8-Bromo-2-methyl-2′,3′-O-(1-methylethylidene)adenosine

2-Ethyl-8-fluoro-2′,3′-O-(1-methylethylidene)adenosine

8-Chloro-2-methyl-2′,3′-O-(1-methylethylidene)adenosine

8-Fluoro-2-methyl-2′,3′-O-(1-methylethylidene)adenosine

8-Chloro-2′,3′-O-(1-methylethylidene)adenosine

N-(Butoxycarbonyl)-2′-deoxy-2′,2′-difluoro-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]cytidine

2′-Deoxy-5-ethynyl-2′,2′-difluorocytidine

Cytidine, N-(butoxycarbonyl)-2′-deoxy-2′,2′-difluoro-5-iodo-, 5′-(4-amino-1H-imidazole-1-acetate)

Cytidine, 5-bromo-2′-deoxy-2′,2′-difluoro-N-[[(4-nitrophenyl)methoxy]carbonyl]-, 3′-(1,1-dimethylethyl carbonate)

5-Bromo-2′-deoxy-2′,2′-difluoro-N-[[(4-nitrophenyl)methoxy]carbonyl]cytidine

Cytidine, 5-bromo-N-(butoxycarbonyl)-2′-deoxy-2′,2′-difluoro-, 3′-(1,1-dimethylethyl carbonate)

Cytidine, N-(butoxycarbonyl)-2′-deoxy-2′,2′-difluoro-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]-, 3′-(1,1-dimethylethyl carbonate) 5′-[2-[(3,5,6-trichloro-2-pyridinyl)oxy]acetate]

Cytidine, N-(butoxycarbonyl)-2′-deoxy-2′,2′-difluoro-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]-, 3′-(1,1-dimethylethyl carbonate)

N-(Butoxycarbonyl)-2′-deoxy-2′,2′-difluoro-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]-3′,5′-bis-O-(trimethylsilyl)cytidine

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[(phenylmethoxy)carbonyl]-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]-, 3′-(1,1-dimethylethyl carbonate) 5′-[2-[(3,5,6-trichloro-2-pyridinyl)oxy]acetate]

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[(phenylmethoxy)carbonyl]-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]-, 3′-(1,1-dimethylethyl carbonate)

2′-Deoxy-2′,2′-difluoro-N-[(phenylmethoxy)carbonyl]-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]cytidine

2′-Deoxy-2′,2′-difluoro-N-[(phenylmethoxy)carbonyl]-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]-3′,5′-bis-O-(trimethylsilyl)cytidine

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[[(4-nitrophenyl)methoxy]carbonyl]-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]-, 3′-(1,1-dimethylethyl carbonate) 5′-[2-[(3,5,6-trichloro-2-pyridinyl)oxy]acetate]

Cytidine, 2′-deoxy-2′,2′-difluoro-N-[[(4-nitrophenyl)methoxy]carbonyl]-5-[1-(phenylmethyl)-1H-1,2,3-triazol-4-yl]-, 3′-(1,1-dimethylethyl carbonate)