Cytidine, 5′-deoxy-5-ethynyl-N-[[(3-methylpentyl)oxy]carbonyl]-

Cytidine, 5′-deoxy-5-ethynyl-N-[[(2-methylpentyl)oxy]carbonyl]-

Cytidine, 5′-deoxy-5-ethynyl-N-[(2-methylpropoxy)carbonyl]-

Cytidine, 5′-deoxy-5-ethynyl-N-[(1-methylethoxy)carbonyl]-

Cytidine, 5′-deoxy-5-ethynyl-N-(propoxycarbonyl)-

Cytidine, 5-cyano-5′-deoxy-N-[(pentyloxy)carbonyl]-

Cytidine, 5′-deoxy-N-[(pentyloxy)carbonyl]-5-[[3-(phenylmethoxy)phenyl]methyl]-

Cytidine, 5′-deoxy-N-[(pentyloxy)carbonyl]-5-(trifluoromethyl)-

Cytidine, 5′-deoxy-5-iodo-N-[(pentyloxy)carbonyl]-

Cytidine, 5′-deoxy-5-ethyl-N-[(pentyloxy)carbonyl]-

Cytidine, 5′-deoxy-5-ethynyl-N-[(pentyloxy)carbonyl]-

Cytidine, 5′-deoxy-5-ethenyl-, 2′,3′-diacetate

Cytidine, 5′-deoxy-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-[(pentyloxy)carbonyl]-5-[(trimethylsilyl)ethynyl]-

Cytidine, 5′-deoxy-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-iodo-N-[(pentyloxy)carbonyl]-

Cytidine, 5′-deoxy-5-iodo-, 2′,3′-diacetate

Cytidine, 5′-deoxy-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-ethynyl-N-[(pentyloxy)carbonyl]-

Cytidine, 5-cyano-5′-deoxy-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-

Cytidine, 5′-deoxy-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-[[3-(phenylmethoxy)phenyl]methyl]-

Cytidine, 5′-deoxy-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-(trifluoromethyl)-

Cytidine, 5′-deoxy-2′,3′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-iodo-