5-[4-(3-Aminophenyl)-1,3-butadiyn-1-yl]-2'-deoxyuridine

2'-O-[2-(Aminooxy)ethyl]-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-5-methyluridine

5-[2-(4-Cyano-1-naphthalenyl)ethynyl]-2'-deoxyuridine

N-Benzoyl-5-bromocytidine

2'-Deoxyuridine 5'-(trihydrogen diphosphate) P'-[2-[(2-azidoacetyl)amino]-2-deoxy-α-D-galactopyranosyl] ester

5'-Deoxy-5'-[[3-[[[[4-(1,1-dimethylethyl)phenyl]amino]carbonyl]amino]propyl](1-methylethyl)amino]-N,N-dimethyladenosine

2-O-Ethyl-4'-C-fluorothymidine

2'-O-[2-[[Bis[[(2-cyanoethoxy)carbonyl]amino]methylene]amino]ethyl]-5'-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methyl-2-thiouridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-O-[2-[2-(dimethylamino)ethoxy]ethyl]-5-methyl-2-thiouridine

2'-O-[2-[2-(Dimethylamino)ethoxy]ethyl]-2-O-ethyl-5-methyluridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-5-methyl-2'-O-[2-(methylamino)-2-oxoethyl]-2-thiouridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-O-(2-methoxyethyl)-5-[[methyl(2,2,2-trifluoroacetyl)amino]methyl]-2-thiouridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-5-[2-(4-cyano-1-naphthalenyl)ethynyl]-2'-deoxyuridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-6-S-(2-cyanoethyl)-2'-deoxy-N-(2-phenoxyacetyl)-6-thioguanosine

6-S-(2-Cyanoethyl)-2'-deoxy-N-(2-phenoxyacetyl)-6-thioguanosine

(5S,6R)-5,6-Bis(acetyloxy)-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-2'-fluoro-5,6-dihydro-5-methyluridine

(5R,6S)-5,6-Bis(acetyloxy)-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-2'-fluoro-5,6-dihydro-5-methyluridine

(5S,6R)-5,6-Bis(acetyloxy)-2'-deoxy-2'-fluoro-5,6-dihydro-5-methyluridine

(5R,6S)-5,6-Bis(acetyloxy)-2'-deoxy-2'-fluoro-5,6-dihydro-5-methyluridine

5'-O-[Bis(4-methoxyphenyl)phenylmethyl]-2'-O-[2-[2-(dimethylamino)ethoxy]ethyl]-2-O-ethyl-5-methyluridine