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