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