SMILES: C1=C(N=C2C(=O)NC(=NC2=N1)N)CNCCCC[C@H](C(=O)O)N
Description: 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 derives from a 2-aminopteridin-4(3H)-one.