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