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

Thymidine, P-(4-chlorophenyl)-5′-O-(triphenylmethyl)thymidylyl-(3′→5′)-P-(4-chlorophenyl)thymidylyl-(3′→5′)-, 3′-(4-oxopentanoate)

Thymidine, 5′-O-[(4-chlorophenoxy)hydroxyphosphinyl]-P-(4-chlorophenyl)thymidylyl-(3′→5′)-, 3′-(4-oxopentanoate)

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

Cytidine, 5′-O-[(4-chlorophenoxy)hydroxyphosphinyl]-P-(4-chlorophenyl)-2′-deoxy-N-(2-methyl-1-oxopropyl)guanylyl-(3′→5′)-2′-deoxy-N-(4-methoxybenzoyl)-, 3′-benzoate

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

Guanosine, 5′-O-[bis(phenylamino)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)-2′-deoxy-N-(4-methoxybenzoyl)cytidylyl-(3′→5′)-P-(4-chlorophenyl)-2′-deoxy-N-(4-methoxybenzoyl)cyt...

Cytidine, 5′-O-[bis(phenylamino)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)-2′-deoxy-N-(4-methoxybenzoyl)cytidylyl-(3′→5′)-2′-deoxy-N-(4-methoxybenzoyl)-, 3′-(4-oxopentanoate)

Uridine, 3′-(azidomethyl)-2′,3′-dideoxy-2′-fluoro-5-methyl-5′-O-(triphenylmethyl)-

1-[(4aR,5S,7R,7aR)-Hexahydro-2-thioxo-5-[(triphenylmethoxy)methyl]-2H-furo[3,4-e]-1,3-oxazin-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Uridine, 3′-(aminomethyl)-3′-deoxy-5-methyl-5′-O-(triphenylmethyl)-

Thymidine, 3′,3′′′-[carbonylbis(iminomethylene)]bis[3′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-

1-[(4aR,5S,7R,7aR)-5-[[[(1,1-Dimethylethyl)dimethylsilyl]oxy]methyl]hexahydro-2-oxo-2H-furo[3,4-e]-1,3-oxazin-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(4aR,5S,7R,7aR)-5-[[[(1,1-Dimethylethyl)dimethylsilyl]oxy]methyl]hexahydro-2-thioxo-2H-furo[3,4-e]-1,3-oxazin-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

Uridine, 3′-(azidomethyl)-3′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-, 2′-(O-phenyl carbonothioate)

1-[3-(Azidomethyl)-3-deoxy-5-O-(triphenylmethyl)-β-D-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

(2S,3R,3aS,9aR)-3-(Azidomethyl)-2,3,3a,9a-tetrahydro-7-methyl-2-[(triphenylmethoxy)methyl]-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-6-one

Uridine, 3′-(azidomethyl)-3′-deoxy-5-methyl-5′-O-(triphenylmethyl)-

3′,3′′′-[Carbonylbis(iminomethylene)]bis[3′-deoxythymidine]

1-[(4aR,5S,7R,7aR)-Hexahydro-5-(hydroxymethyl)-2-oxo-2H-furo[3,4-e]-1,3-oxazin-7-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione