Abstract
In this study we have synthesized some Benzimidazole derivatives (2-{6-Chloro-5-nitro-1-[2-(1H-tetrazol-5-yl) biphenyl-4-ylmethyl] 1H-benzoimidazol-2-yl}-phenyl)-(Substituted-benzylidene)-amine and screened for their antihypertensive activity. 4-chloro-o-Phenylenediamine was condensed with anthranilic acid in presence of Polyphosphoric acid and different aryl aldehydes compounds with biphenyl tetrazole ring. The presence of specific functional group were analysed by IR spectroscopy, The determination of structure for the synthesized compounds by NMR and Mass spectroscopy 13C NMR, 1H NMR, FAB Mass. All the synthesized compounds showed significant antihypertensive activity. Keywords: Benzimidazole; Antihypertensive; 4-chloro-o-Phenylenediamine; Biphenyl tetrazole; Blood pressure.
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