N-Acetyl-6-S-[(4-nitrophenyl)methyl]-6-thioguanosine

N,N-Bis(2-hydroxyethyl)-6-S-[(4-nitrophenyl)methyl]-6-thioguanosine

N-Benzoyl-6-S-[(4-nitrophenyl)methyl]-6-thioguanosine

5,6-Dichloro-2-[[(3-methoxyphenyl)methyl]thio]-1-β-D-ribofuranosyl-1H-benzimidazole

2,5,6-Trichloro-1-(5,6-dideoxy-β-D-ribo-hexofuranosyl)-1H-benzimidazole

2,5,6-Trichloro-1-[5-chloro-5-deoxy-2,3-bis-O-(1-methylethyl)-β-D-ribofuranosyl]-1H-benzimidazole

9-(2-Deoxy-4-C-ethynyl-β-D-erythro-pentofuranosyl)-9H-purine-2,8-diamine

5-(2-Phenylethoxy)-1-β-L-ribofuranosyl-2,4(1H,3H)-pyrimidinedione

3-[(5S,7R)-Hexahydro-5-(hydroxymethyl)-2-oxo-2H-furo[3,4-e]-1,3-oxazin-7-yl]-6-methyl-2,4(1H,3H)-pyrimidinedione

5-[2-[3,5-Bis(trifluoromethyl)phenyl]ethynyl]-1-(2-deoxy-β-L-erythro-pentofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-(2-Deoxy-3-S-2-pyridinyl-β-L-erythro-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

1-(2-Deoxy-β-L-erythro-pentofuranosyl)-5-(3-phenylpropoxy)-2,4(1H,3H)-pyrimidinedione

1-[(2R,4S)-6,6-Difluoro-4-(hydroxymethyl)-3-oxabicyclo[3.1.0]hex-2-yl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,3-Di-O-acetyl-5-deoxy-5-(2-oxo-3-oxazolidinyl)-β-L-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-(2-Deoxy-3-C-ethenyl-β-D-threo-pentofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

1-(2-Deoxy-2-fluoro-β-D-arabinofuranosyl)-5-(2,2-difluoroethyl)-2,4(1H,3H)-pyrimidinedione

5-Ethoxy-1-β-L-ribofuranosyl-2,4(1H,3H)-pyrimidinedione

3'-Deoxy-3'-[[(2S)-4-(1,1-dimethylethoxy)-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1,4-dioxobutyl]amino]-N,N-dimethyladenosine

1-(3-Amino-3-deoxy-β-D-arabinofuranosyl)-5-[(1E)-2-bromoethenyl]-2,4(1H,3H)-pyrimidinedione

5-Amino-1-[(2S,5S)-tetrahydro-5-(hydroxymethyl)-2-furanyl]-2,4(1H,3H)-pyrimidinedione