4-amino-1-((2R,4S,5R)-4-((trimethylsilyl)oxy)-5-(((trimethylsilyl)oxy)methyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one

N4-acetyl-O3',O5'-bis-(4-chloro-benzoyl)-2'-deoxy-cytidine

9H-fluoren-9-ylmethyl N-[1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]carbamate

Cytidine, 2'-deoxy-N-[(2-nitrophenyl)thio]-

2-deoxy-α-D-ribofuranose 1-phosphate