[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C@@H1][Branch1][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is an optically active form of alloisoleucine having L-(2S,3R)-configuration. It has a role as a human metabolite. It is a non-proteinogenic L-alpha-amino acid and an alloisoleucine. It is an enantiomer of a D-alloisoleucine. It is a tautomer of a L-alloisoleucine zwitterion."}]