[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a derivative of valeric acid having amino and oxo substituents at the 2- and 4-positions respectively. It is a 4-oxo monocarboxylic acid and a non-proteinogenic alpha-amino acid. It is functionally related to a valeric acid. It is a tautomer of a 2-amino-4-oxopentanoic acid zwitterion."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}]