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