Abstract: The present invention relates to pyridines or pyrazines that inhibit kinases. In particular the compounds of the invention inhibit members of the class III PTK receptor family such as FMS (CSF-IR), c-KIT, PDGFR?, PDGFR? or FLT3 and KDR, SRC, EphA2, EphA3, EphA8, FLT1, FLT4, HCK, LCK, PTK5 (FRK), SYK, DDR1 and DDR2 and RET. The compounds of the invention are useful in the treatment of kinase associated diseases such as immunological and inflammatory diseases; hyperproliferative diseases including cancer and diseases involving neo-angiogenesis; renal and kidney diseases; bone remodeling diseases; metabolic diseases; and vascular diseases.

Abstract: The present invention relates to N-containing heterocyclic compounds that are inhibitors of protein kinases including JAK kinases. In particular, the compounds are selective for JAK1, JAK2, JAK3 or TYK2 kinases and combinations thereof such as JAK1 and JAK2. The kinase inhibitors can be used in the treatment of kinase associated diseases such as immunological and inflammatory diseases including organ transplants; hyperproliferative diseases including cancer and myeloproliferative diseases; viral diseases; metabolic diseases; and vascular diseases.