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