1-[5-O-(Ethoxyhydroxyphosphinyl)-β-D-arabinofuranosyl]-5-(1-propyn-1-yl)-2,4(1H,3H)-pyrimidinedione

1-[5-O-[Hydroxy(2,2,2-trichloroethoxy)phosphinyl]-β-D-arabinofuranosyl]-5-(1-propyn-1-yl)-2,4(1H,3H)-pyrimidinedione

5,6-Dichloro-1-(2-deoxy-β-D-erythro-pentofuranosyl)-2-methyl-1H-benzimidazole

5,6-Dichloro-1-(2-deoxy-β-D-erythro-pentofuranosyl)-2-(1-methylethyl)-1H-benzimidazole

1-(3-Azido-3-deoxy-β-D-ribofuranosyl)-1H-benzimidazole

1-(2-Deoxy-β-D-erythro-pentofuranosyl)-5,6-difluoro-1H-benzimidazole

Uridine, 2'-deoxy-3',5'-bis-O-(1,3-dimethyl-2-sulfido-1,3,2-diazaphospholidin-2-yl)-5-fluoro-

1-(3-Deoxy-3-ethynyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-(3-Deoxy-3-ethenyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-[3-Deoxy-3-ethenyl-5-O-(triphenylmethyl)-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

6-[[(4-Nitrophenyl)methyl]thio]-2-β-D-ribofuranosyl-1,2,4-triazine-3,5(2H,4H)-dione

1-(3-Deoxy-3-ethyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

2,4(1H,3H)-Pyrimidinedione, 1-[2-C-(nitromethyl)-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-arabinofuranosyl]-

1-[2-C-(Nitromethyl)-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

2,4(1H,3H)-Pyrimidinedione, 5-bromo-1-[2-C-(nitromethyl)-3,5-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]-β-D-arabinofuranosyl]-

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]

2'-Deoxy-5'-S-phenyl-5'-thioguanosine

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

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