A multi-kinase inhibitor; inhibits EphB2, EphA3, Kit, FMS, VEGFR2/KDR, FLT1, FGR, Src, Lyn, BMX, and Bcr-Abl in tyrosine kinase-transformed Ba/F3 cells (EC50s = 50s = 51 and 14 nM, respectively); inhibits wild-type and mutant RET kinases (IC50s = 24.7, 94.2, and 15.8 nM for wild-type, RETV804L, and RETV804M, respectively); reduces growth of NCI-H2286 and HCC-366 cancer cells (GI50s = 0.51 and 0.65 μM, respectively) and RAT1 cells transformed by RETC634R or RETM918T (IC50s = 44 and 56 nM, respectively); inhibits tumor growth in vivo in a mouse PDX model of EphA2-overexpressing TNBC,