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BMS 777607 is a novel, selective and orally available ATP-competitive MET kinase inhibitor that primarily targets several MET family members, including RON, MET, Tyro-3 and AxI, with half maximal inhibitory concentration IC50 of 1.8 nmol/L, 3.9 nmol/L, 4.3 nmol/L and 1.1 nmol/L respectively. Moreover, at higher concentrations, BMS 777607 has been found to inhibit other protein tyrosine kinases, including Mer, Flt-3, Aurora B, Lck and VEGFR2 with IC50 of 14 nmol/L, 16 nmol/L, 78 nmol/L, 120 nmol/L and 180 nmol/L respectively. In previous studies, BMS 777607 potently inhibited the auto-phosphorylation of c-MET (IC50: 20 nmol/L) leading to impaired xenograft growth.

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