Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[2-(dimethylamino)ethyl]-N,5-dimethyl-

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

Cytidine, N-[4-(acetyloxy)butyl]-2′-deoxy-5-methyl-

Cytidine, 2′-deoxy-N,5-dimethyl-N-[2-(dimethylamino)ethyl]-

Cytidine, 2′-deoxy-N,5-dimethyl-N-2-propenyl-

Cytidine, N-[4-(acetyloxy)butyl]-2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-

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

Cytidine, 2′-deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(4-hydroxybutyl)-5-methyl-

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

Thymidine, 3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-4-O-(2-nitrophenyl)-

3′-Cytidylic acid, P-(2-chlorophenyl)-N-(4-methoxybenzoyl)-5′-O-[phenoxy[(phenylmethyl)amino]phosphinyl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)adenylyl-(3′→5′)-N-benzoyl-P-(2-chlorophenyl)-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)guanylyl-(3′→5′)-N-(4-methoxybenzoyl)-2′-O-(tetrahydro-4-methoxy-2H...

2′-Guanylic acid, P-(2-chlorophenyl)-5′-O-(1,4-dioxopentyl)-N-(4-methoxybenzoyl)-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)cytidylyl-(3′→5′)-P-(2-chlorophenyl)-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)uridylyl-(3′→5′)-N-benzoyl-P-(2-chlorophenyl)-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)guanylyl-(3′→...

3′-Cytidylic acid, N-benzoyl-P-(2-chlorophenyl)-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)guanylyl-(3′→5′)-N-(4-methoxybenzoyl)-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 2-chlorophenyl 2,2,2-trichloroethyl ester

3′-Adenylic acid, N-(4-methoxybenzoyl)-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, mono(2-chlorophenyl) ester, 5′-[phenyl (phenylmethyl)phosphoramidate]

2′-Guanylic acid, N-benzoyl-P-(2-chlorophenyl)-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)guanylyl-(3′→5′)-N-benzoyl-, diphenyl ester, 3′-propanoate

3′-Cytidylic acid, N-(4-methoxybenzoyl)-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 2-chlorophenyl 2,2,2-trichloroethyl ester, 5′-[(4-chlorophenoxy)acetate]

3′-Uridylic acid, 2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 2-chlorophenyl 2,2,2-trichloroethyl ester, 5′-[(4-chlorophenoxy)acetate]

Uridine, 5′-O-[hydroxy(phosphonooxy)phosphinyl]uridylyl-(3′→5′)-

Adenosine, 5′-deoxy-5′-[(2-nitrophenyl)seleninyl]-

Adenosine, 5′-Se-(2-nitrophenyl)-5′-seleno-