5-[(1E)-3-[(6-Amino-1-oxohexyl)amino]-1-propen-1-yl]-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

1-[5-O-[Bis(4-methoxyphenyl)phenylmethyl]-3-O-[[bis(1-methylethyl)amino](2-cyanoethoxy)phosphino]-2-O-[(1,1-dimethylethyl)dimethylsilyl]-β-D-ribofuranosyl]-5,6-dichloro-1H-benzimidazole

5,6-Dichloro-1-[2-O-[(1,1-dimethylethyl)dimethylsilyl]-3-O-(hydroxyphosphinyl)-β-D-ribofuranosyl]-1H-benzimidazole

4'-C-(3-Azidopropyl)-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-methyluridine

4'-C-(3-Azidopropyl)-2'-O-methyluridine

4'-C-(3-Azidopropyl)-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-2'-O-methyluridine

3'-O-[(1S)-1-[4-(3-Amino-1-propyn-1-yl)-5-methoxy-2-nitrophenyl]-2,2-dimethylpropyl]-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

3'-O-[1-(2-Aminoethoxy)ethyl]-2'-deoxyuridine 5'-(tetrahydrogen triphosphate)

N-Acetyl-4'-C-(2-azidoethyl)-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-methylcytidine

N-Acetyl-4'-C-(2-azidoethyl)-2'-O-methylcytidine

N-Acetyl-4'-C-(2-azidoethyl)-5'-O-[(1,1-dimethylethyl)diphenylsilyl]-2'-O-methylcytidine

5-[(1E)-3-[[2-(Acetyloxy)ethyl]amino]-3-oxo-1-propen-1-yl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine

4'-C-(Aminomethyl)-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-methyluridine

5'-O-[(S)-Carboxy-2H-tetrazol-5-ylmethyl]-2-chloroadenosine

5'-O-[(R)-Carboxy-2H-tetrazol-5-ylmethyl]-2-chloroadenosine

5'-O-[(1R)-1-Carboxy-1-(2H-tetrazol-5-yl)-2-[4-(trifluoromethyl)phenyl]ethyl]-2-chloroadenosine

5'-O-[(1S)-1-Carboxy-2-phenyl-1-(2H-tetrazol-5-yl)ethyl]-2-chloroadenosine

5'-O-[(1R)-1-Carboxy-2-phenyl-1-(2H-tetrazol-5-yl)ethyl]-2-chloroadenosine

5'-O-[(1R)-1-Carboxy-2-(3-pyridinyl)-1-(2H-tetrazol-5-yl)ethyl]-2-chloroadenosine

5'-O-[1-Carboxy-2-phenyl-1-(2H-tetrazol-5-yl)ethyl]-2-chloroadenosine