1-(3-Azido-2,3-dideoxy-α-D-erythro-pentofuranosyl)-1H-benzimidazole

Thymidylyl-(3'→5')-2',6-dideoxyguanosine

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]-

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

1-[2,3-Anhydro-5-O-(triphenylmethyl)-β-D-lyxofuranosyl]-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]-

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

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

1-[5-O-Benzoyl-2,3-dideoxy-3-(hydroxymethyl)-β-D-threo-pentofuranosyl]-5-chloro-2,4(1H,3H)-pyrimidinedione

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]

Adenosine 5'-(trihydrogen diphosphate), 2-ethynyl-2',3'-O-(1-methylethylidene)-, P'→5'-ester with 2-[2,3-O-(1-methylethylidene)-β-D-ribofuranosyl]-4-thiazolecarboxamide

Adenosine 5'-(trihydrogen diphosphate), 2-ethynyl-, P'→5'-ester with 2-β-D-ribofuranosyl-4-thiazolecarboxamide

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

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