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