1-(3-Amino-3,5,6-trideoxy-β-D-ribo-hexofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[5-Deoxy-2,3-bis-O-[(1,1-dimethylethyl)dimethylsilyl]-β-L-ribofuranosyl]-5-fluoro-2,4(1H,3H)-pyrimidinedione

1-(2-Deoxy-β-L-erythro-pentofuranosyl)-5-[[(2E)-4-phenyl-2-buten-1-yl]oxy]-2,4(1H,3H)-pyrimidinedione

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

Phenylalanine, N-phosphono-, 1-methyl ester, 5'-ester with 5-bromo-1-(2-deoxy-β-L-erythro-pentofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-[3,5-Bis-O-(phenylmethyl)-β-D-xylofuranosyl]-5,6-dichloro-1H-benzimidazole

1-[(4aS,6R,7aR)-Hexahydro-1-hydroxy-2-(4-nitrophenyl)-2H-furo[3,2-d][1,3]oxazin-6-yl]-5-methyl-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

1-[2,3-Dideoxy-2-fluoro-5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-β-D-threo-pentofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

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

2-Amino-1,9-dihydro-9-[(1R,5R,7R,8S)-8-hydroxy-5-(hydroxymethyl)-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-6H-purin-6-one

4-Amino-1-[(1R,5R,7R,8S)-8-hydroxy-5-(hydroxymethyl)-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-2(1H)-pyrimidinone

1-[(1R,5R,7R,8S)-8-Hydroxy-5-(hydroxymethyl)-6-oxa-2-azabicyclo[3.2.1]oct-7-yl]-2,4(1H,3H)-pyrimidinedione

1-[2,5-Bis-O-[(1,1-dimethylethyl)dimethylsilyl]-3-C-(2-hydroxyethyl)-β-D-xylofuranosyl]-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

4-Nitro-1-(5-S-2-propen-1-yl-5-thio-β-D-ribofuranosyl)-1H-benzimidazole

2-Ethyl-4-nitro-1-(5-S-2-propen-1-yl-5-thio-β-D-ribofuranosyl)-1H-benzimidazole

2-Ethyl-4-nitro-1-β-D-ribofuranosyl-1H-benzimidazole

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