Cytidine, 2′-phosphate 5′-pyrophosphate

3′-Cytidylic acid, 2′-deoxy-5-methyl-, 5′-(dihydrogen phosphate)

(8R)-3-(3-Deoxy-5-S-methyl-5-thio-β-D-erythro-pentofuranosyl)-3,4,7,8-tetrahydroimidazo[4,5-d][1,3]diazepin-8-ol

2′,3′-O-[Bis(4-methoxyphenyl)methylene]-5′-O-(triphenylmethyl)uridine

(8R)-3,4,7,8-Tetrahydro-3-(5-S-methyl-5-thio-β-D-ribofuranosyl)imidazo[4,5-d][1,3]diazepin-8-ol

1,1-Dimethylethyl (8R)-3-(2,3-di-O-acetyl-5-S-methyl-5-thio-β-D-ribofuranosyl)-7,8-dihydro-8-hydroxyimidazo[4,5-d][1,3]diazepine-6(3H)-carboxylate

2′,3′-O-Cyclohexylidene-5′-O-(triphenylmethyl)uridine

2′-O-[(4-Methoxyphenyl)methyl]-5′-O-(triphenylmethyl)uridine

5′-O-[(1,1-Dimethylethyl)diphenylsilyl]-2′-thio-2′-S-[2-(trimethylsilyl)ethyl]cytidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-5-methyl-2′-thio-2′-S-[2-(trimethylsilyl)ethyl]uridine

Uridine, 2′-thio-2′-S-[2-(trimethylsilyl)ethyl]-, 3′-methanesulfonate

Uridine, 5-methyl-2′-thio-2′-S-[2-(trimethylsilyl)ethyl]-, 3′-methanesulfonate

Uridine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-thio-2′-S-[2-(trimethylsilyl)ethyl]-, 3′-methanesulfonate

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-thio-2′-S-[2-(trimethylsilyl)ethyl]uridine

2′-Deoxy-2′-[(trichloromethyl)dithio]cytidine

2′-Deoxy-2′-[(4-nitrophenyl)dithio]cytidine

(2R,3R,3aR,9aR)-2,3,3a,9a-Tetrahydro-3-hydroxy-2-(hydroxymethyl)-7-methyl-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one

2′-Deoxy-2′-[(4-nitrophenyl)dithio]uridine

5-Methyl-2′-thio-2′-S-[2-(trimethylsilyl)ethyl]uridine

Cytidine, N-benzoyl-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-thio-2′-S-[2-(trimethylsilyl)ethyl]-, 3′-methanesulfonate