[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][#Branch2][C][C][N][C][C][=Branch1][C][=O][O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a lysine derivative found in proteins where the epsilon nitrogen of the amino acid residue is modified by a carboxymethyl group. This advanced glycation end product (AGE) is elevated in certain diseases and is associated with aging."}]