4-amino-1-((2R,5S)-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one;zalcitabine;Dideoxycytidine;2',3'-DIDEOXYCYTIDINE;Cytidine, 2',3'-dideoxy-;4-AMINO-1-[(2R,5S)-5-(HYDROXYMETHYL)OXOLAN-2-YL]-1,2-DIHYDROPYRIMIDIN-2-ONE;3-[(5S,2R)-5-(hydroxymethyl)oxolan-2-yl]-6-amino-3-hydropyrimidin-2-one;1-(2,3-Dideoxy-beta-D-ribofuranosyl)cytosine;beta.-D-2',3'-Dideoxycytidine;Zalcitabine, 2'3'-Dideoxycytidine;4-Amino-1-(5-hydroxymethyl-tetrahydro-furan-2-yl)-1H-pyrimidin-2-one;4-Amino-1-[(2R,5S)-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2(1H)-one