[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][Branch2][Ring1][Ring1][N][=C][C][=Branch1][C][=O][N][C][=Branch1][Branch2][=N][C][Ring1][#Branch1][=N][Ring1][O][N][C][N][C][C][C][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N]"}, {"from": "gpt", "value": "The molecule is a D-lysine derivative in which D-lysine is substituted on N(6) by a (2-amino-4-oxo-3,4-dihydropteridin-6-yl)methyl group. It is a D-lysine derivative and a D-alpha-amino acid. It is functionally related to a 2-aminopteridin-4(3H)-one."}]