5'-Chloro-5'-deoxyinosine

2'-Deoxy-8-iodoguanosine

N-Benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-3'-O-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-2'-deoxy-5-methylcytidine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-3'-O-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-β-D-erythro-pentofuranosyl]-2'-deoxy-5-methylcytidine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-3'-O-[5-O-[bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-α-D-erythro-pentofuranosyl]-2'-deoxy-5-methylcytidine

2'-Deoxy-3'-O-(2-deoxy-β-D-erythro-pentofuranosyl)-5-methylcytidine

N-Benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-3'-deoxy-2'-O-[(1,1-dimethylethyl)dimethylsilyl]-3'-fluoroadenosine

5'-[[[2-(2-Aminophenyl)ethenyl]sulfonyl]amino]-2',5'-dideoxyadenosine

5'-[[[(2-Aminobenzoyl)amino]sulfonyl]amino]-2',5'-dideoxyadenosine

2-Amino-4'-C-azido-2',5'-dideoxy-5'-iodoadenosine

2-Amino-2',5'-dideoxy-5'-iodoadenosine

4'-C-Fluoroguanosine

3'-Deoxy-3',3'-difluoroguanosine

Decanoic acid, 10-[(1-β-D-arabinofuranosyl-1,2-dihydro-2-thioxo-4-pyrimidinyl)amino]-10-oxo-, methyl ester

(2'S)-5'-O-[5-[(Acetyloxy)methyl]-3,4-dihydro-8-methyl-2-oxido-2H-pyrido[4,3-e]-1,3,2-oxazaphosphorin-2-yl]-2'-bromo-2'-deoxy-2'-fluoroguanosine

(2'S)-5'-O-[5-[(Acetyloxy)methyl]-3,4-dihydro-8-methyl-2-oxido-2H-pyrido[4,3-e]-1,3,2-oxazaphosphorin-2-yl]-2-amino-2'-bromo-2'-deoxy-2'-fluoroadenosine

(2'S)-2-Amino-2'-bromo-2'-deoxy-5'-O-[(4R)-5,5-dimethyl-4-[[[3-(1-methylethoxy)-3-oxopropyl]amino]carbonyl]-2-oxido-1,3,2-dioxaphosphorinan-2-yl]-2'-fluoroadenosine

(2'S)-5'-O-[5-[(Acetyloxy)methyl]-3,4-dihydro-8-methyl-2-oxido-2H-pyrido[4,3-e]-1,3,2-oxazaphosphorin-2-yl]-2'-bromo-2'-deoxy-2'-fluoroadenosine

(2'S)-2'-Bromo-2'-deoxy-5'-O-[(4R)-5,5-dimethyl-4-[[[3-(1-methylethoxy)-3-oxopropyl]amino]carbonyl]-2-oxido-1,3,2-dioxaphosphorinan-2-yl]-2'-fluoroadenosine

(2'S)-2'-Bromo-2'-deoxy-5'-O-[(4R)-5,5-dimethyl-4-[[[3-(1-methylethoxy)-3-oxopropyl]amino]carbonyl]-2-oxido-1,3,2-dioxaphosphorinan-2-yl]-2'-fluoroguanosine