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