“…Benzimidazole and its derivatives are reported to be physiologically and pharmacologically active and find applications in the treatment of several diseases like epilepsy, diabetes, antifertility. 10,11 It is an important pharmacophore and privileged structure in medicinal chemistry 12,13 encompassing a diverse range of biological activities including antibacterial, 14 antiinflammatory, analgesic, 15,16 antihistamine, 17 antiulcerative, 18 antioxidant, 19 antiproliferative, 20,21 antiallergic, 22,23 antitumor, 24,25 antikinase, 26,27 anticancer activities, 28-32 cytotoxicity, 33 and anti-HIV-1. 34,35 Owing to the importance of benzimidazole, now we wish to describe the SAR studies of regioisomers of benzimidazole and their in vitro screening results of antimicrobial and antitubercular activities.…”