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