Acetamide, N-[2-[[3-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-3-O-(3-carboxy-1-oxopropyl)-2-deoxy-β-D-erythro-pentofuranosyl]-2,3-dihydro-2-oxo-1H-pyrimido[5,4-b][1,4]benzoxazin-9-yl]oxy]ethyl]-2,2,2-trifluoro-

Adenosine, N,N′′-[(2S,3S)-2,3-dihydroxy-1,4-butanediyl]bis[2′-deoxy-

Adenosine, N,N′′-[(2R,3R)-2,3-dihydroxy-1,4-butanediyl]bis[2′-deoxy-

9-[3-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-fluoro-2-O-(phenoxythioxomethyl)-β-D-xylofuranosyl]-9H-purin-6-amine

Adenosine, 3′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3′-fluoro-, 2′-(O-phenyl carbonothioate)

9-[3-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-fluoro-β-D-xylofuranosyl]-9H-purin-6-amine

3'-Deoxy-5'-O-[(1,1-dimethylethyl)dimethylsilyl]-3'-fluoroadenosine

Adenosine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-2′-fluoro-, 3′-(O-phenyl carbonothioate)

2'-Deoxy-5'-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-fluoroadenosine

Thymidine, 5′-O-[tris[4-[[[2-(2-nitrophenyl)propoxy]carbonyl]oxy]phenyl]methyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Adenosine, 2′-deoxy-N-(2,2-dimethyl-1-oxopropyl)-5′-O-[tris[4-[[[2-(2-nitrophenyl)propoxy]carbonyl]oxy]phenyl]methyl]-, 3′-[2-cyanoethyl bis(1-methylethyl)phosphoramidite]

Guanosine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-5′-O-[tris[4-[[[2-(2-nitrophenyl)propoxy]carbonyl]oxy]phenyl]methyl]-

Cytidine, 2′-deoxy-N-(2-methyl-1-oxopropyl)-5′-O-[tris[4-[[[2-(2-nitrophenyl)propoxy]carbonyl]oxy]phenyl]methyl]-

Adenosine, 1-[2,3-bis-O-(1-oxobutyl)-β-D-ribofuranosyl]-, 2′,3′-dibutanoate 5′-[(1-oxopropoxy)methyl [[hydroxy[1-(2-nitrophenyl)ethoxy]phosphinyl]methyl]phosphonate], intramol. P′,5′′-ester

Adenosine, 1-[2,3-bis-O-(1-oxobutyl)-β-D-ribofuranosyl]-, 2′,3′-dibutanoate 5′-[ethyl [(ethoxyhydroxyphosphinyl)methyl]phosphonate], intramol. P′,5′′-ester

Adenosine, 2′-deoxy-N-(2,2-dimethyl-1-oxopropyl)-5′-O-[tris[4-[[[2-(2-nitrophenyl)propoxy]carbonyl]oxy]phenyl]methyl]-

Thymidine, 5′-O-[tris[4-[[[2-(2-nitrophenyl)propoxy]carbonyl]oxy]phenyl]methyl]-

Adenosine, 2′,3′-dibutanoate 5′-[ethyl [(ethoxyhydroxyphosphinyl)methyl]phosphonate], ester with methyl D-ribofuranoside 2,3-dibutanoate

4H-Imidazo[4,5-c]pyridin-4-imine, 1-[2,3-bis-O-(1-oxobutyl)-β-D-ribofuranosyl]-5-[5-O-[[[hydroxy[(1-oxopropoxy)methoxy]phosphinyl]methyl][1-(2-nitrophenyl)ethoxy]phosphinyl]-2,3-bis-O-(1-oxobutyl)-β-D-ribofuranosyl]-1,5-dihydro-, intramol. ester

4H-Imidazo[4,5-c]pyridin-4-imine, 1-[2,3-bis-O-(1-oxobutyl)-β-D-ribofuranosyl]-5-[5-O-[ethoxy[(ethoxyhydroxyphosphinyl)methyl]phosphinyl]-2,3-bis-O-(1-oxobutyl)-β-D-ribofuranosyl]-1,5-dihydro-, intramol. ester