[{"from": "human", "value": "Provide a description of this molecule. [C][C][Branch1][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C][Branch1][#C][C][N][C][=Branch1][C][=O][/C][=C][/C][=Branch1][C][=O][O][C][N]"}, {"from": "gpt", "value": "The molecule is a dipeptide composed of 3-{[(2E)-4-methoxy-4-oxobut-2-enoyl]amino}alanine and L-valine joined by peptide linkages. It has a role as a metabolite. It is a dipeptide, a dicarboxylic acid monoester and a methyl ester. It is functionally related to a L-valine and a 3-aminoalanine."}]