(1S,3R,5S)-3-(6-Amino-9H-purin-9-yl)-6,6-difluoro-2-oxabicyclo[3.1.0]hexane-1-methanol

9-[(3R)-1-[[[(1,1-Dimethylethyl)dimethylsilyl]oxy]methyl]-6,6-difluoro-2-oxabicyclo[3.1.0]hex-3-yl]-6-(2,5-dimethyl-1H-pyrrol-1-yl)-9H-purine

9-[2,3-Dideoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-iodo-β-D-threo-pentofuranosyl]-6-(2,5-dimethyl-1H-pyrrol-1-yl)-9H-purine

9-[2-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-6-(2,5-dimethyl-1H-pyrrol-1-yl)-9H-purine

9-[3,5-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2-O-[(methylthio)thioxomethyl]-β-D-ribofuranosyl]-6-(2,5-dimethyl-1H-pyrrol-1-yl)-9H-purine

4-Amino-1-[(1S,3R,5S)-6,6-difluoro-1-(hydroxymethyl)-2-oxabicyclo[3.1.0]hex-3-yl]-2(1H)-pyrimidinone

1-[(1S,3R,5S)-6,6-Difluoro-1-(hydroxymethyl)-2-oxabicyclo[3.1.0]hex-3-yl]-2,4(1H,3H)-pyrimidinedione

1-[(1S,3R,5S)-1-[(Benzoyloxy)methyl]-6,6-difluoro-2-oxabicyclo[3.1.0]hex-3-yl]-2,4(1H,3H)-pyrimidinedione

1-[(1S,3R,5S)-1-[(Benzoyloxy)methyl]-6,6-difluoro-2-oxabicyclo[3.1.0]hex-3-yl]-3-[(4-methoxyphenyl)methyl]-2,4(1H,3H)-pyrimidinedione

1-[(1S,3R,5S)-6,6-Difluoro-1-(hydroxymethyl)-2-oxabicyclo[3.1.0]hex-3-yl]-3-[(4-methoxyphenyl)methyl]-2,4(1H,3H)-pyrimidinedione

1-[(3ξ)-2,3-Dideoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-iodo-β-D-glycero-pentofuranosyl]-3-[(4-methoxyphenyl)methyl]-2,4(1H,3H)-pyrimidinedione

2′-Deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3-[(4-methoxyphenyl)methyl]uridine

3′-Deoxy-5′-O-[(1,1-dimethylethyl)dimethylsilyl]-3-[(4-methoxyphenyl)methyl]uridine

3′-Deoxy-2′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3-[(4-methoxyphenyl)methyl]uridine

2′-Deoxy-3′,5′-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3-[(4-methoxyphenyl)methyl]uridine

2′,5′-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3-[(4-methoxyphenyl)methyl]uridine

3′,5′-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3-[(4-methoxyphenyl)methyl]uridine

Uridylyl-(3′→5′)-guanylyl-(3′→5′)-uridylyl-(3′→5′)-guanylyl-(3′→5′)-cytidylyl-(3′→5′)-cytidine

Uridylyl-(3′→5′)-guanylyl-(3′→5′)-uridylyl-(3′→5′)-guanylyl-(3′→5′)-cytidylyl-(3′→5′)-uridine

5-(3-Amino-3-oxo-1-propen-1-yl)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyuridylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-thymidylyl-(3′→5′)-2′-deoxyguanosine