[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a fluoroamino acid, a non-proteinogenic L-alpha-amino acid and a L-threonine derivative. It is a tautomer of a 4-fluoro-L-threonine zwitterion."}, {"from": "gpt", "value": "[C][Branch1][=C][C@H1][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][O][F]"}]