“…This is due, in part, to the broad spectrum of their biological properties. Some of these activities include antimicrobial [5,6], anti-inflammatory [7,8], antifungal [9], anticancer [10], antidiabetic [11], anticonvulsant [12], analgesic [13], antibacterial [14], protein tyrosine kinase inhibitors [15], EGFR inhibitors [16], PDGFR phosphorylation inhibitors [17], CNS depressants [18], antitumor activity [19] and AMPA receptor-antagonistic properties [20,21]. Furthermore, the heterocyclic core constitutes more than 40 alkaloids [22] isolated from natural products, and some show interesting biological profiles such as antimalarial [23] and diuretic [24] properties.…”