1-(2,3-Dideoxy-2,3-difluoro-β-D-xylofuranosyl)-2,4(1H,3H)-pyrimidinedione

6-Amino-1-[(2R,5S)-3,3-difluorotetrahydro-5-(hydroxymethyl)-2-furanyl]-5-fluoro-2,4(1H,3H)-pyrimidinedione

6-Amino-5-fluoro-1-(5-O-phosphono-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

6-Azido-5-fluoro-1-(5-O-phosphono-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-β-D-Arabinofuranosyl-6-azido-5-fluoro-2,4(1H,3H)-pyrimidinedione

1-[(5R,6R,8R,9R)-9-(Acetyloxy)-4-amino-6-[(benzoyloxy)methyl]-2,2-dioxido-1,7-dioxa-2-thiaspiro[4.4]non-3-en-8-yl]-3,5-dimethyl-2,4(1H,3H)-pyrimidinedione

1-(5-O-Benzoyl-α-D-arabinofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[5-O-(1-oxopentyl)-α-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[5-O-(1-oxobutyl)-α-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[5-O-(1-oxopropyl)-α-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-(5-O-Acetyl-α-D-arabinofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[5-O-(1-oxopentyl)-β-D-xylofuranosyl]-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[5-O-(1-oxobutyl)-β-D-xylofuranosyl]-2,4(1H,3H)-pyrimidinedione

5-Methyl-1-[5-O-(1-oxopropyl)-β-D-xylofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-(5-O-Acetyl-β-D-xylofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[(2R,4S,5R)-4-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-5-ethynyltetrahydro-2-furanyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

2'-O-Dephosphinico-5'-O-[dimethyl(1,1,2-trimethylpropyl)silyl]-2',3'-O-(1-methylethylidene)uridylylmethylene-(6→5')-2',3'-O-(1-methylethylidene)-5'-thioadenosine

1-[2,3-O-[[2-[(2R,3S,5R)-5-(3,4-Dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)tetrahydro-3-hydroxy-2-furanyl]ethyl]borylene]-α-D-ribofuranosyl]-2,4(1H,3H)-pyrimidinedione

2'-O-Dephosphinico-2',3'-O-(1-methylethylidene)uridylylmethylene-(6→5')-8-[[(4-methoxyphenyl)diphenylmethoxy]methyl]-2',3'-O-(1-methylethylidene)-5'-thioadenosine

2'-O-Dephosphinico-5'-O-[dimethyl(1,1,2-trimethylpropyl)silyl]-2',3'-O-(1-methylethylidene)uridylylmethylene-(6→5')-8-[[(4-methoxyphenyl)diphenylmethoxy]methyl]-2',3'-O-(1-methylethylidene)-5'-thioadenosine