[{"from": "human", "value": "Please give me some details about this molecule. [C][C@H1][Branch1][#Branch1][N][C][C][Ring1][Branch1][=O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is the L-enantiomer of 4-oxoproline. It is a 4-oxoproline, a L-proline derivative and a non-proteinogenic L-alpha-amino acid. It is a tautomer of a 4-oxo-L-proline zwitterion."}]