[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Montagnula donacina with data available."}, {"from": "gpt", "value": "[C][C][=C][C@@][Branch2][Ring1][=Branch1][C][C@][Branch1][Branch1][C][O][Ring1][Branch1][C][C][C][C][=Branch1][C][=C][C][Ring1][=Branch2][C][Ring1][#Branch1][O][C][Ring1][S][=O]"}]