Thymidine, 5′-O-[(4-chlorophenoxy)(2-cyanoethoxy)phosphinyl]-P-(4-chlorophenyl)-2′-deoxy-N-(4-methoxybenzoyl)cytidylyl-(3′→5′)-P-(4-chlorophenyl)thymidylyl-(3′→5′)-P-(4-chlorophenyl)-2′-deoxy-N-(4-methoxybenzoyl)cytidylyl-(3′→5′)-, 3′-(4-oxopentanoate)

Thymidine, 5′-O-[(4-chlorophenoxy)(2-cyanoethoxy)phosphinyl]-P-(4-chlorophenyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-P-(4-chlorophenyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-P-(4-chlorophenyl)thymidylyl-(3′→5′)-P-(4-chlorophenyl)thymidylyl-(3′→5′)-, 3′-(4-oxopentanoate)

Thymidine, 5′-O-[(4-chlorophenoxy)(2-cyanoethoxy)phosphinyl]-P-(4-chlorophenyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-P-(4-chlorophenyl)thymidylyl-(3′→5′)-P-(4-chlorophenyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-, 3′-(4-oxopentanoate)

Thymidine, 3′-(3,5-dinitrobenzoate) 5′-[2,4,6-tris(1-methylethyl)benzenesulfonate]

Thymidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-P-(4-chlorophenyl)thymidylyl-(3′→5′)-3′-O-(3,5-dinitrobenzoyl)-

Thymidine, 3′-(3,5-dinitrobenzoate)

Adenosine, N-benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-O-[2,2,2-trimethyl-1,1-bis(trimethylsilyl)disilanyl]-

Adenosine, N-benzoyl-2′-deoxy-3′-O-[(1,1-dimethylethyl)dimethylsilyl]-5′-C-hydroxy-

N-[(6S,7S,8S,10R)-8-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-7,8,9,10-tetrahydro-6-[[2,2,2-trimethyl-1,1-bis(trimethylsilyl)disilanyl]oxy]-7,10-epoxy-6H-azepino[1,2-e]purin-4-yl]benzamide

N-[(5aR,6S,7S,8S,10R)-8-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-5a,6,7,8,9,10-hexahydro-6-[[2,2,2-trimethyl-1,1-bis(trimethylsilyl)disilanyl]oxy]-7,10-epoxy-5H-azepino[1,2-e]purin-4-yl]benzamide

Thymidine, 3′-O-[(1,1-dimethylethyl)diphenylsilyl]-5′-O-[2,2,2-trimethyl-1,1-bis(trimethylsilyl)disilanyl]-

(4R,4aS,5S,6R,7S,9R)-7-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]hexahydro-5-hydroxy-4-methyl-6,9-epoxypyrimido[1,6-a]azepine-1,3(2H,4H)-dione

(4S,4aS,5R,6R,7S,9R)-7-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]hexahydro-5-hydroxy-4-methyl-6,9-epoxypyrimido[1,6-a]azepine-1,3(2H,4H)-dione

(4S,4aS,5R,6S,7S,9R)-7-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]hexahydro-4-methyl-5-[[2,2,2-trimethyl-1,1-bis(trimethylsilyl)disilanyl]oxy]-6,9-epoxypyrimido[1,6-a]azepine-1,3(2H,4H)-dione

(4S,4aS,5S,6S,7S,9R)-7-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]hexahydro-4-methyl-5-[[2,2,2-trimethyl-1,1-bis(trimethylsilyl)disilanyl]oxy]-6,9-epoxypyrimido[1,6-a]azepine-1,3(2H,4H)-dione

9H-Purin-6-amine, 9-[(5E)-7-[(2-cyclohexen-1-ylcarbonyl)amino]-5,6,7-trideoxy-β-D-ribo-hept-5-enofuranosyl]-

9H-Purin-6-amine, 9-[(5E)-5,6,7-trideoxy-7-[(3-methyl-1-oxobutyl)amino]-β-D-ribo-hept-5-enofuranosyl]-

9H-Purin-6-amine, 9-[(5E)-5,6,7-trideoxy-7-[(3,5-difluorobenzoyl)amino]-β-D-ribo-hept-5-enofuranosyl]-

9H-Purin-6-amine, 9-[(5E)-5,6,7-trideoxy-7-[[4-(3,5-dichlorophenoxy)-1-oxobutyl]amino]-β-D-ribo-hept-5-enofuranosyl]-

9H-Purin-6-amine, 9-[(5E)-5,6,7-trideoxy-7-[[(3,4-dichlorophenyl)acetyl]amino]-β-D-ribo-hept-5-enofuranosyl]-