[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch1][C][C][S][C][C][=Branch1][C][=O][N][C@@H1][Branch1][=N][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a dipeptide obtained by formal condensation of the carboxy group of N-acetyl-L-methionine with the amino group of L-tyrosine. It is an acetamide and a dipeptide."}]