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