2′,3′-O-(1-Methylethylidene)-5′-O-[6-(tetrahydro-2H-pyran-2-yl)hexyl]adenosine

2′,3′-O-(1-Methylethylidene)-5′-O-[4-(tetrahydro-2H-pyran-2-yl)butyl]adenosine

2′,3′-O-(1-Methylethylidene)-5′-O-[5-(tetrahydro-2H-pyran-2-yl)pentyl]adenosine

2′,3′-O-(1-Methylethylidene)-5′-O-[3-(tetrahydro-2H-pyran-2-yl)propyl]adenosine

1-(6-Deoxy-α-L-lyxo-hex-5-enofuranosyl)-2,4(1H,3H)-pyrimidinedione

4-Amino-1-[(3S,5R,6R,7S)-1,1-difluoro-6,7-dihydroxy-4-oxaspiro[2.4]hept-5-yl]-2(1H)-pyrimidinone

Butanedioic acid, 1-[(1R,3R,4R,5S)-1-[[bis(4-methoxyphenyl)phenylmethoxy]methyl]-3-(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)-4-hydroxy-2-oxabicyclo[3.2.0]hept-5-yl] 4-(4-nitrophenyl) ester

Guanosine, 2′-deoxycytidylyl-(3′→5′)-2′-deoxy-5-iodocytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

Guanosine, 5-bromo-2′-deoxycytidylyl-(3′→5′)-2′-deoxycytidylyl-(3′→5′)-2′-deoxyguanylyl-(3′→5′)-2′-deoxy-

4-Amino-1-[(3S,5R,7S)-1,1-difluoro-7-hydroxy-4-oxaspiro[2.4]hept-5-yl]-2(1H)-pyrimidinone

(3S,5R,7S)-5-(6-Amino-9H-purin-9-yl)-1,1-difluoro-4-oxaspiro[2.4]heptan-7-ol

1-[(3S,5R,7S)-1,1-Difluoro-7-hydroxy-4-oxaspiro[2.4]hept-5-yl]-2,4(1H,3H)-pyrimidinedione

9-[(3S,5R,7S)-7-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-1,1-difluoro-4-oxaspiro[2.4]hept-5-yl]-9H-purin-6-amine

1-[(5R,7S)-7-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-1,1-difluoro-4-oxaspiro[2.4]hept-5-yl]-2,4(1H,3H)-pyrimidinedione

O-[(3S,5R,6R,7S)-5-(6-Amino-9H-purin-9-yl)-6-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-1,1-difluoro-4-oxaspiro[2.4]hept-7-yl] 1H-imidazole-1-carbothioate

O-[(3S,5R,6R,7S)-5-(6-Amino-9H-purin-9-yl)-7-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-1,1-difluoro-4-oxaspiro[2.4]hept-6-yl] 1H-imidazole-1-carbothioate

O-[(3S,5R,6R,7S)-5-(3,4-Dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-6-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-1,1-difluoro-4-oxaspiro[2.4]hept-7-yl] 1H-imidazole-1-carbothioate

O-[(3S,5R,7S)-5-(3,4-Dihydro-2,4-dioxo-1(2H)-pyrimidinyl)-7-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-1,1-difluoro-4-oxaspiro[2.4]hept-6-yl] 1H-imidazole-1-carbothioate

(3S,5R,6R,7S)-5-(6-Amino-9H-purin-9-yl)-6-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-1,1-difluoro-4-oxaspiro[2.4]heptan-7-ol

1-[(3S,5R,6R,7S)-6-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-1,1-difluoro-7-hydroxy-4-oxaspiro[2.4]hept-5-yl]-2,4(1H,3H)-pyrimidinedione