In obtaining some new cytotoxic and chemopreventive agents with potent antiproliferative activity against cancer cells, a series of new β-isatin aldehyde-N, N'-thiocarbohydrazone, bis- β-isatin thiocarbohydrazones, bis-β-isatin carbohydrazones, N, 2-bis (thiophen-2- ylmethylidene) thiocarbohydrazone and N, 2-bis (thiophen-2-ylmethylidene) carbohydrazone derivatives was synthesized by microwave oriented reaction and ...