[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an alloisoleucine and a D-alpha-amino acid. It is an enantiomer of a L-alloisoleucine. It is a tautomer of a D-alloisoleucine zwitterion."}, {"from": "gpt", "value": "[C][C][C@H1][Branch1][C][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]