2-Amino-5-ethynyl-3,7-dihydro-7-[5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-4H-pyrrolo[2,3-d]pyrimidin-4-one

5-Ethynyl-7-[5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-ribofuranosyl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine

2-Amino-5-(4-dibenzofuranyl)-3,7-dihydro-7-β-D-ribofuranosyl-4H-pyrrolo[2,3-d]pyrimidin-4-one

Uridine, 2′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-(hydrogen phosphonothioate)

Guanosine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-N-(1-oxopropyl)-, 6-(diphenylcarbamate) 3′-(hydrogen phosphonothioate)

Cytidine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-N-(2-ethyl-1-oxobutyl)-, 3′-(hydrogen phosphonothioate)

Adenosine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-, 3′-(hydrogen phosphonothioate)

Uridine, 2′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-

Guanosine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-N-(1-oxopropyl)-, 6-(diphenylcarbamate)

Cytidine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)diphenylsilyl]-N-(2-ethyl-1-oxobutyl)-

Cytidine, 2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

Guanosine, 2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyadenylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-