2'-Deoxy-5-[2-(17-oxoestra-1,3,5(10)-trien-3-yl)ethynyl]uridine

2'-Deoxy-5-[2-(17-oxoestra-1,3,5(10)-trien-3-yl)ethynyl]-3',5'-O-[1,1,3,3-tetrakis(1-methylethyl)-1,3-disiloxanediyl]uridine

2'-Deoxy-5-[2-(4-pyrenyl)ethynyl]uridine

1-β-D-Arabinofuranosyl-5-[2-(3-perylenyl)ethynyl]-2,4(1H,3H)-pyrimidinedione

1-[2,5-Anhydro-4-C-[(phenylmethoxy)methyl]-3-O-(phenylmethyl)-β-D-gulofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,5-Anhydro-4-C-[(phenylmethoxy)methyl]-3-O-(phenylmethyl)-6-O-(2,2,6,6-tetramethyl-1-piperidinyl)-β-D-gulofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,5-Anhydro-6-(bromomercurio)-6-deoxy-4-C-[(phenylmethoxy)methyl]-3-O-(phenylmethyl)-β-D-gulofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,5-Anhydro-4-C-(hydroxymethyl)-β-D-gulofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,5-Anhydro-6-deoxy-6-[4-[(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)methyl]-1H-1,2,3-triazol-1-yl]-4-C-[(phenylmethoxy)methyl]-3-O-(phenylmethyl)-β-D-gulofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[6-Amino-2,5-anhydro-6-deoxy-4-C-[(phenylmethoxy)methyl]-3-O-(phenylmethyl)-β-D-gulofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,5-Anhydro-6-azido-6-deoxy-4-C-[(phenylmethoxy)methyl]-3-O-(phenylmethyl)-β-D-gulofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,5-Anhydro-6-O-(methylsulfonyl)-4-C-[(phenylmethoxy)methyl]-3-O-(phenylmethyl)-β-D-gulofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-(5-Azido-2,5-dideoxy-2-fluoro-β-D-arabinofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2,5-Anhydro-6-deoxy-6-[4-[(3,4-dihydro-5-methyl-2,4-dioxo-1(2H)-pyrimidinyl)methyl]-1H-1,2,3-triazol-1-yl]-4-C-(hydroxymethyl)-β-D-gulofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-(2,5-Dideoxy-2-fluoro-5-iodo-β-D-arabinofuranosyl)-5-methyl-2,4(1H,3H)-pyrimidinedione

1-(2,5-Dideoxy-2-fluoro-5-iodo-β-D-arabinofuranosyl)-5-iodo-2,4(1H,3H)-pyrimidinedione

1-[2-Deoxy-2-fluoro-5-O-[(4-methylphenyl)sulfonyl]-β-D-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione

1-[2-Deoxy-2-fluoro-5-O-[(4-methylphenyl)sulfonyl]-β-D-arabinofuranosyl]-5-iodo-2,4(1H,3H)-pyrimidinedione

2,4(1H,3H)-Pyrimidinedione, 1-(3-O-acetyl-5-S-acetyl-2-deoxy-2-fluoro-5-thio-β-D-arabinofuranosyl)-5-methyl-

1-[3-O-Acetyl-2-deoxy-2-fluoro-5-O-[(4-methylphenyl)sulfonyl]-β-D-arabinofuranosyl]-5-methyl-2,4(1H,3H)-pyrimidinedione