2′-Deoxy-1-[[1-(2-deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]methyl]adenosine

3′-Cytidylic acid, N-benzoyl-2′-deoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-, 2,5-dichlorophenyl 2-(4-nitrophenyl)ethyl ester

[P(S)]-P,3′-C-1,2-Ethanediyl-β-D-xylo-uridylyl-(3′→5′)-thymidine

1-[1-(2-Deoxy-β-D-erythro-pentofuranosyl)-1,2,3,4-tetrahydro-2,4-dioxo-5-pyrimidinyl]methyldioxy

[P(S)]-P-(2-Cyanoethyl)-2′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-C-[2-[[(4-methylphenyl)sulfonyl]oxy]ethyl]-β-D-xylo-uridylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]thymidine

[P(R)]-P,3′-C-1,2-Ethanediyl-β-D-xylo-uridylyl-(3′→5′)-thymidine

2′,5′-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-P,3′-C-1,2-ethanediyl-β-D-xylo-uridylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]thymidine

[P(R)]-P-(2-Cyanoethyl)-2′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-C-[2-[[(4-methylphenyl)sulfonyl]oxy]ethyl]-β-D-xylo-uridylyl-(3′→5′)-3′-O-[(1,1-dimethylethyl)dimethylsilyl]thymidine

1-(5-Chloro-5-deoxy-β-D-ribofuranosyl)-1H-benzimidazol-4-amine

1-[5-S-(3-Ethoxy-3-oxopropyl)-5-thio-β-D-ribofuranosyl]-1H-benzimidazol-4-amine

1-[5-S-(3-Amino-3-oxopropyl)-5-thio-β-D-ribofuranosyl]-1H-benzimidazol-4-amine

1-[5-S-(2-Carboxyethyl)-5-thio-β-D-ribofuranosyl]-1H-benzimidazol-4-amine

3′-Cytidylic acid, N-benzoyl-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 2-chlorophenyl 2-(phenylsulfonyl)ethyl ester

3′-Adenylic acid, N-benzoyl-5′-O-[9-[4-(octadecyloxy)phenyl]-9H-xanthen-9-yl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 2-chlorophenyl 2-(phenylsulfonyl)ethyl ester

3′-Adenylic acid, N-benzoyl-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 2-chlorophenyl 2-(phenylsulfonyl)ethyl ester

5′-S-(3-Amino-3-oxopropyl)-5′-thioadenosine

3′-Uridylic acid, 2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 2-chlorophenyl 2-(phenylsulfonyl)ethyl ester

3′-Cytidylic acid, N-benzoyl-5′-O-[9-[4-(octadecyloxy)phenyl]-9H-xanthen-9-yl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 2-chlorophenyl 2-(phenylsulfonyl)ethyl ester

3′-Adenylic acid, N-benzoyl-5′-O-[9-[4-(octadecyloxy)phenyl]-9H-xanthen-9-yl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, mono(2-chlorophenyl) ester

3′-Uridylic acid, 5′-O-[9-[4-(octadecyloxy)phenyl]-9H-xanthen-9-yl]-2′-O-(tetrahydro-4-methoxy-2H-pyran-4-yl)-, 2-chlorophenyl 2-(phenylsulfonyl)ethyl ester