[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Grindelia hirsutula, Grindelia squarrosa, and Grindelia camporum with data available."}, {"from": "gpt", "value": "[C][C@][Branch2][Ring1][S][C][C][C@@][Branch1][Ring2][O][Ring1][Branch1][C][=Branch1][C][=C][C][=C][C@H1][C@@][Ring1][Branch2][Branch1][O][C][C][C][C][Ring1][=Branch1][Branch1][C][C][C][C][C][C][=Branch1][C][=O][O][C]"}]