[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a dipeptide formed from L-phenylalanine and L-alanine residues. It has a role as a metabolite. It is functionally related to a L-phenylalanine and a L-alanine. It is a tautomer of a Phe-Ala zwitterion."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N]"}]