[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a sesquiterpenoid."}, {"from": "gpt", "value": "[C][C@H1][C][C@H1][Branch2][Ring1][=Branch2][C][C@H1][C@@][Ring1][=Branch1][Branch1][P][C][C][=Branch1][=Branch1][=C][Branch1][C][C][C][C][=Branch1][C][=O][C][Ring1][#Branch2][C][O][C][=Branch1][C][=O][/C][=C][\\S][C]"}]