[{"from": "human", "value": "Describe this molecule. [C][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is an optically active form of alpha-aminobutyric acid having D-configuration. It is an alpha-aminobutyric acid and a D-alpha-amino acid. It is an enantiomer of a L-alpha-aminobutyric acid."}]