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