[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a N-acylpyrrolidine that is proline substituted by a propanoyl group at the nitrogen atom. It is a N-acylpyrrolidine, a pyrrolidinemonocarboxylic acid and a non-proteinogenic alpha-amino acid. It is functionally related to a proline."}, {"from": "gpt", "value": "[C][C][C][=Branch1][C][=O][N][C][C][C][C][Ring1][Branch1][C][=Branch1][C][=O][O]"}]