3'-Deoxy-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-2'-S-phenyl-2'-C-(phenylthio)-2'-thiouridine

3'-Deoxy-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyl-2'-S-phenyl-2'-C-(phenylthio)-2'-thiouridine

N-Benzoyl-3'-O-benzoyl-P-[2-(4-nitrophenyl)ethyl]adenylyl-(2'→5')-2',3'-anhydro-N-benzoyladenosine

3'-O-Benzoyl-P-[2-(4-nitrophenyl)ethyl]-N-(phenylmethyl)adenylyl-(2'→5')-2',3'-anhydro-N-benzoyladenosine

1'-[3-(Aminocarbonyl)-1H-1,2,4-triazol-1-yl]-3'-O-benzoyl-1'-de(6-amino-9H-purin-9-yl)-P-[2-(4-nitrophenyl)ethyl]adenylyl-(2'→5')-2',3'-anhydro-N-benzoyladenosine

N-Benzoyl-3'-O-benzoyl-5'-O-[(4-methoxyphenyl)diphenylmethyl]-P-[2-(4-nitrophenyl)ethyl]adenylyl-(2'→5')-3'-O-benzoyl-P-[2-(4-nitrophenyl)ethyl]-N-(phenylmethyl)adenylyl-(2'→5')-2',3'-anhydro-N-benzoyladenosine

3'-O-Benzoyl-5'-O-[(4-methoxyphenyl)diphenylmethyl]-P-[2-(4-nitrophenyl)ethyl]-N-(phenylmethyl)adenylyl-(2'→5')-N-benzoyl-3'-O-benzoyl-P-[2-(4-nitrophenyl)ethyl]adenylyl-(2'→5')-2',3'-anhydro-N-benzoyladenosine

3'-O-Benzoyl-5'-O-[(4-methoxyphenyl)diphenylmethyl]-P-[2-(4-nitrophenyl)ethyl]-N-(phenylmethyl)adenylyl-(2'→5')-3'-O-benzoyl-P-[2-(4-nitrophenyl)ethyl]-N-(phenylmethyl)adenylyl-(2'→5')-2',3'-anhydro-N-benzoyladenosine

Guanylylmethylene-(3'→5')-5'-deoxyuridine

5-Formyl-2',3'-O-(1-methylethylidene)-2-thiouridine

Glycine, N-[2-[(4'-carboxyspiro[2H-benzimidazole-2,1'-cyclohexan]-5-yl)oxy]acetyl]-L-valyl-, 2-methyl ester, 3'-amide with 3'-amino-3'-deoxythymidine

3'-Deoxy-3'-[(spiro[2H-benzimidazole-2,1'-cyclohexan]-4'-ylcarbonyl)amino]thymidine

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

1H-Benzimidazole, 1-[3,5-O-(mercaptophosphinylidene)-β-D-ribofuranosyl]-, (S)-

2'-Deoxy-3'-thioguanosine

3',3'''-Dithiobis[2',3'-dideoxycytidine]

3',3'''-Dithiobis[2',3'-dideoxyuridine]

(2'R)-2'-Cyano-2'-deoxy-6-O-ethyl-2'-methylguanosine

(2'R)-2'-Cyano-2'-deoxy-2'-methyluridine

(2'R)-2'-Cyano-2'-deoxy-2'-methylcytidine