[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an oxo dicarboxylic acid consisting of pimelic acid having a single oxo group at the 3-position. It is functionally related to a pimelic acid."}, {"from": "gpt", "value": "[C][Branch1][N][C][C][=Branch1][C][=O][C][C][=Branch1][C][=O][O][C][C][=Branch1][C][=O][O]"}]