Structure–Activity Relationship Studies Reveal New Astemizole Analogues Active against <i>Plasmodium falciparum</i> In Vitro
作者:Dickson Mambwe、Malkeet Kumar、Richard Ferger、Dale Taylor、Mathew Njoroge、Dina Coertzen、Janette Reader、Mariëtte van der Watt、Lyn-Marie Birkholtz、Kelly Chibale
DOI:10.1021/acsmedchemlett.1c00328
日期:2021.8.12
In the context of drug repositioning and expanding the existing structure–activity relationship around astemizole (AST), a new series of analogues were designed, synthesized, and evaluated for their antiplasmodium activity. Among 46 analogues tested, compounds 21, 30, and 33 displayed high activities against asexual blood stage parasites (PfNF54 IC50 = 0.025–0.043 μM), whereas amide compound 46 additionally
在药物重新定位和扩大阿司咪唑 (AST) 周围现有构效关系的背景下,设计、合成了一系列新的类似物,并评估了它们的抗疟原虫活性。在测试的46 种类似物中,化合物 21、30 和 33显示出对无性血液期寄生虫的高活性(Pf NF54 IC 50 = 0.025–0.043 μM),而酰胺化合物46还显示出对晚期配子体(IV/V 期;Pf LG IC 50 = 0.6 ± 0.1 μM)和比 hERG 高 860 倍的选择性(46, SI = 43) 与 AST 相比。在中国仓鼠卵巢 (SI > 148) 细胞系中显示出高溶解度 (Sol > 100 μM) 和低细胞毒性的几种类似物也已被鉴定。