4,5,6,7-Tetrabromo-1-[2-deoxy-3,5-bis-O-(4-methylbenzoyl)-β-L-erythro-pentofuranosyl]-1H-benzimidazole

2-Bromo-1-(2-deoxy-2-fluoro-β-D-arabinofuranosyl)-1H-benzimidazole

5-[5-(Bicyclo[2.2.1]hept-5-en-2-ylmethoxy)-1-pentyn-1-yl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine

5-[5-(Bicyclo[2.2.1]hept-5-en-2-ylmethoxy)-1-pentyn-1-yl]-2'-deoxyuridine

5-[2-[4-(1E)-1-Buten-1-ylphenyl]ethynyl]-2'-deoxyuridine

5'-O-[(4-Methoxyphenyl)diphenylmethyl]-N,N-dimethylguanosine

5-[3-[Bis[[1-(7-hydroxy-2-oxo-2H-1-benzopyran-3-yl)-1H-1,2,3-triazol-4-yl]methyl]amino]-1-propyn-1-yl]-2'-deoxyuridine

5-[2-[3-(1E)-1-Buten-1-ylphenyl]ethynyl]-2'-deoxyuridine

5-[2-[2-(1E)-1-Buten-1-ylphenyl]ethynyl]-2'-deoxyuridine

(2'R)-5'-O-[(2R,4S)-4-(3-Chlorophenyl)-2-oxido-1,3,2-dioxaphosphorinan-2-yl]-2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-fluoro-2'-methylcytidine

(2'R)-2'-Deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-fluoro-2'-methylcytidine

(2'R)-5'-O-[(2R,4S)-4-(3-Chlorophenyl)-2-oxido-1,3,2-dioxaphosphorinan-2-yl]-2'-deoxy-2'-fluoro-2'-methylcytidine

(2'R)-2'-Deoxy-3',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-fluoro-2'-methylcytidine

2-Fluoro-2'-O-methyladenosine

5'-O-[(1,1-Dimethylethyl)dimethylsilyl]-N-[(4-methoxyphenyl)diphenylmethyl]-3'-O-methyladenosine

5'-O-[(1,1-Dimethylethyl)dimethylsilyl]-3'-O-methyladenosine

2-Chloro-5'-S-[(3S)-1-[(1,1-dimethylethoxy)carbonyl]-5-(methoxycarbonyl)-3-pyrrolidinyl]-2',3'-O-(1-methylethylidene)-5'-thioadenosine

5'-S-[(1R,2S)-2-Aminocyclopentyl]-5'-thioadenosine

5'-S-[(3S)-1-[(1,1-Dimethylethoxy)carbonyl]-3-pyrrolidinyl]-2',3'-O-(1-methylethylidene)-5'-thioadenosine

5'-S-[(3S,5S)-5-(Aminocarbonyl)-3-pyrrolidinyl]-5'-thioadenosine