[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a dipeptide formed from L-tyrosine and L-alanine residues. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@H1][Branch1][=N][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][N]"}]