[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a natural product found in Clausena excavata with data available."}, {"from": "gpt", "value": "[C][C][=Branch2][Ring2][#Branch2][=C][C][Branch2][Ring2][Ring2][C][C][Branch1][C][C][Branch2][Ring1][O][C][Branch2][Ring1][=Branch1][C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][C][=Branch1][C][=O][O][Ring1][=Branch2][O][O][O][C][=Branch1][C][=O][O]"}]