[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a natural product found in Ligusticum grayi with data available."}, {"from": "gpt", "value": "[C][C@][C][C@@H1][Branch2][Ring1][#Branch1][C][Branch1][S][C@@H1][Ring1][Branch1][C][Branch1][=Branch1][C][C][=C][Ring1][=Branch2][Branch1][C][C][C][Branch1][C][C][C][C][O]"}]