5'-S-[2-[[6-[[(1,1-Dimethylethoxy)carbonyl]amino]-1-oxohexyl]amino]ethyl]-5'-thioadenosine

5'-[4-[(β-L-Arabinopyranosyloxy)methyl]-1H-1,2,3-triazol-1-yl]-5'-deoxyuridine

5'-[4-[[[2-(Acetylamino)-2-deoxy-β-D-glucopyranosyl]oxy]methyl]-1H-1,2,3-triazol-1-yl]-5'-deoxyuridine

2'-O-[Bis[2-(acetyloxy)ethoxy]methyl]-5'-deoxyuridine

4'-C-(Azidomethyl)-N-methyladenosine

(2'R)-2-Amino-N-cyclobutyl-2'-deoxy-2'-fluoro-2'-methyladenosine

(2'R)-2'-Deoxy-2'-fluoro-2'-methyl-6-O-methylguanosine

3',3''',3''''',3'''''''-[Tricyclo[3.3.1.13,7]decane-1,3,5,7-tetrayltetrakis(4,1-phenylene-1H-1,2,3-triazole-4,1-diyl)]tetrakis[N-benzoyl-2',3'-dideoxycytidine]

5-[(1E)-2-[5,7-Bis(1,1-dimethylethyl)-2-benzoxazolyl]ethenyl]-2'-deoxyuridine

5'-[[(2S)-3-(Carboxymethoxy)-2-[[(9H-fluoren-9-ylmethoxy)carbonyl]amino]-1-oxopropyl]amino]-5'-deoxyuridine

5-[2-[1-(Acetyloxy)-1,2,3,6-tetrahydro-2,2,6,6-tetramethyl-4-pyridinyl]ethynyl]-2'-deoxyuridine

2',3',5'-Tris-O-[(1,1-dimethylethyl)dimethylsilyl]-5-methylcytidine

6-Methoxyuridine

5-Methoxyuridine 5'-(trihydrogen diphosphate)

5-[2-Amino-6-[(4-chlorophenyl)thio]-3,5-dicyano-4-pyridinyl]-2'-deoxyuridine

5-[2-Amino-6-[(2-bromophenyl)thio]-3,5-dicyano-4-pyridinyl]-2'-deoxyuridine

5-[2-Amino-3,5-dicyano-6-[(4-methylphenyl)thio]-4-pyridinyl]-2'-deoxyuridine

5-[2-Amino-3,5-dicyano-6-(phenylthio)-4-pyridinyl]-2'-deoxyuridine

5-[2-Amino-3,5-dicyano-6-[(4-fluorophenyl)thio]-4-pyridinyl]-2'-deoxyuridine

3'-Azido-2-chloro-2',3'-dideoxy-N-methyladenosine