5′-O-[(Diethoxyphosphinyl)methyl]-N-[(ethylamino)carbonyl]-2′,3′-O-[(2E)-3-phenyl-2-propen-1-ylidene]adenosine

N-Ethyl-N′-[9-[5,6,7-trideoxy-7-(diphenoxyphosphinyl)-2,3-O-[(2E)-3-phenyl-2-propen-1-ylidene]-β-D-ribo-hept-5-enofuranosyl]-9H-purin-6-yl]urea

N-Ethyl-N′-[9-[5,6,7-trideoxy-7-(diphenoxyphosphinyl)-2,3-O-[(2E)-3-phenyl-2-propen-1-ylidene]-β-D-ribo-heptofuranosyl]-9H-purin-6-yl]urea

5′-Deoxy-N-[(ethylamino)carbonyl]-5′-oxo-2′,3′-O-[(2E)-3-phenyl-2-propen-1-ylidene]adenosine

2′-Deoxy-5-[(3,5-dimethylphenyl)amino]cytidine

N-Ethyl-N′-[9-[5,6,7-trideoxy-2,3-O-[(2E)-3-phenyl-2-propen-1-ylidene]-7-phosphono-β-D-ribo-heptofuranosyl]-9H-purin-6-yl]urea

2′-Deoxy-8-[(3,5-dimethylphenyl)amino]inosine

1-[2-Deoxy-3-O-(1,4-dioxopentyl)-5-O-[(4-methoxyphenyl)diphenylmethyl]-β-D-erythro-pentofuranosyl]-5-methyl-4-(5-nitro-1H-tetrazol-1-yl)-2(1H)-pyrimidinone

2′-Deoxy-N-(3,5-dimethylphenyl)adenosine

3′-Thymidylic acid, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-, 2,5-dichlorophenyl 2-(4-nitrophenyl)ethyl ester

3′-Guanylic acid, 2′-deoxy-5′-O-[(4-methoxyphenyl)diphenylmethyl]-N-(2-methyl-1-oxopropyl)-, 2,5-dichlorophenyl 2-(4-nitrophenyl)ethyl ester

Guanosine 5′-(tetrahydrogen triphosphate), 7-methyl-, inner salt, P′′→5′-ester with guanosine, ion(2-)

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