2,6-Diazido-9-(5-O-benzoyl-2,3-dideoxy-2,3-difluoro-α-D-arabinofuranosyl)-9H-purine

9-(2,3-Dideoxy-2,3-difluoro-β-D-arabinofuranosyl)-N6-(phenylmethyl)-9H-purine-2,6-diamine

9-(5-O-Benzoyl-2,3-dideoxy-2,3-difluoro-β-D-arabinofuranosyl)-2-chloro-N-(phenylmethyl)-9H-purin-6-amine

9-(2,3-Dideoxy-2,3-difluoro-β-D-arabinofuranosyl)-2,6-dimethoxy-9H-purine

2-Chloro-9-(2,3-dideoxy-2,3-difluoro-β-D-arabinofuranosyl)-6-methoxy-9H-purine

9-(5-O-Benzoyl-3-deoxy-3-fluoro-β-D-ribofuranosyl)-2,6-dichloro-9H-purine

9-(2-O-Acetyl-5-O-benzoyl-3-deoxy-3-fluoro-β-D-ribofuranosyl)-2,6-dichloro-9H-purine

Uridine, 2′-deoxy-5-[2-(1-naphthalenyl)ethyl]-, 3′,5′-diacetate

Uridine, 2′-deoxy-5-(1-naphthalenylethynyl)-, 3′,5′-diacetate

1-[(3aR,4R,6R,6aS)-6-[[Bis(4-methoxyphenyl)phenylmethoxy]methyl]hexahydro-3-[2-(2-hydroxyethoxy)ethoxy]-2-oxofuro[3,4-d]oxazol-4-yl]-2,4(1H,3H)-pyrimidinedione

1-[(3aR,4R,6R,6aS)-6-[[[(1,1-Dimethylethyl)diphenylsilyl]oxy]methyl]hexahydro-3-[(2-nitrophenyl)methoxy]-2-oxofuro[3,4-d]oxazol-4-yl]-2,4(1H,3H)-pyrimidinedione

1-[(3aR,4R,6R,6aS)-3-[2-[[6-Deoxy-2,3,4-tris-O-(phenylmethyl)-α-L-galactopyranosyl]oxy]ethoxy]-6-[[[(1,1-dimethylethyl)diphenylsilyl]oxy]methyl]hexahydro-2-oxofuro[3,4-d]oxazol-4-yl]-2,4(1H,3H)-pyrimidinedione

1-[(3aR,4R,6R,6aS)-6-[[[(1,1-Dimethylethyl)diphenylsilyl]oxy]methyl]hexahydro-2-oxo-3-[2-[2,2,2-trifluoro-1,1-bis(trifluoromethyl)ethoxy]ethoxy]furo[3,4-d]oxazol-4-yl]-2,4(1H,3H)-pyrimidinedione

Carbamic acid, [2-(2-hydroxyethoxy)ethoxy]-, 2-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-2,3,3a,9a-tetrahydro-6-oxo-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

Carbamic acid, [2-[[6-deoxy-2,3,4-tris-O-(phenylmethyl)-α-L-galactopyranosyl]oxy]ethoxy]-, (2R,3R,3aS,9aR)-2-[[[(1,1-dimethylethyl)diphenylsilyl]oxy]methyl]-2,3,3a,9a-tetrahydro-6-oxo-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester

1-[(3aR,4R,6R,6aS)-6-[[[(1,1-Dimethylethyl)diphenylsilyl]oxy]methyl]hexahydro-2-oxo-3-(2-phenylethyl)furo[3,4-d]oxazol-4-yl]-2,4(1H,3H)-pyrimidinedione

Carbamic acid, (2-phenylethyl)-, 2-[[[(1,1-dimethylethyl)diphenylsilyl]oxy]methyl]-2,3,3a,9a-tetrahydro-6-oxo-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl ester, [2R-(2α,3β,3aβ,9aβ)]-

(2R,3R,3aS,9aR)-2-[[[(1,1-Dimethylethyl)diphenylsilyl]oxy]methyl]-2,3,3a,9a-tetrahydro-6-oxo-6H-furo[2′,3′:4,5]oxazolo[3,2-a]pyrimidin-3-yl 1H-imidazole-1-carboxylate

4-[(Phenylmethyl)thio]-1-β-D-ribofuranosyl-1H-imidazo[4,5-d]pyridazine