Adenosine, 8-[(2E)-[(3-ethoxyphenyl)methylene]hydrazino]-

Adenosine, 8-[(2E)-[(3-hydroxyphenyl)methylene]hydrazino]-

Adenosine, 8-[(2E)-[(2-chlorophenyl)methylene]hydrazino]-

Adenosine, 8-[(2E)-[(2-hydroxyphenyl)methylene]hydrazino]-

Adenosine, 8-[(2E)-(phenylmethylene)hydrazino]-

Thymidine, 3′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 5′-[2-[[[(4-methoxyphenyl)diphenylmethyl]thio]oxy]cyclohexyl carbonate]

Thymidine, 3′-O-[(1,1-dimethylethyl)dimethylsilyl]-, 5′-[2-[[[[(4-methoxyphenyl)diphenylmethyl]thio]oxy]methyl]-5-nitrobenzoate]

Ethyl 6-[[7-[5-O-(hydroxy-4-morpholinylphosphinyl)-β-D-ribofuranosyl]-7H-purin-6-yl]amino]hexanoate

Ethyl 6-[[7-[5-O-[4-morpholinyl(2,2,2-tribromoethoxy)phosphinyl]-β-D-ribofuranosyl]-7H-purin-6-yl]amino]hexanoate

6-Chloro-7-[5-O-[4-morpholinyl(2,2,2-tribromoethoxy)phosphinyl]-β-D-ribofuranosyl]-7H-purine

Cytidine, 2′-deoxy-N-[(dimethylamino)carbonyl]-5-methyl-

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

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

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[[(2-methoxyethyl)amino]carbonyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, N-[(butylamino)carbonyl]-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(ethylamino)carbonyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(methylamino)carbonyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[[(2-methoxyethyl)amino]carbonyl]-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-N-[(butylamino)carbonyl]-2′-deoxy-

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[(ethylamino)carbonyl]-