2′-Deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxyadenosine

1-[3-C-Cyano-2,5-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-xylofuranosyl]-3,5-dimethyl-2,4(1H,3H)-pyrimidinedione

Uridine, 3′-C-cyano-2′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3,5-dimethyl-

Uridine, 3′-deoxy-2′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3,5-dimethyl-3′-oxo-

Uridine, 2′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3,5-dimethyl-

1-[(5S,6R,8R,9R)-9-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-6-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-3-methyl-4-(methylimino)-2-oxo-1,7-dioxa-3-azaspiro[4.4]non-8-yl]-3,5-dimethyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-9-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-6-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-4-imino-3-methyl-2-oxo-1,7-dioxa-3-azaspiro[4.4]non-8-yl]-3,5-dimethyl-2,4(1H,3H)-pyrimidinedione

1-[(5S,6R,8R,9R)-4-Amino-9-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-6-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2-oxo-1,7-dioxa-3-azaspiro[4.4]non-3-en-8-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

9-[2,6-Dideoxy-4-C-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-3,5-O-(1-methylethylidene)-β-D-xylo-hexofuranosyl]-9H-purin-6-amine

9-[2,6-Dideoxy-4-C-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-3,5-O-(1-methylethylidene)-α-L-arabino-hexofuranosyl]-9H-purin-6-amine

Adenosine, 2′-deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-4′-C-(1-hydroxyethyl)-

Adenosine, N-benzoyl-5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-4′-C-(2-hydroxyethyl)-

N-[9-[(4aR,6R,7aS)-4a-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]hexahydro-2,2-diphenyl-2H-furo[2,3-e]-1,2-oxasilin-6-yl]-9H-purin-6-yl]benzamide

Adenosine, 5′-O-[bis(4-methoxyphenyl)phenylmethyl]-2′-deoxy-4′-C-(1-hydroxyethyl)-

Benzamide, N-[9-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-3-O-(ethenyldiphenylsilyl)-4-C-(phenylseleno)-α-L-threo-pentofuranosyl]-9H-purin-6-yl]-

N-[9-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-4-C-(phenylseleno)-α-L-threo-pentofuranosyl]-9H-purin-6-yl]benzamide

Benzamide, N-[9-[2-deoxy-4-C-(phenylseleno)-α-L-threo-pentofuranosyl]-9H-purin-6-yl]-

8,11-Epoxyazocino[1,2-e]purine-7,9(9H)-diol, 8-[(acetyloxy)methyl]-4-amino-6,7,10,11-tetrahydro-, 7,9-diacetate, (7S,8R,9S,11R)-

(7S,8R,9S,11R)-4-Amino-6,7,10,11-tetrahydro-8-(hydroxymethyl)-8,11-epoxyazocino[1,2-e]purine-7,9(9H)-diol

Benzamide, N-benzoyl-N-[9-[3-O-benzoyl-2-deoxy-5-O-(ethenyldiphenylsilyl)-4-C-(phenylseleno)-α-L-threo-pentofuranosyl]-9H-purin-6-yl]-