2′-Deoxy-2′,2′-difluoro-5′-O-(2-methyl-1-propen-1-yl)cytidine

rel-1-[3-Azido-2,3-dideoxy-5-O-(phenylmethyl)-β-erythro-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

2-(Ethenylthio)ethyl N-[[1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]methyl]carbamate

2-(Ethenylthio)ethyl N-[[1-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]methyl]carbamate

Methyl 2-cyano-8-[[2-[[[[[1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]methyl]amino]carbonyl]oxy]ethyl]thio]-9,10-dihydro-8H-pyrano[2,3-h]quinoline-4-carboxylate

2-(Ethenylthio)ethyl N-[[1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]methyl]carbamate

2-(Ethenylthio)ethyl N-[[1-[2-deoxy-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]methyl]carbamate

α-Amino-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]thymidine

5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′-O-methyl-4′-C-[3-[(2,2,2-trifluoroacetyl)amino]propyl]uridine

4′-C-(3-Azidopropyl)-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-2′-O-methyl-3′-O-(phenylmethyl)uridine