[{"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][=C][C][Branch2][Ring1][Ring1][C@H1][Ring1][=Branch1][C][Branch1][=Branch2][C@H1][Branch1][Ring2][C][Ring1][=Branch2][C][O][Branch1][C][C][C][Branch1][C][C][C]"}]