Lead Optimization of 3-Carboxyl-4(1<i>H</i>)-Quinolones to Deliver Orally Bioavailable Antimalarials
作者:Yiqun Zhang、Julie A. Clark、Michele C. Connelly、Fangyi Zhu、Jaeki Min、W. Armand Guiguemde、Anupam Pradhan、Lalitha Iyer、Anna Furimsky、Jason Gow、Toufan Parman、Farah El Mazouni、Margaret A. Phillips、Dennis E. Kyle、Jon Mirsalis、R. Kiplin Guy
DOI:10.1021/jm201642z
日期:2012.5.10
Malaria is a protozoal parasitic disease that is widespread in tropical and subtropical regions of Africa, Asia, and the Americas and causes more than 800,000 deaths per year. The continuing emergence of multidrug-resistant Plasmodium falciparum drives the ongoing need for the development of new and effective antimalarial drugs. Our previous work has explored the preliminary structural optimization of 4(1H)-quinolone ester derivatives, a new series of antimalarials related to the endochins. Herein, we report the lead optimization of 4(1H)-quinolones with a focus on improving both antimalarial potency and bioavailability. These studies led to the development of orally efficacious antimalarials including quinolone analogue 20g, a promising candidate for further optimization.