[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a 2-hydroxy fatty acid anion that is the conjugate base of 2,2-dihydroxy-3-methylbutanoic acid resulting from the deprotonation of the carboxy group. Major microspecies at pH 7.3. It has a role as a human metabolite. It is a conjugate base of a 2,2-dihydroxy-3-methylbutanoic acid."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][Branch1][C][O][O]"}]