9-[3-O-Acetyl-5-O-[2-(acetyloxy)-2-methyl-1-oxopropyl]-2-deoxy-4-C-(trifluoromethyl)-β-Derythro-pentofuranosyl]-6-chloro-9H-purine

6-Chloro-9-[2,3-di-O-acetyl-5-O-benzoyl-4-C-(trifluoromethyl)-α-L-lyxofuranosyl]-9H-purine

9-[3-O-Acetyl-5-O-[2-(acetyloxy)-2-methyl-1-oxopropyl]-2-bromo-2-deoxy-4-C-(trifluoromethyl)-β-D-ribofuranosyl]-6-chloro-9H-purine

6-Chloro-9-[2,3-di-O-acetyl-5-O-benzoyl-4-C-(trifluoromethyl)-β-D-ribofuranosyl]-9H-purine

2'-Deoxy-4'-C-ethenyl-2'-fluorocytidine

2'-Deoxy-4'-C-ethenyl-2'-fluoroguanosine

2'-Deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-4'-C-ethenyl-2',2'-difluorouridine

4'-C-Ethenylcytidine

2'-Deoxy-4'-C-ethenyl-2'-fluorocytidine'-(tetrahydrogentriphosphate)

4'-C-(2-Chloroethenyl)-2'-deoxy-2'-fluoro-N-[(4-methoxyphenyl)diphenylmethyl]-3',5'-bis-O-[(4-methoxyphenyl)diphenylmethyl]cytidine

2'-Deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-4'-C-ethenyl-2'-fluorouridine

2'-Deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-4'-C-ethenyl-2'-fluorocytidine

2'-Deoxy-2'-fluoro-4'-C-(1-methylethenyl)cytidine

2'-Deoxy-2'-fluoro-4'-C-1,2-propadien-1-ylcytidine

2'-Deoxy-2'-fluoro-4'-C-(3-methyl-1-buten-1-yl)uridine

2'-Deoxy-4'-C-ethenylguanosine

4'-C-1-Buten-1-yl-2'-deoxy-2'-fluorocytidine

2'-Deoxy-2'-fluoro-4'-C-(3-methyl-1-buten-1-yl)cytidine

2'-Deoxy-2'-fluoro-4'-C-(1-methylethenyl)cytidine'-(tetrahydrogentriphosphate)

2'-Deoxy-4'-C-ethenyl-2',2'-difluoroguanosine