[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a natural product found in Periploca laevigata with data available."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=C][C@@H1][C][C@@H1][Branch1][P][C@@][Branch1][Branch2][C@@H1][Branch1][Ring2][C][Ring1][=Branch1][O][Branch1][Ring1][C][O][C][=C][C][=Branch1][C][=C][C]"}]