[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch1][C][=O][N][C][C][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@H1][Branch1][Ring2][C][C][S][N]"}, {"from": "gpt", "value": "The molecule is a dipeptide in which the carboxy group of L-homocysteine forms an amide bond with the alpha-nitrogen of N(epsilon)-acetylated L-lysine."}]