AIDS-132221 AIDS132221 N'-(5-Fluoro-1-(5-(hydroxymethyl)tetrahydro-2-furanyl)-2-oxo-1,2-dihydro-4-pyrimidinyl)-N,N-dimethylimidoformamide NSC625648 {N-[(Dimethylamino)methylene]-} 5-fluoro-2',3'-dideoxycytidine