[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an isoform of methylhippuric acid where the methyl and glycine groups are bound to carbon-1 and carbon-3 on the benzene ring, respectively. Since 3-methylhippuric acid (3-MHA) is a metabolite of m-xylene, the measurement of 3-MHA in urine may be correlated to a subject's level of xylene exposure."}, {"from": "gpt", "value": "[C][C][=C][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O]"}]