2',3'-Dideoxy-2',2'-difluoro-5-methyluridine

2'-Deoxy-3'-O-ethyl-5-methylcytidine

2'-O-[8-[[(2S)-2-Amino-3-azido-1-oxopropyl]amino]octyl]-N-benzoyladenosine

5-[(1E)-2-[1,1'-Biphenyl]-4-ylethenyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxyuridine

5-[(1E)-2-[1,1'-Biphenyl]-4-ylethenyl]-2'-deoxyuridine

5-[(1E)-3-[[2-[Bis(2-pyridinylmethyl)amino]ethyl]amino]-3-oxo-1-propen-1-yl]-2'-deoxyuridine

5-[2-[3-[(Aminocarbonyl)amino]phenyl]ethynyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-N-methylcytidine

2'-C-Methyluridine 5'-(tetrahydrogen triphosphate)

3'-O-(8-Aminooctyl)-N-benzoyladenosine

2'-O-(8-Aminooctyl)-N-benzoyladenosine

3'-O-[6-[[(2S)-2-Amino-2-methyl-1-oxo-8-nonyn-1-yl]amino]hexyl]-5-methyluridine

5-[(1E)-3-[[6-[Bis(2-pyridinylmethyl)amino]hexyl]amino]-3-oxo-1-propen-1-yl]-2'-deoxyuridine

5-[2-[3-(Acetylamino)phenyl]ethynyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-N-methylcytidine

5-[2-(3-Aminophenyl)ethynyl]-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-N-methylcytidine

N-Acetyl-3',5'-O-[bis(1,1-dimethylethyl)silylene]-2'-O-[(1,1-dimethylethyl)dimethylsilyl]-N-methylcytidine

3',5'-O-[Bis(1,1-dimethylethyl)silylene]-2'-O-[(1,1-dimethylethyl)dimethylsilyl]-N-methylcytidine

6-S-(7-Nitro-2,1,3-benzoxadiazol-4-yl)-6-thioguanosine

N-[(2-Amino-3-methylphenyl)methyl]-2-chloroadenosine

N-[(2-Chloro-5-methoxyphenyl)methyl]-2-methyladenosine

N-[(3-Chloro-2-methoxyphenyl)methyl]-2-methyladenosine