2'-Deoxy-3-(2-hexyl-1-oxooctyl)-5-iodouridine

2'-Deoxy-3-(2,2-dimethyl-1-oxobutyl)-2',2'-difluorocytidine

2'-Deoxy-3-(2,2-dimethyl-1-oxobutyl)-5-iodouridine

2'-Deoxy-3-(2,2-dimethyl-1-oxobutyl)-5-fluorouridine

2'-Deoxy-3-(2,2-dimethyl-1-oxopropyl)-2',2'-difluorocytidine

2'-Deoxy-3-(2,2-dimethyl-1-oxopropyl)-5-iodouridine

2'-Deoxy-3-(2,2-dimethyl-1-oxopropyl)-5-fluorouridine

2'-Deoxy-3-(2-ethyl-1-oxobutyl)-2',2'-difluorocytidine

2'-Deoxy-3-(2-ethyl-1-oxobutyl)-5-iodouridine

2'-Deoxy-3-(2-ethyl-1-oxobutyl)-5-fluorouridine

3-Ethenyluridine

N-[2-(2-Benzothiazolylthio)propyl]-2-fluoroadenosine

N-[[2-[[[1-(Acetyloxy)-2-methylpropoxy]carbonyl]methylamino]ethoxy]carbonyl]-2'-deoxy-2',2'-difluorocytidine

2'-Deoxy-N-[10-(2,6-dimethylphenyl)-5,8-dimethyl-1,6,10-trioxo-2,7,9-trioxa-5-azadec-1-yl]-2',2'-difluorocytidine

1-[6-Amino-2-[[2-[4-[3-[[2-(4-hydroxyphenyl)ethyl]amino]-3-oxopropyl]phenyl]ethyl]amino]-9H-purin-9-yl]-1-deoxy-N-ethyl-β-D-ribofuranuronamide

1-[6-Amino-2-[3-[1-[[[3-(trifluoromethyl)phenyl]amino]carbonyl]-4-piperidinyl]-1-propyn-1-yl]-9H-purin-9-yl]-N-cyclopropyl-1-deoxy-β-D-ribofuranuronamide

5'-O-Methylinosine

2'-Deoxy-N-(8,11-dimethyl-1,6,10-trioxo-2,7,9-trioxa-5-azadodec-1-yl)-2',2'-difluorocytidine

2'-Deoxy-N-[10-(2,6-dimethylphenyl)-5-methyl-8-(1-methylethyl)-1,6,10-trioxo-2,7,9-trioxa-5-azadec-1-yl]-2',2'-difluorocytidine

N-[[2-[[[1-(Acetyloxy)ethoxy]carbonyl]methylamino]ethoxy]carbonyl]-2'-deoxy-2',2'-difluorocytidine