Guanosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[[2-(trimethylsilyl)ethoxy]carbonyl]-6-O-[2-(trimethylsilyl)ethyl]-, 3′-[2-(trimethylsilyl)ethyl bis(1-methylethyl)phosphoramidite]

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[[2-(trimethylsilyl)ethoxy]carbonyl]-, 3′-[2-(trimethylsilyl)ethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-N-[[2-(trimethylsilyl)ethoxy]carbonyl]-, 3′-[2-(trimethylsilyl)ethyl bis(1-methylethyl)phosphoramidite]

Cytidine, 2′-deoxy-3′,5′-bis-O-(trimethylsilyl)-N-[[2-(trimethylsilyl)ethoxy]carbonyl]-

5′-Inosinic acid, 6-S-methyl-2′,3′-O-(1-methylethylidene)-6-thio-, mono(2-chlorophenyl) ester

Thymidine, 3′-amino-3′-deoxy-P-(1-methylethyl)thymidylyl-(3′→5′)-3′-azido-3′-deoxy-

5′-Inosinic acid, 6-S-methyl-2′,3′-O-(1-methylethylidene)-6-thio-, 2-chlorophenyl 2-cyanoethyl ester

Uridine, 3′,5′-O-benzylidene-, 2′-acetate

Uridine, 3′,5′-O-benzylidene-, 2′-ester with diphenyl phosphate

Uridine, 5-chloro-3-methyl-

Theophylline, 7-(3-deoxy-β-D-ribofuranosyl)-

Phosphorous acid, benzyl ester, 5′-ester with 2′,3′-O-isopropylideneuridine

Theophylline, 7-(2,3-anhydro-α-D-lyxofuranosyl)-

Theophylline, 7-(5-O-trityl-β-D-xylofuranosyl)-, di-p-toluenesulfonate

Theophylline, 7-(5-O-trityl-α-D-arabinofuranosyl)-

Theophylline, 7-(3-S-ethyl-3-thio-α-D-arabinofuranosyl)-, diacetate

Theophylline, 7-(3-S-ethyl-3-thio-5-O-trityl-β-D-xylofuranosyl)-

Theophylline, 7-(5-O-trityl-α-D-arabinofuranosyl)-, di-p-toluenesulfonate

Theophylline, 7-β-D-xylofuranosyl-

Theophylline, 7-(3-deoxy-α-D-arabinofuranosyl)-