[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Piptocoma antillana with data available."}, {"from": "gpt", "value": "[C][C][=C][Branch1][C][C][C][=Branch1][C][=O][O][C@H1][C][C@@][Branch2][Ring2][Ring2][C][=Branch1][C][=O][C][=C][Branch1][Ring2][O][Ring1][=Branch1][C@@H1][Branch2][Ring1][Ring2][C@@H1][Branch1][S][C@@H1][C@@H1][Ring1][N][C][=Branch1][C][=C][C][=Branch1][C][=O][O][Ring1][#Branch1][O][C][C]"}]