Synthesis and biological evaluation of some new benzimidazoles derivatives 4'-{5-amino-2-[2-substituted-phenylamino)-phenyl-methyl]-benzimidazol-1 ylmethyl}-biphenyl-2-carboxylic acid: Nonpeptide angiotensin II receptor antagonists

Mukesh C Sharma, Dharm V. Kohli, Smita Sharma

Abstract


A new series of non peptide angiotensin (A-II) receptor antagonist has been prepared. This N-(biphenyl methyl) imidazoles e.g. Some new 4'-{5-amino-2-[2-substituted-phenylamino)-phenyl-methyl]-benzimidazol-1-ylmethyl}-biphenyl-2-carboxylic acid derivatives were synthesized by 2-( α -hydroxy benzyl) benzimidazole was converted to 2-(α-bromo benzyl) benzimidazole by reacting with HBr and Anhydrous ZnCl2 Schiff bases react with biphenyl carboxylic acid with different substituents amino group cyclocondensation with appropriate reagents. Differ from the previously reported and related compounds in that they produce a potent hypertensive effect. The compounds synthesized 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 of blood pressure.

Keywords: Benzimidazoles; Biphenyl Carboxylic acid; Angiotension-II.


Keywords


Benzimidazoles; Biphenyl Carboxylic acid; Angiotension-II.

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