Uridine,4'-C-azido-2'-deoxy-,3',5'-diacetate

1-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-4-(methoxyamino)-2(1H)-pyrimidinone

1-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-4-(1-pyrrolidinyl)-2(1H)-pyrimidinone

1-[4-C-Azido-2-deoxy-3-O-[(1,1-dimethylethyl)dimethylsilyl]-2-methyl-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-4-[(3-hydroxypropyl)amino]-2(1H)-pyrimidinone

4-Amino-1-[4-C-azido-2-deoxy-2-methyl-3-O-(2-methyl-1-oxopropyl)-β-D-arabinofuranosyl]-2(1H)-pyrimidinone

1-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-4-(cyclopentylamino)-2(1H)-pyrimidinone

1-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-4-(ethoxyamino)-2(1H)-pyrimidinone

4'-C-Azido-4-O-(2,6-dimethylphenyl)-2-thiouridine

9-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-9H-purin-6-amine

4'-C-Azidoguanosine

4'-C-Azido-2'-deoxy-2'-fluoroguanosine

1-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-4-[(3-pyridinylmethyl)amino]-2(1H)-pyrimidinone

1-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-4-[[2-(4-hydroxyphenyl)ethyl]amino]-2(1H)-pyrimidinone

1-[4-C-Azido-2-deoxy-2-methyl-3,5-bis-O-(2-methyl-1-oxopropyl)-β-D-arabinofuranosyl]-2,4(1H,3H)-pyrimidinedione

1-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-4-[(2-furanylmethyl)amino]-2(1H)-pyrimidinone

1,5-DimethylN-[1-(4-C-azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-1,2-dihydro-2-oxo-4-pyrimidinyl]-L-glutamate

Uridine,4'-C-azido-3'-deoxy-3'-fluoro-,5'-(3-chlorobenzoate)

1-(4-C-Azido-2,3,5-tri-O-benzoyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione

1-(4-C-Azido-3,5-di-O-benzoyl-2-deoxy-2-methyl-β-D-arabinofuranosyl)-2,4(1H,3H)-pyrimidinedione