[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Sorbus cuspidata, Ligularia fischeri, and Ligularia dentata with data available."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=C][C@@H1][C][C][C][=C][C@H1][Ring1][=Branch1][O][C][=Branch1][C][=O][C][Ring1][=Branch1][=C][C][=Branch1][Ring2][=C][Ring1][#Branch2][O]"}]