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Abstract
This work has been carried out to investigate the utility of 2-bromo-1-(5-methyl-1- phenyl-1H-pyrazol-4-yl)ethanone, bis- and poly(aldehydes) for the synthesis of a variety of new heterocyclic compounds such as thiazoles, pyridines, thienopyridine, triazolothiadiazines, quinoxalines, benzothiazine, bis(thiazoles), bis(triazolothiadiazines), and their corresponding multiarmed derivatives