5-[6-(Benzoylthio)-1-hexyn-1-yl]-2'-deoxyuridine

5-[6-(Benzoylthio)-1-hexyn-1-yl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine

1-[2-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-erythro-pentofuranosyl]-1H-benzimidazole

1-[2-Deoxy-5-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-(phenoxythioxomethyl)-β-D-erythro-pentofuranosyl]-1H-benzimidazole

1-[2-Deoxy-3,5-bis-O-[(4-methylphenyl)sulfonyl]-β-D-erythro-pentofuranosyl]-1H-benzimidazole

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-5-[8-(7-[2,2'-bithiophen]-5-yl-3H-imidazo[4,5-b]pyridin-3-yl)-1-octyn-1-yl]-2'-deoxyuridine

5-[8-(7-[2,2'-Bithiophen]-5-yl-3H-imidazo[4,5-b]pyridin-3-yl)-1-octyn-1-yl]-2'-deoxyuridine

2'-Deoxy-2'-fluoro-6-O-methylguanosine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-3'-O-[(1,1-dimethylethyl)diphenylsilyl]-2'-O-(2-methoxyethyl)-5-methyluridine

1H-Benzimidazole, 1-[5-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]tetrahydro-2-furanyl]-, (2R-cis)-

3'-O-[Bis(4-methoxyphenyl)phenylmethyl]-5'-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-O-(2-methoxyethyl)-5-methyluridine

5'-O-[(1,1-Dimethylethyl)dimethylsilyl]-2'-O-(2-methoxyethyl)-5-methyluridine

5'-Deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5'-iodo-2'-O-(2-methoxyethyl)-3-[(4-methoxyphenyl)methyl]-5-methyluridine

3'-O-[(1,1-Dimethylethyl)dimethylsilyl]-2'-O-(2-methoxyethyl)-3-[(4-methoxyphenyl)methyl]-5-methyluridine

2-Hydrazinyl-2'-C-methyladenosine

3'-O-[(1,1-Dimethylethyl)dimethylsilyl]-2'-O-[(2S)-2-methoxypropyl]-5-methyluridine

2-Azido-2'-C-methyladenosine

3'-Azido-2',3'-dideoxy-5'-O-[(1,1-dimethylethyl)dimethylsilyl]-2',5-dimethyluridine

2'-[(Acetyloxy)methyl]-3'-azido-2',3'-dideoxy-5'-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyluridine

N-[2-(2-Benzothiazolylthio)butyl]-2-chloroadenosine