[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a N-acylglycine obtained by formal condensation of the carboxy group of butyric acid with the amino group of glycine. It has a role as a human urinary metabolite. It is functionally related to a butyric acid. It is a conjugate acid of a butyrylglycinate."}, {"from": "gpt", "value": "[C][C][C][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O]"}]