Identification of Novel 2,4,5-Trisubstituted Pyrimidines as Potent Dual Inhibitors of Plasmodial <i>Pf</i>GSK3/<i>Pf</i>PK6 with Activity against Blood Stage Parasites In Vitro
作者:Kareem A. Galal、Anna Truong、Frank Kwarcinski、Chandi de Silva、Krisha Avalani、Tammy M. Havener、Michael E. Chirgwin、Eric Merten、Han Wee Ong、Caleb Willis、Ahmad Abdelwaly、Mohamed A. Helal、Emily R. Derbyshire、Reena Zutshi、David H. Drewry
DOI:10.1021/acs.jmedchem.2c00996
日期:2022.10.13
PfGSK3 and PfPK6, with potent inhibitors further assessed for activity against blood and liver stage parasites. This culminated in the discovery of dual PfGSK3/PfPK6 inhibitors 23d (PfGSK3/PfPK6 IC50 = 172/11 nM) and 23e (PfGSK3/PfPK6 IC50 = 97/8 nM) with antiplasmodial activity (23dPf3D7 EC50 = 552 ± 37 nM and 23ePf3D7 EC50 = 1400 ± 13 nM). However, both compounds exhibited significant promiscuity when
必需的疟原虫激酶Pf GSK3 和Pf PK6 被认为是新的药物靶点,可对抗对传统抗疟治疗不断上升的耐药性。在此,我们报告了IKK16作为Pf GSK3/ Pf PK6 双重抑制剂的发现,对血液阶段Pf 3D7 寄生虫具有活性。为了建立Pf PK6 和Pf GSK3 的构效关系,合成了 52 种类似物并评估了对Pf GSK3 和Pf PK6 的抑制作用,并进一步评估了强效抑制剂对血液和肝脏阶段寄生虫的活性。这最终导致发现了双Pf GSK3/Pf PK6 抑制剂23d ( Pf GSK3/ Pf PK6 IC 50 = 172/11 nM) 和23e ( Pf GSK3/ Pf PK6 IC 50 = 97/8 nM) 具有抗疟原虫活性 ( 23d Pf 3D7 EC 50 = 552 ± 37 nM 和23e Pf 3D7 EC 50 = 1400 ± 13 nM)。然而,当在一组人类激酶