyl), CN, CH 2 CN, OH, optionally substituted benzyloxy, optionally substituted phenyloxy, CF 3 , S0 2 NH 2 NH 2 ,
• Each of the Q-R 5 substituents described above are also optionally further substituted with one or more groups independently selected from R, OR, N(R) 2 , S0 2 R, halogen, N0 2 , CN, SR, S0 2 N(R) 2 , C0 2 R, C(0)R, or oxo.
• each of the Q-R 5 groups described above are also optionally further substituted with one or two groups independently selected from methyl, ethyl, t-butyl, fluoro, chloro, bromo, oxo, CF 3 , OMe, OEt, CN, SO z Me, S0 2 NH 2 , NH 2 , NHMe, N(Me) 2 , SMe, SEt, OH, C(0)Me, N0 2 , or CH 2 OH.
• R 1 and R 2 groups for compounds of formulas I-A-i, I-A-ii, I-B-i, I-B-ii, I-C-i, I-C-ii, I-D-i, I-E-i, II-A-i, ⁇ -A-ii, II-B-i, ⁇ -B-ii, II-C-i s ⁇ l-C-ii, II-D-i, and II-E-i are selected from hydrogen, N(R) 2 , SR, OR, or TR, or R 1 and R 2 , taken together form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5-membered ring having 0-2 heteroatoms independently selected from N, O, or S.
• R 1 and R 2 groups are hydrogen, OH, CH 3 , CH 2 CH 3 , OCH 3 , CH 2 OH, CH 2 OCH 3 , CH 2 NH 2 , CH 2 NHCH 3j NH 2 , or CH 2 NH 2 , or R 1 and R 2 , taken together, form a fused optionally substituted pyrrolyl, pyrazolyl, or imidazolyl ring.
• Still other prefe ⁇ ed groups include hydrogen, NH 2 , or CH 2 NH 2 .
• R 3 groups of for compounds of formulas I-A-i and II-A-i are those wherein Z is a bond or is an optionally substituted C 0- alkylidene chain wherein one methylene unit of Z is optionally replaced by O, NR, NRCO, NRC0 2 , NRS0 2 , CONR, C(O), C(0)0, and wherein R 7 is selected from halogen, CN, N(R') 2 , NHCOR', or R'.
• R 3 is (CH 2 ) n halogen, (CH 2 ) n CN, (CH 2 ) n OR 7 , (CH 2 ) n NRR 7 , (CH 2 ) n C(0)R 7 , (CH 2 ) n C(0)R 7 (CH 2 ) n CH 3 , (CH 2 ) n C(0)NRR 7 , (CH 2 ) n SR 7 , wherein R 7 is (CH 2 ) m N(R') 2 , Ci-C 4 alkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, n is 0 or 1, and m is 0 or 1.
• R 3 is hydrogen or methyl.
• Preferred R 4 groups of for compounds of formulas I-A-ii and II-A-ii are those wherein Z is a bond or is an optionally substituted Co -4 alkylidene chain wherein one methylene unit of Z is optionally replaced by O, NR, NRCO, NRC0 2 , NRS0 2 , CONR, C(O), C(0)0, and wherein R 7 is selected from halogen, CN, N(R') 2 , NHCOR', or R'.
• R 4 is (CH 2 ) administrathalogen, (CH 2 ) n CN, (CH 2 ) n OR 7 , (CH 2 ) n NRR 7 , (CH 2 ) n C(0)R 7 , (CH 2 ) n C(0)R 7 (CH 2 ) n CH 3 , (CH 2 ) necessarilyC(0)NRR 7 , (CH 2 ) n SR 7 , wherein R 7 is (CH 2 ) m N(R') 2 , - alkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R 7 , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, n is 0 or 1, and m is 0 or 1.
• R 4 is hydrogen or methyl.
• Preferred R 3 groups of for compounds of formulas I-B-i and II-B-i are those wherein Z is a bond or is an optionally substituted C 0- alkylidene chain wherein one methylene unit of Z is optionally replaced by O, NR, NRCO, NRC0 2 , NRS0 2 , CONR, C(O), C(0)0, and wherein R 7 is selected from halogen, CN, N(R') 2 , NHCOR', or R'.
• R 3 is (CH 2 ) n halogen, (CH 2 ) n CN, (CH ) n OR 7 , (CH 2 ) exclusivelyNRR 7 , (CH 2 ) n C(0)R 7 , (CH 2 ) n C(0)R 7 (CH 2 ) n CH 3 , (CH 2 ) n C(0)NRR 7 , (CH 2 ) distractSR 7 , wherein R 7 is (CH 2 ) m N(R') 2 , C 1 -C 4 alkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R 7 , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, n is 0 or 1, and m is 0 or 1.
• R 3 is hydrogen or methyl.
• Preferred R 4 groups of for compounds of formulas I-B-ii and II-B-ii are those wherein Z is a bond or is an optionally substituted C 0-4 alkylidene chain wherein one methylene unit of Z is optionally replaced by O, NR, NRCO, NRC0 2 , NRS0 2 , CONR, C(O), C(0)0, and wherein R 7 is selected from halogen, CN, N(R') 2 , NHCOR', or R'.
• R 4 is (CH 2 ) n halogen, (CH 2 ) n CN, (CH 2 ) n OR 7 , (CH 2 ) n NRR 7 , (CH 2 ) n C(0)R 7 , (CH 2 ) n C(0)R 7 (CH 2 ) n CH 3 , (CH 2 ) n C(0)NRR 7 , (CH 2 ) n SR 7 , wherein R 7 is (CH 2 ) m N(R') 2 , C ⁇ -C 4 alkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R 7 , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, n is 0 or 1, and m is 0 or 1.
• R 4 is hydrogen or methyl.
• Preferred R groups of for compounds of formulas I-C-i and II-C-i are those wherein Z is a bond or is an optionally substituted Co -4 alkylidene chain wherein one methylene unit of Z is optionally replaced by O, NR, NRCO, NRC0 2 , NRS0 2 , CONR, C(O), C(0)0, and wherein R 7 is selected from halogen, CN, N(R') 2 , NHCOR', or R'.
• R 3 is (CH 2 ) n halogen, (CH 2 ) n CN, (CH 2 ) n OR 7 , (CH 2 ) n NRR 7 , (CH 2 ) n C(0)R 7 , (CH 2 ) n C(0)R 7 (CH 2 ) n CH 3 , (CH 2 ) n C(0)NRR 7 , (CH 2 ) distractSR 7 , wherein R 7 is (CH 2 ) m N(R') 2 , Ci-C 4 alkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R 7 , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, n is 0 or 1, and m is 0 or 1.
• R 3 is hydrogen or methyl.
• Preferred R 4 groups of for compounds of formulas I-C-ii and Il-C-ii are those wherein Z is a bond or is an optionally substituted C 0-4 alkylidene chain wherein one methylene unit of Z is optionally replaced by O, NR, NRCO, NRC0 2 , NRS0 2 , CONR, C(O), C(0)0, and wherein R 7 is selected from halogen, CN, N(R') 2 , NHCOR', or R'.
• R 4 is (CH 2 ) n halogen, (CH 2 ) n CN, (CH 2 ) n OR 7 , (CH 2 ) n NRR 7 , (CH 2 ) n C(0)R 7 , (CH 2 ) n C(0)R 7 (CH 2 ) n CH 3 , (CH 2 ) n C(0)NRR 7 , (CH 2 ) n SR 7 , wherein R 7 is (CH 2 ) m N(R') 2 , -Qalkyl, an optionally substituted 5- or 6-membered aryl, aralkyl, heteroaryl, or heteroaralkyl group, or R and R 7 , taken together with the nitrogen atom to which they are bound form an optionally substituted 3-8-membered saturated or partially unsaturated ring having 1-3 heteroatoms selected from nitrogen, oxygen, or sulfur, n is 0 or 1, and m is 0 or 1.
• R 4 is hydrogen or methyl.
• each occu ⁇ ence of Y-R 8 is independently methyl, ethyl, t-butyl, fluoro, chloro, bromo, oxo, CF 3 , OMe, OEt, CN, S0 2 Me, S0 2 NH 2 , NH 2 , NHMe, N(Me) 2 , SMe, SEt, OH, C(0)Me, N0 2 , or CH 2 OH.
• q is 0, 1, or 2.
• compounds have one of formulas II-A-i, II-B- i, or II-C-i, wherein the compound variables are defined as: a) x is 0, 1, 2, or 3 and Q-R 5 is CH 2 halogen, halogen, CH 2 CN, CN, CH 2 C0 2 R', C0 2 R', CH 2 COR ⁇ COR', R', CH 2 N0 2 , N0 2 , CH 2 OR', OR', CH 2 SR', SR', haloalkyl, CH 2 S0 2 N(R') 2 , S0 2 N(R') 2 , CH 2 N(R') 2 , N(R') 2 , NHCOR', CH 2 NHCOR', CH 2 PO(OR') 2 , PO(OR') 2 , or Q-R 5 , taken together with the atoms to which they are bound, form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5-8
• compounds have one of formulas II-A-ii, II- B-ii, or Il-C-ii, wherein one or more of the compound variables are defined as: a) x is 0, 1, 2, or 3, and Q-R 5 is CH 2 halogen, halogen, CH 2 CN, CN, CH 2 C0 2 R ⁇ C0 2 R ⁇ CH 2 COR', COR', R ⁇ CH 2 N0 2 , N0 2 , CH 2 OR ⁇ OR', CH 2 SR ⁇ SR', haloalkyl, CH 2 S0 2 N(R') 2 , S0 2 N(R') 2 , CH 2 N(R') 2 , N(R') 2 , NHCOR', CH 2 NHCOR', CH 2 PO(OR') 2 , PO(OR') 2 , or Q-R 5 , taken together with the atoms to which they are bound, form an optionally substituted saturated, partially unsaturated, or fully unsaturated
• compounds have formula II-E-i, wherein one or more of the compound variables are defined as: a) x is 0, 1, 2, or 3, and Q-R 5 is CH 2 halogen, halogen, CH 2 CN, CN, CH 2 C0 2 R ⁇ C0 2 R ⁇ CH 2 COR', COR', R', CH 2 N0 2 , N0 2 , CH 2 OR', OR', CH 2 SR', SR', haloalkyl, CH 2 S0 2 N(R') 2 , S0 2 N(R') 2 , CH 2 N(R') 2 , N(R') 2 , NHCOR', CH 2 NHCOR', CH 2 PO(OR') 2 , PO(OR') 2 , or Q-R 5 , taken together with the atoms to which they are bound, form an optionally substituted saturated, partially unsaturated, or fully unsaturated 5-8-membered ring having 0-3 heteroatoms selected
• Scheme I shows a general synthetic route that may be used used for preparing compounds of formula I.
• Reagents and conditions (a) DMF-DMA, THF, 12-18 hours, room temperature; (b) Ethanol, reflux, 12-18 hours.
• step (a) a solution of 2-acetyl thiazole A in THF is treated with dimethylforman ide-dimetlrylacelal and the resulting mixture sti ⁇ ed at room temperature over night. The reaction mixture is concentrated in vacuo and the concentrate triturated with diethyl ether to afford B.
• step (b) guanidine C is combined with enaminone B in ethanol in a sealed tube. The resulting mixture is heated at reflux overnight then concentrated and the crude product purified by column chromatography to afford the desired pyrimidine compound I.
• phenylguanidine C-i is prepared and used to generate compounds of general formula II, as depicted generally below.
• Scheme UI depicts the synthesis of exemplary compounds where R 3 or R 4 isCH 2 OHorCH 2 NRR 7 : ?] Scheme III
• Scheme IV below depicts the synthesis of exemplary compounds where R 3 is CN or CH 2 Br.
• Scheme V depicts the synthesis of exemplary compounds where R >3 i •s CH 2 OMe or CH 2 CN.
• Scheme VI depicts the synthesis of exemplary compounds where R is
• Scheme VII below depicts the synthesis of exemplary compounds where both R 3 and R 4 are substituted (as depicted, where R 3 is Me and R 4 is (CH ) 2 OH).
• Schemes VIII and IX below depict the synthesis of exemplary compounds where bbootthh RR 33 aanndd RR 44 aarree ssuubbssttiittuted (as shown, where both R 3 and R 4 are methyl) [00109] Scheme VIII _N
• Schemes X, and XI below depict the synthesis of exemplary compounds where one of R 3 or R 4 is hydrogen and the other of R 3 or R 4 is NRR 7 .
• reaction conditions are as follows: (a) n-BuLi, ethylacetate; (b) PTSA, HC(OMe) 3 , MeOH; (c) n-BuLi, CC14; (d) TFA, DCM; (e) DMF.DMA; (f) EPA, NaOH; (g) Piperazine, DMSO; (h) ethylene diamine; (i) n-BuLi, CBr 4 . [00112] Scheme X
• Schemes XII, and XIII below depict the synthesis of exemplary compounds where R 3 and R 4 are taken together to form an optionally substituted saturated, partially unsaturated, or fully unsaturated 3-8-membered ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur. In certain exemplary embodiments, as depicted below, R 3 and R 4 are taken together to form an optionally substituted phenyl ring.
• Scheme XII depict the synthesis of exemplary compounds where R 3 and R 4 are taken together to form an optionally substituted saturated, partially unsaturated, or fully unsaturated 3-8-membered ring having 0-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur.
• R 3 and R 4 are taken together to form an optionally substituted phenyl ring.
• the present invention provides compounds that are inhibitors of protein kinases, and thus the present compounds are useful for the treatment of diseases, disorders, and conditions including, but not limited to immunodeficiency disorders, inflammatory diseases, allergic diseases, autoimmune diseases, proliferative disorders, immunologically-mediated diseases, or respiratory disorders.
• pharmaceutically acceptable compositions are provided, wherein these compositions comprise any of the compounds as described herein, and optionally comprise a pharmaceutically acceptable carrier, adjuvant or vehicle. In certain embodiments, these compositions optionally further comprise one or more additional therapeutic agents.
• certain of the compounds of present invention can exist in free form for treatment, or where appropriate, as a pharmaceutically acceptable derivative thereof.
• a pharmaceutically acceptable derivative includes, but is not limited to, pharmaceutically acceptable salts, esters, salts of such esters, or any other adduct or derivative which upon administration to a patient in need is capable of providing, directly or indirectly, a compound as otherwise described herein, or a metabolite or residue thereof.
• the term “pharmaceutically acceptable salt” refers to those salts which are, within the scope of sound medical judgement, suitable for use in contact with the tissues of humans and lower animals without undue toxicity, irritation, allergic response and the like, and are commensurate with a reasonable benefit/risk ratio.
• a “pharmaceutically acceptable salt” means any non-toxic salt or salt of an ester of a compound of this invention that, upon administration to a recipient, is capable of providing, either directly or indirectly, a compound of this invention or an inhibitorily active metabolite or residue thereof.
• the term “inhibitorily active metabolite or residue thereof” means that a metabolite or residue thereof is also an inhibitor of SYK or ZAP-70 kinase.
• compositions of this invention include those derived from suitable inorganic and organic acids and bases.
• Examples of pharmaceutically acceptable, nontoxic acid addition salts are salts of an amino group formed with inorganic acids such as hydrochloric acid, hydrobromic acid, phosphoric acid, sulfuric acid and perchloric acid or with organic acids such as acetic acid, oxalic acid, maleic acid, tartaric acid, citric acid, succinic acid or malonic acid or by using other methods used in the art such as ion exchange.
• inorganic acids such as hydrochloric acid, hydrobromic acid, phosphoric acid, sulfuric acid and perchloric acid
• organic acids such as acetic acid, oxalic acid, maleic acid, tartaric acid, citric acid, succinic acid or malonic acid or by using other methods used in the art such as ion exchange.
• salts include adipate, alginate, ascorbate, aspartate, benzenesulfonate, benzoate, bisulfate, borate, butyrate, camphorate, camphorsulfonate, citrate, cyclopentanepropionate, digluconate, dodecylsulfate, ethanesulfonate, formate, fumarate, glucoheptonate, glycerophosphate, gluconate, hemisulfate, heptanoate, hexanoate, hydroiodide, 2-hydroxy-ethanesulfonate, lactobionate, lactate, laurate, lauryl sulfate, malate, maleate, malonate, methanesulfonate, 2- naphthalenesulfonate, nicotinate, nitrate, oleate, oxalate, palmitate, pamoate, pectinate
• Salts derived from appropriate bases include alkali metal, alkaline earth metal, ammonium and N + (C 1- alkyl) 4 salts. This invention also envisions the quatemization of any basic nitrogen-containing groups of the compounds disclosed herein. Water or oil-soluble or dispersable products may be obtained by such quatemization.
• Representative alkali or alkaline earth metal salts include sodium, lithium, potassium, calcium, magnesium, and the like.
• Further pharmaceutically acceptable salts include, when appropriate, nontoxic ammonium, quaternary ammonium, and amine cations formed using counterions such as halide, hydroxide, carboxylate, sulfate, phosphate, nitrate, loweralkyl sulfonate and aryl sulfonate.
• the pharmaceutically acceptable compositions of the present invention additionally comprise a pharmaceutically acceptable carrier, adjuvant, or vehicle, which, as used herein, includes any and all solvents, diluents, or other liquid vehicle, dispersion or suspension aids, surface active agents, isotonic agents, thickening or emulsifying agents, preservatives, solid binders, lubricants and the like, as suited to the particular dosage form desired.
• a pharmaceutically acceptable carrier, adjuvant, or vehicle which, as used herein, includes any and all solvents, diluents, or other liquid vehicle, dispersion or suspension aids, surface active agents, isotonic agents, thickening or emulsifying agents, preservatives, solid binders, lubricants and the like, as suited to the particular dosage form desired.
• Remington's Pharmaceutical Sciences, Sixteenth Edition, E. W. Martin (Mack Publishing Co., Easton, Pa., 1980) discloses various carriers used in formulating pharmaceutically acceptable compositions
• any conventional carrier medium is incompatible with the compounds of the invention, such as by producing any undesirable biological effect or otherwise interacting in a deleterious manner with any other component(s) of the pharmaceutically acceptable composition, its use is contemplated to be within the scope of this invention.
• materials which can serve as pharmaceutically acceptable carriers include, but are not limited to, ion exchangers, alumina, aluminum stearate, lecithin, serum proteins, such as human serum albumin, buffer substances such as phosphates, glycine, sorbic acid, or potassium sorbate, partial glyceride mixtures of saturated vegetable fatty acids, water, salts or electrolytes, such as protamine sulfate, disodium hydrogen phosphate, potassium hydrogen phosphate, sodium chloride, zinc salts, colloidal silica, magnesium trisilicate, polyvinyl py ⁇ olidone, polyacrylates, waxes, polyethylene-polyoxypropylene- block polymers, wool fat, sugars such as lactose, glucose and sucrose; starches such as corn starch and potato starch; cellulose and its derivatives such as sodium carboxymethyl cellulose, ethyl cellulose and cellulose acetate; powdered tragacanth; malt; gelatin; tal
• a method for the treatment or lessening the severity of immunodeficiency disorders, inflammatory diseases, allergic diseases, autoimmune diseases, proliferative disorders, immunologically-mediated diseases, or respiratory disorders comprising administering an effective amount of a compound, or a pharmaceutically acceptable composition comprising a compound to a subject in need thereof.
• an "effective amount" of the compound or pharmaceutically acceptable composition is that amount effective for treating or lessening the severity of immunodeficiency disorders, inflammatory diseases, allergic diseases, autoimmune diseases, proliferative disorders, immunologically-mediated diseases, or respiratory disorders.
• the compounds and compositions, according to the method of the present invention may be administered using any amount and any route of administration effective for treating or lessening the severity of immunodeficiency disorders, inflammatory diseases, allergic diseases, autoimmune diseases, proliferative disorders, immunologically- mediated diseases, or respiratory disorders.
• the exact amount required will vary from subject to subject, depending on the species, age, and general condition of the subject, the severity of the infection, the particular agent, its mode of administration, and the like.
• the compounds of the invention are preferably formulated in dosage unit form for ease of administration and uniformity of dosage.
• dosage unit form refers to a physically discrete unit of agent appropriate for the patient to be treated.
• the specific effective dose level for any particular patient or organism will depend upon a variety of factors including the disorder being treated and the severity of the disorder; the activity of the specific compound employed; the specific composition employed; the age, body weight, general health, sex and diet of the patient; the time of administration, route of administration, and rate of excretion of the specific compound employed; the duration of the treatment; drugs used in combination or coincidental with the specific compound employed, and like factors well known in the medical arts.
• patient means an animal, preferably a mammal, and most preferably a human.
• compositions of this invention can be administered to humans and other animals orally, rectally, parenterally, intracisternally, intravaginally, intraperitoneally, topically (as by powders, ointments, or drops), bucally, as an oral or nasal spray, or the like, depending on the severity of the infection being treated.
• the compounds of the invention may be administered orally or parenterally at dosage levels of about 0.01 mg/kg to about 50 mg/kg and preferably from about 1 mg/kg to about 25 mg/kg, of subject body weight per day, one or more times a day, to obtain the desired therapeutic effect.
• Liquid dosage forms for oral administration include, but are not limited to, pharmaceutically acceptable emulsions, microemulsions, solutions, suspensions, syrups and elixirs.
• the liquid dosage forms may contain inert diluents commonly used in the art such as, for example, water or other solvents, solubilizing agents and emulsifiers such as ethyl alcohol, isopropyl alcohol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylene glycol, dimethylformamide, oils (in particular, cottonseed, groundnut, corn, germ, olive, castor, and sesame oils), glycerol, tetrahydrofurfuryl alcohol, polyethylene glycols and fatty acid esters of sorbitan, and mixtures thereof.
• inert diluents commonly used in the art such as, for example, water or other solvents,
• the oral compositions can also include adjuvants such as wetting agents, emulsifying and suspending agents, sweetening, flavoring, and perfuming agents.
• adjuvants such as wetting agents, emulsifying and suspending agents, sweetening, flavoring, and perfuming agents.
• injectable preparations for example, sterile injectable aqueous or oleaginous suspensions may be formulated according to the known art using suitable dispersing or wetting agents and suspending agents.
• the sterile injectable preparation may also be a sterile injectable solution, suspension or emulsion in a nontoxic parenterally acceptable diluent or solvent, for example, as a solution in 1,3-butanediol.
• acceptable vehicles and solvents that may be employed are water, Ringer's solution, U.S.
• sterile, fixed oils are conventionally employed as a solvent or suspending medium.
• any bland fixed oil can be employed including synthetic mono- or diglycerides.
• fatty acids such as oleic acid are used in the preparation of injectables.
• the injectable formulations can be sterilized, for example, by filtration through a bacterial-retaining filter, or by incorporating sterilizing agents in the form of sterile solid compositions which can be dissolved or dispersed in sterile water or other sterile injectable medium prior to use.
• a compound of the present invention In order to prolong the effect of a compound of the present invention, it is often desirable to slow the absorption of the compound from subcutaneous or intramuscular injection. This may be accomplished by the use of a liquid suspension of crystalline or amorphous material with poor water solubility. The rate of absorption of the compound then depends upon its rate of dissolution that, in turn, may depend upon crystal size and crystalline form. Alternatively, delayed absorption of a parenterally administered compound form is accomplished by dissolving or suspending the compound in an oil vehicle. Injectable depot forms are made by forming microencapsule matrices of the compound in biodegradable polymers such as polylactide-polyglycolide.
• compositions for rectal or vaginal administration are preferably suppositories which can be prepared by mixing the compounds of this invention with suitable non-irritating excipients or carriers such as cocoa butter, polyethylene glycol or a suppository wax which are solid at ambient temperature but liquid at body temperature and therefore melt in the rectum or vaginal cavity and release the active compound.
• Solid dosage forms for oral administration include capsules, tablets, pills, powders, and granules.
• the active compound is mixed with at least one inert, pharmaceutically acceptable excipient or carrier such as sodium citrate or dicalcium phosphate and/or a) fillers or extenders such as starches, lactose, sucrose, glucose, mannitol, and silicic acid, b) binders such as, for example, carboxymethylcellulose, alginates, gelatin, polyvinylpyrrolidinone, sucrose, and acacia, c) humectants such as glycerol, d) disintegrating agents such as agar— agar, calcium carbonate, potato or tapioca starch, alginic acid, certain silicates, and sodium carbonate, e) solution retarding agents such as paraffin, f) absorption accelerators such as quaternary ammonium compounds, g) wetting agents such as, for example, cetyl
• Solid compositions of a similar type may also be employed as fillers in soft and hard-filled gelatin capsules using such excipients as lactose or milk sugar as well as high molecular weight polyethylene glycols and the like.
• the solid dosage forms of tablets, dragees, capsules, pills, and granules can be prepared with coatings and shells such as enteric coatings and other coatings well known in the pharmaceutical formulating art. They may optionally contain opacifying agents and can also be of a composition that they release the active ingredient(s) only, or preferentially, in a certain part of the intestinal tract, optionally, in a delayed manner. Examples of embedding compositions that can be used include polymeric substances and waxes. Solid compositions of a similar type may also be employed as fillers in soft and hard-filled gelatin capsules using such excipients as lactose or milk sugar as well as high molecular weight polethylene glycols and the like.
• the active compounds can also be in micro-encapsulated form with one or more excipients as noted above.
• the solid dosage forms of tablets, dragees, capsules, pills, and granules can be prepared with coatings and shells such as enteric coatings, release controlling coatings and other coatings well known in the pharmaceutical formulating art.
• the active compound may be admixed with at least one inert diluent such as sucrose, lactose or starch.
• Such dosage forms may also comprise, as is normal practice, additional substances other than inert diluents, e.g., tableting lubricants and other tableting aids such a magnesium stearate and microcrystalline cellulose.
• the dosage forms may also comprise buffering agents. They may optionally contain opacifying agents and can also be of a composition that they release the active ingredient(s) only, or preferentially, in a certain part of the intestinal tract, optionally, in a delayed manner.
• buffering agents include polymeric substances and waxes.
• Dosage forms for topical or transdermal administration of a compound of this invention include ointments, pastes, creams, lotions, gels, powders, solutions, sprays, inhalants or patches.
• the active component is admixed under sterile conditions with a pharmaceutically acceptable carrier and any needed preservatives or buffers as may be required.
• Ophthalmic formulation, ear drops, and eye drops are also contemplated as being within the scope of this invention.
• the present invention contemplates the use of transdermal patches, which have the added advantage of providing controlled delivery of a compound to the body.
• Such dosage forms can be made by dissolving or dispensing the compound in the proper medium.
• Absorption enhancers can also be used to increase the flux of the compound across the skin.
• the rate can be controlled by either providing a rate controlling membrane or by dispersing the compound in a polymer matrix or gel.
• the compounds of the invention are useful as inhibitors of protein kinases.
• the compounds and compositions of the invention are inhibitors of one or more of SYK or ZAP-70, and thus, without wishing to be bound by any particular theory, the compounds and compositions are particularly useful for treating or lessening the severity of a disease, condition, or disorder where activation of one or more of SYK or ZAP-70 is implicated in the disease, condition, or disorder.
• the disease, condition, or disorder may also be referred to as "SYK or ZAP-70-mediated disease" or disease symptom.
• the present invention provides a method for treating or lessening the severity of a disease, condition, or disorder where activation or one or more of SYK or ZAP-70 is implicated in the disease state.
• the activity of a compound utilized in this invention as an inhibitor of SYK or ZAP-70 may be assayed in vitro, in vivo or in a cell line.
• In vitro assays include assays that determine inhibition of either the phosphorylation activity or ATPase activity of activated SYK or ZAP-70. Alternate in vitro assays quantitate the ability of the inhibitor to bind to SYK or ZAP-70. Inhibitor binding may be measured by radiolabelling the inhibitor prior to binding, isolating the inhibitor/SYK or inhibitor/ZAP-70, complex and determining the amount of radiolabel bound. Alternatively, inhibitor binding may be determined by running a competition experiment where new inhibitors are incubated with SYK or ZAP-70 bound to known radioligands.
• the term "measurably inhibit”, as used herein means a measurable change in SYK or ZAP-70 activity between a sample comprising said composition and a SYK or ZAP-70 kinase and an equivalent sample comprising SYK or ZAP-70 kinase in the absence of said composition.
• SYK-mediated disease or "SYK-mediated condition”, as used herein, means any disease or other deleterious condition in which SYK protein kinase is known to play a role. Such conditions include, without limitation, allergic disorders, especially asthma.
• ZAP-70-mediated condition means any disease or other deleterious condition in which ZAP-70 is known to play a role.
• Such conditions include, without limitation, autoimmune, inflammatory, proliferative, and hyperproliferative diseases and immunologically-mediated diseases including rejection of transplanted organs or tissues and Acquired Immunodeficiency Syndrome (AIDS).
• AIDS Acquired Immunodeficiency Syndrome
• ZAP-70-mediated conditions include diseases of the respiratory tract including, without limitation, reversible obstructive airways diseases including asthma, such as bronchial, allergic, intrinsic, extrinsic and dust asthma, particularly chronic or inveterate asthma (e.g. late asthma airways hyper-responsiveness) and bronchitis.
• asthma reversible obstructive airways diseases
• bronchial reversible obstructive airways diseases
• allergic, intrinsic, extrinsic and dust asthma particularly chronic or inveterate asthma (e.g. late asthma airways hyper-responsiveness) and bronchitis.
• ZAP-70 diseases include, without limitation, those conditions characterised by inflammation of the nasal mucus membrane, including acute rhinitis, allergic, atrophic thinitis and chronic rhinitis including rhinitis caseosa, hypertrophic rhinitis, rhinitis purulenta, rhinitis sicca and rhinitis medicamentosa; membranous rhinitis including croupous, fibrinous and pseudomembranous rhinitis and scrofoulous rhinitis, seasonal rhinitis including rhinitis nervosa (hay fever) and vasomotor rhinitis, sarcoidosis, farmer's lung and related diseases, fibroid lung and idiopathic interstitial pneumonia.
• ZAP-70-mediated conditions also include diseases of the bone and joints including, without limitation, (pannus formation in) rheumatoid arthritis, seronegative spondyloarthropathis (including ankylosing spondylitis, psoriatic arthritis and Reiter's disease), Behcet's disease, Sjogren's syndrome, and systemic sclerosis.
• diseases of the bone and joints including, without limitation, (pannus formation in) rheumatoid arthritis, seronegative spondyloarthropathis (including ankylosing spondylitis, psoriatic arthritis and Reiter's disease), Behcet's disease, Sjogren's syndrome, and systemic sclerosis.
• ZAP-70-mediated conditions also include diseases and disorders of the skin, including, without limiation, psoriasis, systemic sclerosis, atopical dermatitis, contact dermatitis and other eczematous dermatitis, sebo ⁇ hoetic dermatitis, Lichen planus, Pemphigus, bullous Pemphigus, epidermolysis bullosa, urticaria, angiodermas, vasculitides, erythemas, cutaneous eosinophilias, uveitis, Alopecia, areata and vernal conjunctivitis.
• diseases and disorders of the skin including, without limiation, psoriasis, systemic sclerosis, atopical dermatitis, contact dermatitis and other eczematous dermatitis, sebo ⁇ hoetic dermatitis, Lichen planus, Pemphigus, bullous Pemphigus, epiderm
• ZAP-70-mediated conditions also include diseases and disorders of the gastrointestinal tract, including, without limitation, Coeliac disease, proctitis, eosinophilic gastro-enteritis, mastocytosis, pancreatitis, Crohn's disease, ulcerative colitis, food-related allergies which have effects remote from the gut, e.g. migraine, rhinitis and eczema.
• ZAP-70-mediated conditions also include those diseases and disorders of other tissues and systemic disease, including, without limiation, multiple sclerosis, arth ⁇ rosclerosis, acquired immunodeficiency syndrome (AIDS), lupus erythematosus, systemic lupus, erythematosus, Hashimoto's thyroiditis, myasthenia gravis, type I diabetes, nephrotic syndrome, eosinophilia fascitis, hyper IgE syndrome, lepromatous leprosy, sezary syndrome and idiopathic thrombocytopenia purpura, restenosis following angioplasty, tumours (for example leukemia, lymphomas), artherosclerosis, and systemic lupus erythematosus.
• AIDS acquired immunodeficiency syndrome
• lupus erythematosus systemic lupus
• erythematosus Hashimoto's thyroiditis
• myasthenia gravis type I diabetes
• ZAP-70-mediated conditions also include allograft rejection including, without limitation, acute and chronic allograft rejection following for example transplantation of kidney, heart, liver, lung, bone marrow, skin and cornea; and chronic graft versus host disease.
• the compounds and pharmaceutically acceptable compositions of the present invention can be employed in combination therapies, that is, the compounds and pharmaceutically acceptable compositions can be administered concu ⁇ ently with, prior to, or subsequent to, one or more other desired therapeutics or medical procedures.
• the particular combination of therapies (therapeutics or procedures) to employ in a combination regimen will take into account compatibility of the desired therapeutics and/or procedures and the desired therapeutic effect to be achieved.
• the therapies employed may achieve a desired effect for the same disorder (for example, an inventive compound may be administered concu ⁇ ently with another agent used to treat the same disorder), or they may achieve different effects (e.g., control of any adverse effects).
• additional therapeutic agents that are normally administered to treat or prevent a particular disease, or condition are known as "appropriate for the disease, or condition, being treated”.
• the amount of additional therapeutic agent present in the compositions of this invention will be no more than the amount that would normally be administered in a composition comprising that therapeutic agent as the only active agent.
• the amount of additional therapeutic agent in the presently disclosed compositions will range from about 50% to 100% of the amount normally present in a composition comprising that agent as the only therapeutically active agent.
• the compounds of this invention or pharmaceutically acceptable compositions thereof may also be incorporated into compositions for coating implantable medical devices, such as prostheses, artificial valves, vascular grafts, stents and catheters.
• the present invention in another aspect, includes a composition for coating an implantable device comprising a compound of the present invention as described generally above, and in classes and subclasses herein, and a carrier suitable for coating said implantable device.
• the present invention includes an implantable device coated with a composition comprising a compound of the present invention as described generally above, and in classes and subclasses herein, and a carrier suitable for coating said implantable device.
• Vascular stents for example, have been used to overcome restenosis (re- na ⁇ owing of the vessel wall after injury).
• patients using stents or other implantable devices risk clot formation or platelet activation.
• These unwanted effects may be prevented or mitigated by pre-coating the device with a pharmaceutically acceptable composition comprising a kinase inhibitor.
• a pharmaceutically acceptable composition comprising a kinase inhibitor.
• Suitable coatings and the general preparation of coated implantable devices are described in US Patents 6,099,562; 5,886,026; and 5,304,121.
• the coatings are typically biocompatible polymeric materials such as a hydrogel polymer, polymethyldisiloxane, polycaprolactone, polyethylene glycol, polylactic acid, ethylene vinyl acetate, and mixtures thereof.
• the coatings may optionally be further covered by a suitable topcoat of fluorosilicone, polysaccarides, polyethylene glycol, phospholipids or combinations thereof to impart controlled
• Another aspect of the invention relates to inhibiting SYK or ZAP-70 activity in a biological sample or a patient, which method comprises administering to the patient, or contacting said biological sample with a compound of formula I or a composition comprising said compound.
• biological sample includes, without limitation, cell cultures or extracts thereof; biopsied material obtained from a mammal or extracts thereof; and blood, saliva, urine, feces, semen, tears, or other body fluids or extracts thereof.
• Inhibition of SYK or ZAP-70 kinase activity in a biological sample is useful for a variety of purposes that are known to one of skill in the art. Examples of such purposes include, but are not limited to, blood transfusion, organ-transplantation, biological specimen storage, and biological assays.
• Example 3 2-[2-(3,5-Dimethyl-phenylamino)-pyrimidin-4-yl]-thiazole-4- carbaldehyde (9a).
• Example 4 [4-(4-Bromomethyl-thiazol-2-yl)-pyrimidin-2-yl]-(3,5-dimethyl- phenyl)-amine (11a).
• Triphenylphosphine (84 mg, 0.38 mmol) in DCM was added dropwise to a solution of alcohol 7 (100 mg, 0.32 mmol) and carbon tetrabromide (127 mg, 0.38 mmol) in
• Example 5 (3,5-Dimethyl-phenyl)-[4-(4-methoxymethyl-thiazol-2-yl)-pyrimidin-
• Example 6 ⁇ 2-[2-(3,5-Dimethyl-phenylamino)-pyrimidin-4-yl]-thiazol-4-yl ⁇ - acetonitrile (13a).
• Example 7 ⁇ 2-[2-(3,5-Dimethyl-phenylamino)-pyrimidin-4-yl]-thiazol-4-yl ⁇ - acetic acid (14a).
• Example 8 l- ⁇ 4-Methyl-5-[2-(tetrahydro-pyran-2-yloxy)-ethyl]-thiazol-2-yl ⁇ - ethanone (16).
• 3-Amino-5-trifluoromethyl-phenol 45 To a solution of 3-Nitro-5- trifluoromethyl-phenol 44 (Log, 7.73mmol) was added a catalytic amount of 20% palladium hydroxide on carbon and the reaction was stirred under a hydrogen atmosphere (balloon) over the weekend resulting in complete conversion to product by TLC (40% EtOAc :Hexanes). The reaction was filtered to give 3-Amino-5-trifluoromethyl-phenol (1.2g, 6.76 mmol) as a brown/red oil.
• N-(3-Hydroxy-5-trifluoromethyI-phenyl)-guanidine 46 A solution of 3- Amino-5 -trifluoromethyl-phenol (0.21g, 1.19mmol), cyanamide (0.5g, 1.19mmol), 4N HC1 hi dioxane (2.975ml, 1.19mmol) in dioxane (10ml) was heated in a sealed tube at 80° C overnight resulting in complete conversion to product by TLC (10% MeOH:CH 2 Cl 2 ). The reaction was partitioned between ethyl acetate/saturated NH 4 CI solution and extracted. Some product remained in the aqueous phase after multiple extractions.
• Example 10 r4-(5-Piperazin-l-yl-thiazol-2-ylVpyrimidin-2-yll-(3.4.5- trimethoxy-phenvD-amine
• Example 11 N ⁇ 2-[2-(3,5-Dimethyl-phenylamino)-pyrimidin-4-yl]-thiazol-5- yl ⁇ -ethane- 1 ,2-diamine
• N-(3,5 dimethylphenyl) guanidinium nitrate was prepared using a procedure similar to that described in W09719065.
• the product was isolated as a yellow solid after purification by HPLC with 0.1% TFA/water acetonitrile as eluant (35mg, 45% last step);
• Example 12 [4-(5 -Piperazin- 1 -yl-thiazol-2- vD- yrimidin-2- yll -(3,5 dimethyl- phenvD-amine
• This compound was prepared from l-(5-Bromo-thiazol-2-yl)-ethanone (prepared as described above) and N-(3,5 dimethylphenyl) guanidinium nitrate (prepared using a procedure similar to that described in W09719065) using procedures similar to those described in methods E-G.
• This compound was prepared from l-(5-Piperidin-l-yl-thiazol-2-yl)-ethanone (prepared as described in method I) and N-(3,5 dimethylphenyl) guanidinium nitrate (prepared using a procedure similar to that described in W09719065) using procedures similar to those described in methods E-F.
• This compound was prepared from l-(5-Dimethylamino-thiazol-2-yl)-ethanone (prepared from dimethylamine and l-(5-Bromo-thiazol-2-yl)-ethanone in a procedure similar to that described in method I) and N-(3,5 dimethylphenyl) guanidinium nitrate (prepared using a procedure similar to that described in W09719065) using procedures similar to those described in methods E-F.
• Example 17 Methyl substituted thiazoles: [00249] 2-Chloro-4-f5-methyl-2'thiazolvnpyrimidine:
• Table 2 Exemplary NMR data for certain compounds of the invention (compound numbers refer to those numbers depicted in Table 1) are depicted below in Table
• An assay stock buffer solution was prepared containing all of the reagents listed above, with the exception of SYK, DTT, and the test compound of interest of the present invention.
• 56 ⁇ l of the test reaction was placed in a 96 well plate followed by the addition of 1 ⁇ l of 2 mM DMSO stock containing the test compound of the present invnetion (final compound concentration 30 ⁇ M).
• the plate was pre-incubated for -10 minutes at 30 °C and the reaction initiated by the addition of 10 ⁇ l of enzyme (final concentration 25 nM).
• Rates of reaction were obtained using a BioRad Ultramark plate reader (Hercules, CA) over a 5 minute read time at 30°C, and Ki values for the compounds of the present invention were determined according to standard methods.
• Compounds of the invention are useful as inhibitors of SYK.
• the following compounds exhibit K; values of 5.0 ⁇ M or less: 1-1, 1-2, 1-4, 1-5, 1-6, 1-7, 1-8, 1-9, 1-10, 1-12, 1-14, 1-15, 1-16, 1-17, 1-18, 1-19, 1-20, 1-22, 1-23, 1-26, 1-27, 1-28, 1-29, 1-30, 1-31, 1-32, 1- 33, 1-34, 1-35, 1-36, 1-37, 1-38, 1-41, 1-42, 1-43, 1-44, 1-45, 1-46, 1-47, 1-48, 1-49, 1-50, 1-51, 1-52, 1-58, 1-63, 1-64, 1-66, 1-67, 1-70, 1-71, 1-72, 1-73, 1-74, 1-75, 1-76, 1-77, 1-78, 1-79, 1- 81, 1-83, 1-84, 1-85, 1-86, 1-87, 1-88, 1-89, 1-90, 1-91, 1-92, 1-93, 1-94, 1-
• Example 2 ZAP-70 Inhibition Assay
• Compounds were screened for their ability to inhibit ZAP-70 using a standard coupled enzyme assay (Fox et al., Protein Sci. 1998, 7, 2249). Assays were carried out in a mixture of 100 mM HEPES (pH 7.5), 10 mM MgCl 2 , 25 mM NaCl , 2 mM DTT and 3% DMSO. Final substrate concentrations in the assay were 100 ⁇ M ATP (Sigma Chemicals) and 20 ⁇ M peptide (poly-4EY, Sigma Chemicals). Assays were carried out at 30 °C and 60 nM ZAP-70.
• An assay stock buffer solution was prepared containing all of the reagents listed above, with the exception of ZAP-70 and the test compound of interest of the present invention. 55 ⁇ l of the stock solution was placed in a 96 well plate followed by addition of 2 ⁇ l of DMSO stock containing serial dilutions of the test compound of the present invention (typically starting from a final concentration of 15 ⁇ M). The plate was preincubated for 10 minutes at 30°C and the reaction initiated by addition of 10 ⁇ l of enzyme (final concentration 60 nM). Initial reaction rates were determined with a Molecular Devices SpectraMax Plus plate reader over a 15 minute time course. Ki data was calculated from non-linear regression analysis using the Prism software package (GraphPad Prism version 3.0a for Macintosh, GraphPad Software, San Diego California, USA).
• Compounds of the invention are useful as inhibitors of ZAP-70.
• the following compounds exhibit Kj values of 5.0 ⁇ M or less: 1-1, 1-2, 1-4, 1-5, 1-6, 1-7, 1-8, 1-9, 1-10, 1-12, 1-14, 1-15, 1-16, 1-17, 1-18, 1-19, 1-20, 1-22, 1-23, 1-26, 1-27, 1-28, 1-29, 1-30, 1-31, 1-32, 1- 34, 1-35, 1-36, 1-37, 1-38, 1-41, 1-42, 1-43, 1-44, 1-45, 1-46, 1-47, 1-48, 1-49, 1-50, 1-51, 1-52, 1-63, 1-64, 1-66, 1-70, 1-71, 1-72, 1-73, 1-74, 1-75, 1-76, 1-77, 1-78, 1-79, 1-81, 1-83, 1-84, 1- 85, 1-86, 1-87, 1-88, 1-89, 1-90, 1-91, 1-92, 1-93, 1-94, 1-95, 1-97, 1-100, 1-

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• 2004
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