[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][O][C][C][C][C][C][C][=Branch1][C][=O][O][C][C][C][C][/C][=C][\\C][C@@H1][Branch1][Branch1][C][=C][=C][Br][O]"}, {"from": "gpt", "value": "The molecule is a natural product found in Pleopsidium gobiense and Koelreuteria elegans with data available."}]