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