[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch2][Ring1][C][=N][N][=C][Ring1][#Branch1][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Cl][C][C][=C][C][=N][C][=C][Ring1][=Branch1].[C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is the succinate salt of vatalanib, an anilinophthalazine derivative, with antineoplastic activity.  Vatalanib binds to and inhibits the protein kinase domain of vascular endothelial growth factor receptors 1 and 2; both receptor tyrosine kinases are involved in angiogenesis.  This agent also binds to and inhibits related receptor tyrosine kinases, including platelet-derived growth factor (PDGF) receptor, c-Kit, and c-Fms."}]