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

6-S-[(4-Nitrophenyl)methyl]-N-propyl-6-thioguanosine

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

5-(2-Phenylethoxy)-1-β-L-ribofuranosyl-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

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

Adenosine, 2-ethynyl-, 5'-[hydrogen P-[[[2-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3-oxo-5-isobenzofuranyl)ethoxy]hydroxyphosphinyl]methyl]phosphonate]

Adenosine, 2-ethynyl-2',3'-O-(1-methylethylidene)-, 5'-[hydrogen P-[[[2-[1,3-dihydro-6-methoxy-7-methyl-3-oxo-4-(phenylmethoxy)-5-isobenzofuranyl]ethoxy]hydroxyphosphinyl]methyl]phosphonate]

1-[(2R,3R,4S,5R)-Tetrahydro-3,4-dihydroxy-5-(1-penten-3-yn-1-yl)-2-furanyl]-2,4(1H,3H)-pyrimidinedione

(1R,5R,7R,8S)-7-(6-Amino-9H-purin-9-yl)-8-hydroxy-6-oxa-2-azabicyclo[3.2.1]octane-5-methanol

3'-[[(2S)-2-Amino-3-carboxy-1-oxopropyl]amino]-3'-deoxy-N,N-dimethyladenosine

5-Fluoro-1-[(2R,4Z,5S)-tetrahydro-4-(hydroxyimino)-5-(hydroxymethyl)-2-furanyl]-2,4(1H,3H)-pyrimidinedione

1-[2,5-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3-C-[2-[[(4-methylphenyl)sulfonyl]oxy]ethyl]-β-D-xylofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-[3-O-(2-Carboxyacetyl)-β-D-ribofuranosyl]-4-methyl-1H-benzimidazole

1-[3-O-[1,3-Dioxo-3-(phenylmethoxy)propyl]-β-D-ribofuranosyl]-4-methyl-1H-benzimidazole

1-[3-O-[1,3-Dioxo-3-(phenylmethoxy)propyl]-5-O-[(4-methoxyphenyl)diphenylmethyl]-β-D-ribofuranosyl]-4-methyl-1H-benzimidazole

1-[2-O-(2-Carboxyacetyl)-β-D-ribofuranosyl]-4-methyl-1H-benzimidazole

1-[2-O-[1,3-Dioxo-3-(phenylmethoxy)propyl]-β-D-ribofuranosyl]-4-methyl-1H-benzimidazole

1-[3-O-(4-Carboxy-1,3-dioxobutyl)-β-D-ribofuranosyl]-4-methyl-1H-benzimidazole