“…The b-lactam heterocycles are considered as an important contribution of science to humanity, since they have been constituents of living organisms, natural products, drugs, and many more substances useful to mankind and society in all walks of life (Brown, 1989;Isaacs, 1976;Singh, 2003). Azetidin-2-ones, commonly referred as b-lactams, represent a unique ring system, with interesting chemistry and great biological potential (Arya et al, 2014). Besides its wellknown antibiotic activity, this ring system exhibits a wide range of activities, attracting the attention of researchers (Chimento et al, 2013;Jaishree et al, 2012;Bhati and Kumar, 2008;Halve et al, 2007).…”