[{"from": "human", "value": "Describe this molecule. [C][O][C@@H1][C][C][C][=Branch1][C][=O][N][Ring1][=Branch1][C@@H1][C][=Branch1][=Branch1][=C][C][O][Ring1][Branch1][C][O][C][=Branch1][C][=O][C][=C][C][=C][N][Ring1][Branch1]"}, {"from": "gpt", "value": "The molecule is a natural product found in Brachystemma calycinum with data available."}]