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