2′,3′,5′-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-8-(phenylsulfonyl)inosine

2′,3′,5′-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-8-fluoroinosine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-fluoro-6-O-methyl-N-(phenylsulfonyl)guanosine

2'-Deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-fluoro-6-O-methylguanosine

2',3',5'-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-8-fluoroadenosine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-(phenylsulfonyl)inosine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-fluoro-6-O-(phenylmethyl)-N-(phenylsulfonyl)guanosine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-fluoro-6-O-(phenylmethyl)guanosine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-fluoro-N-(phenylsulfonyl)adenosine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-fluoroinosine

2'-Deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-8-fluoroadenosine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-6-O-(phenylmethyl)-N-(phenylsulfonyl)guanosine

3,7-Dimethyl (4R,7S,7aS,10aR,10bS)-1,4,8,9,10,10a-hexahydro-2,9-dimethyl-6,8,10-trioxo-4-phenyl-1-(phenylmethyl)-6H-7,10b-epoxypyrrolo[3′,4′:3,4]pyrido[1,2-a]pyrimidine-3,7(7aH)-dicarboxylate

(1R,6R)-2-(2-Deoxy-β-D-erythro-pentofuranosyl)-8,8-diphenyl-7-oxa-2,4-diazabicyclo[4.2.0]octane-3,5-dione

1-[(4aS,6R,7aR)-2-(Chloromethyl)hexahydro-1-hydroxy-2H-furo[3,2-d][1,3]oxazin-6-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

7-Butylidene-3-(2-deoxy-β-D-erythro-pentofuranosyl)-3,7-dihydro-9H-imidazo[1,2-a]purin-9-one

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-3,4-dihydro-7-(1-hydroxyhexyl)-9H-imidazo[1,2-a]purin-9-one

7,7′-(2-Methylpropylidene)bis[3-(2-deoxy-β-D-erythro-pentofuranosyl)-3,4-dihydro-9H-imidazo[1,2-a]purin-9-one]

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-3,4-dihydro-7-(1-hydroxybutyl)-9H-imidazo[1,2-a]purin-9-one

3-(2-Deoxy-β-D-erythro-pentofuranosyl)-3,4-dihydro-7-[(1S)-1-hydroxybutyl]-9H-imidazo[1,2-a]purin-9-one