Synthesis and Biological Evaluation of Potent Antihypertensive Activity: 2-[(Substituted-phenyl amino)-phenyl-methyl]-1-[2'-(1H-tetrazol-5-yl) biphenyl-3-ylmethyl]-1H-benzoimidazol-5-ylamine Derivatives

M. C. Sharma, D. V. Kohli, Smita Sharma

Abstract


Some new 2-[(Substituted-phenyl amino)-phenyl-methyl]-1-[2'-(1H-tetrazol-5-yl) biphenyl-3-ylmethyl]-1H-benzoimidazol-5-ylamine Derivatives were synthesised by 2-( α -hydroxy benzyl) benzimidazole was converted to 2-(α-bromo benzyl) benzimidazole by reacting with Con.Nitric acid, sulphuric acid HBr and Anhydrous ZnCl2 Schiff bases react with ortho position attach biphenyl tetrazole with different substituents amino group cyclocondensation with appropriate reagents. Different from the previously reported and related compounds in that they produce a potent hypertensive effect the compounds synthesised were identified by 1H NMR, 13C NMR, FAB Mass and FT-IR spectroscopic techniques. All compounds studied in this work were screened for their antihypertensive activity by tail cuff method and direct method measurement.

Keyword: Benzimidazoles, Biphenyl tetrazole, Angiotension-II, antihypertensive agents


Keywords


Benzimidazoles, Biphenyl tetrazole, Angiotension-II, antihypertensive agents

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