4'-C-Azido-2'-deoxy-2',2'-difluorocytidine'-(tetrahydrogentriphosphate)

7-(4-C-Azido-2-deoxy-2-fluoro-β-D-arabinofuranosyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

N-(4'-C-Azido-P-phenyl-5'-uridylyl)-L-alanine-methylethylester

N-(4'-C-Azido-P(O)-phenyl-P-thio-5'-uridylyl)-Lalanine,2-dimethylpropylester

Cytidine,4'-C-azido-N-benzoyl-2'-deoxy-2'-fluoro-,3',5'-dibenzoate

N-[4'-C-Azido-P(O)-phenyl-P-thio-5'-uridylyl]alanine,2-dimethylpropylester

N-(4'-C-Azido-P-phenyl-5'-cytidylyl)-L-alanine-methylethylester

Cytidine,4'-C-azido-N-benzoyl-2'-deoxy-2',2'-difluoro-,3',5'-dibenzoate

4'-C-Azido-4-thiouridine

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

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

4'-C-Azido-2-thiouridine

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

1-[(4R,5R,7R,8R)-7-Azido-8-hydroxy-7-(hydroxymethyl)-6-oxa-1-thiaspiro[3.4]oct-5-yl]-2,4(1H,3H)-pyrimidinedione

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

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

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

9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1H-purin-6(9H)-one

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

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