[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a dipeptide formed from L-histidine and L-alanine residues. It has a role as a metabolite. It is a tautomer of a His-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][N][=C][N][Ring1][Branch1][N]"}]