[{"from": "human", "value": "Provide a brief overview of this molecule. [C][N][C][C][C][=C][C][C@@H1][C@H1][Branch1][=Branch1][C@@H1][Ring1][=Branch1][Ring1][=Branch2][C][=C][C][=Branch1][S][=C][Branch1][N][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][Ring1][N][O][O][C]"}, {"from": "gpt", "value": "The molecule is an alkaloid."}]