“…During the past two decades, we have found a growing interest in 1,4-benzothiazines. In fact, the 1,4-benzothiazines are the best known to possess biologically diverse activities (Goyal et al, 2013) such as antimicrobial, (Gautam et al, 2013) antifungal (Hans et al, 2008), antioxidant agents (Kumar et al, 2010), inhibitors of betaribosidases (Gao et al, 2005), potential vasodilators (Deshmukh et al, 2004) and as potent lipoxygenase inhibitors (Bakavoli et al, 2007). 1,4-Benzothiazines are the basis for novel dyes (Podsiadły et al, 2009) and behave as semiconductors (Hong et al, 2008).…”