[{"from": "human", "value": "Describe this molecule. [C][C][S][=Branch1][C][=O][=Branch1][C][=O][N][=C][N][Ring1][Branch2][C][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][Br][Br]"}, {"from": "gpt", "value": "The molecule is a dihydropyridine."}]