[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a tropane alkaloid."}, {"from": "gpt", "value": "[C][C][C@][Branch1][S][C@H1][Branch1][N][C][C@@H1][Branch1][#Branch1][C@@H1][Ring1][#Branch1][N][Ring1][=Branch1][O][O][O]"}]