3′-Guanylic acid, 2′-O-[(4-methoxyphenyl)methyl]-, 4-chlorophenyl 5-chloro-8-quinolinyl ester

3′-Guanylic acid, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(4-methoxyphenyl)methyl]-, 4-chlorophenyl 5-chloro-8-quinolinyl ester

Guanosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-O-[(4-methoxyphenyl)methyl]-

Guanosine, N-benzoyl-2′-O-[(4-methoxyphenyl)methyl]-, 3′,5′-diacetate

Cytidine, N-acetyl-2′-O-[(4-methoxyphenyl)methyl]-, 3′,5′-diacetate

Uridine, 2′-deoxy-5,6-dihydro-5-(3,3,3-trifluoro-1-methoxypropyl)-

Uridine, 2′-deoxy-5-[3,3,3-trifluoro-1-(1-methylethoxy)propyl]-

Uridine, 2′-deoxy-5-(3,3,3-trifluoro-1-hydroxypropyl)-

9-[3,5-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-(1-oxopentyl)-β-D-arabinofuranosyl]-9H-purin-6-amine

Thymidine, cyclic 3′,5′-(hydrogen phosphite), anhydride with dimethylcarbamic acid

Thymidine, cyclic 3′,5′-(phenyl phosphite), (R)-

Thymidine, cyclic 3′,5′-(phenyl phosphite), (S)-

9-[2-O-(1-Oxopentyl)-β-D-arabinofuranosyl]-9H-purin-6-amine

9-[2-O-(1-Oxobutyl)-β-D-arabinofuranosyl]-9H-purin-6-amine

9-[3,5-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-(1-oxobutyl)-β-D-arabinofuranosyl]-9H-purin-6-amine

9-[3,5-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-(1-oxopropyl)-β-D-arabinofuranosyl]-9H-purin-6-amine

9-[2-O-Acetyl-3,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-arabinofuranosyl]-9H-purin-6-amine

5′-Thymidylic acid, 3′-azido-3′-deoxy-, ethyl phenyl ester

Thymidine, 3′-azido-3′-deoxy-, 5′-(O-phenyl hydrogen phosphorothioate)

5′-Thymidylic acid, 3′-azido-3′-deoxy-, (4-nitrophenyl)methyl phenyl ester