[{"from": "human", "value": "Provide a description of this molecule. [C][N][C@@H1][Branch1][#Branch1][C][C][C][Ring1][Branch1][=O][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is an alpha-amino acid ester that is the methyl ester of 1-methyl-5-oxo-L-proline. It is a L-proline derivative and an alpha-amino acid ester."}]