[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a dicarboxylic acid monoanion resulting from the removal of a proton from one of the carboxylic acid groups of 3-hydroxy-3-methylglutaric acid. It has a role as a human metabolite and a plant metabolite. It is functionally related to a glutarate(1-). It is a conjugate base of a 3-hydroxy-3-methylglutaric acid. It is a conjugate acid of a 3-hydroxy-3-methylglutarate(2-)."}, {"from": "gpt", "value": "[C][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][O]"}]