[{"from": "human", "value": "Could you provide a description of this molecule? [C][O][C][=Branch1][C][=O][C][=C][N][=C][N][Ring1][Branch1][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring1][O][=C][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][Ring1][#Branch2]"}, {"from": "gpt", "value": "The molecule is a stereoisomer of verapamil and third-generation P-glycoprotein inhibitor. Laniquidar inhibits the drug efflux pump P-glycoprotein, resulting in higher concentrations of antineoplastic agents in tumor cells that are multi-drug resistant due to the overexpression of P-glycoprotein. (NCI04)"}]