Novel synthesis of N-$\{$6-aryl-4-[(E)-2-furylmethylene]-1, 2, 3, 4-tetrahydro-3-oxopyridazin-1-ylcarbonyl$\}$-p-toluenesulfonamides and N-$\{$5-[(E)-1-aroylmethyl-2-(2-furyl) vinyl]-1, 3, 4-oxadiazol-2-yl$\}$-p-toluenesulfonamides

Hamad, Abdel-Sattar S; Hashem, Ahmed;