[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a dipeptide formed from L-tyrosine and glycine residues. It has a role as a metabolite. It is a tautomer of a Tyr-Gly zwitterion."}, {"from": "gpt", "value": "[C][=C][C][=Branch2][Ring1][=Branch1][=C][C][=C][Ring1][=Branch1][C][C@@H1][Branch1][N][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][O][N][O]"}]