SMILES: C1=CN(C(=NCCCC[C@@H](C(=O)O)N)N=C1N)[C@H]2[C@@H]([C@@H]([C@H](O2)CO)O)O
Description: The molecule is cytidine in which the 2-keto group on the cytosine ring is substituted by an epsilon-Llysyl residue. It is a L-lysine derivative, a member of cytidines and a non-proteinogenic L-alpha-amino acid.