“…E-mail: m_monajjemi@yahoo.com antiulcerative, anti-hypertensive, antiviral, antifungal, antitumor and antihistaminic agents, and antihelminthic agents in veterinary medicine (Spasov et al, 1999). Benzimidazole derivatives have found the appreciation in diverse therapeutic areas including antimicrobial activity Wu et al, 2003;Mollaamin et al, 2008;Ozden et al, 2005;Sztanke et al, 2006), the activity against several viruses such as HIV (Porcari et al ., 1998;Samia et al, 2006), antiallergic (Kilcig and Altanlar, 2006;Nakano et al, 1999), antioxidant, antihistaminic (Vijayakumar and Jafar Ahamed, 2010), antitubercular (Yadav and Srivastava, 2011;Kuchkguzel et al, 2001), antiasthmatic (Souness et al, 2000), antidiabetic (Senten et al, 2003;Black et al, 2005), anticancer (Pal et al, 2011;Sun et al, 2011;Kruse et al,1989;Islam et al,1991;Ramla et al,2007), antitumor (Denny et al, 1990 ;Tatsuta et al, 2005), antiulcer (Jung et al, 1993;Hazelton et al, 1995), antihelmentic (Karen, 2006), HIV-1 reverse transcriptase inhibitors (Gardiner et al, 2003), anticoagulant (Young et al, 2006), anti inflammatory (Fox et al, 2009), antibacterial (Rosowsky et al, 1997;Andrzejewska et al, 2004) , the series of biologically active benzimidazoles (AJafar et al,2009). Furthermore, these heterocycles are considered to be privileged structures by medicinal chemists.…”