Benzimidazoles are an important class of compounds with a wide spectrum of biological activity ranging from anti-hypertensive, anti-viral, anti-fungal, antitumor and anthelmintic activity. In addition, few N-substituted benzimidazole derivatives have shown to exhibit significant activity against several viruses, including HIV, herpes simplex (HSV-1), influenza, picorna, human cytomegalovirus (HCMV) and hepatitis C virus. The five membered heterocyclic moiety 1,3,4-oxadiazole also confers for various biological activity. Hence a series of benzimidazole derivatives fused with oxadiazole ring system have been synthesized, characterized by UV, IR and 1H NMR spectral data and evaluated for their in vitro and in vivo anti-inflammatory and antioxidant activity.
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