3'-Deoxy-2',5'-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-N-(2,2-dimethyl-1-oxopropyl)-4'-C-methyladenosine

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

2',3'-O-(Methoxymethylene)-6-thioguanosine

1-β-D-Arabinofuranosyl-1H-benzimidazole

2-Methyl-1-β-D-ribofuranosyl-1H-benzimidazole

5,6-Dinitro-1-β-D-ribofuranosyl-1H-benzimidazole

5-(2-Amino-3-cyano-6-ethyl-5,6-dihydro-7-methyl-5-oxo-4H-pyrano[3,2-c]pyridin-4-yl)-2'-deoxyuridine

5-(2-Amino-3-cyano-5,6-dihydro-7-methyl-5-oxo-4H-pyrano[3,2-c]pyridin-4-yl)-2'-deoxyuridine

5-(2-Amino-3-cyano-5,6-dihydro-6,7-dimethyl-5-oxo-4H-pyrano[3,2-c]pyridin-4-yl)-2'-deoxyuridine

2,2'-Methylenebis[1-β-D-ribofuranosyl-1H-benzimidazole]

2,2'-Methylenebis[1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-benzimidazole]

5-(2-Amino-3-cyano-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-4-yl)-2'-deoxyuridine

5-[(1E)-2-Bromoethenyl]-3'-[4-(4-chlorophenyl)-1H-1,2,3-triazol-1-yl]-2',3'-dideoxyuridine

2'-[4-[[(3β)-Cholest-5-en-3-yloxy]methyl]-1H-1,2,3-triazol-1-yl]-2'-deoxyuridine

2'-(4-Decyl-1H-1,2,3-triazol-1-yl)-2'-deoxyuridine

7-Methyl-1-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)-1H-benzimidazole

N-Benzoyl-5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-3'-thioadenosine

2'-[4-[13-[(3β)-Cholest-5-en-3-yloxy]-2,5,8,11-tetraoxatridec-1-yl]-1H-1,2,3-triazol-1-yl]-2'-deoxyuridine

5'-[[3-[[2-Amino-3-(3-hydroxyphenyl)-1-oxopropyl]methylamino]-2-[[2-[[[[1-carboxy-2-(3-hydroxyphenyl)ethyl]amino]carbonyl]amino]-4-(methylsulfinyl)-1-oxobutyl]amino]-1-oxobutyl]amino]-4',5'-didehydro-3',5'-dideoxyuridine

5'-[[(3S,4R,5S)-3,4-Bis(methoxycarbonyl)-5-(2-methoxyphenyl)-2-methyl-D-prolyl-L-prolyl]amino]-5'-deoxyuridine