[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is the L-enantiomer of 3-oxoalanine. It has a role as an Escherichia coli metabolite. It is a 3-oxoalanine, a L-alanine derivative and a non-proteinogenic L-alpha-amino acid. It is functionally related to a L-serine. It is a conjugate acid of a L-3-oxoalaninate. It is a tautomer of a L-3-oxoalanine zwitterion."}, {"from": "gpt", "value": "[C][=Branch1][C][=O][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]