Facile synthesis of several new pyridine and fused pyridine derivatives with Anticipated biological activity

Abstract

The reactions of benzothiazol-2-N-acetylacetohydrazide 1 with a, (}-unsaturated aldehyde, ketone, ester or diketoester led to the formation of the titled ring systems. The same target was also achieved through the reactions of the benzothiazolylarylidenes 8 with several active methylene containing compounds.