[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is the carboxamide derivative of L-proline. It is an amino acid amide, a pyrrolidinecarboxamide and a L-proline derivative. It is a conjugate base of a (2S)-2-carbamoylpyrrolidin-1-ium."}, {"from": "gpt", "value": "[C][C][C@H1][Branch1][Branch1][N][C][Ring1][Branch1][C][=Branch1][C][=O][N]"}]