strains P. falciparum Dd2, IC50 1 µM (Ib) and 2.7 µM (Id)} and PfINDO IC50 1.1 µM (Ib) and 2.5 µM (Id)}. Drug exposure followed by drug withdrawal-based stage-specific kill kinetic studies showed that Ib is shizonticidal within 3 h while the earliest killing actions against Trophozoites and Rings were seen at >3 h and >6 h, respectively. Combination studies of the most potent leads viz. Ib and Id showed
Diarylidenecyclohexanone(
DAC)衍
生物(IA-I ,IIA-C和IIIa的-B )的合成,其特征在于并筛选它们在 体外对
氯喹的红内期抗疟原虫活性(
CQ)的敏感和抗性菌株的恶性疟原虫通过使用SYBR绿色我荧光测定。
DAC衍
生物的
SAR研究显示抗血浆活性的顺序为3-NO 2(Ib,IC 50 0.95 µM)> 3-
氯(Id,IC 50 3 µM)> 4-
氯(Ie,IC 50 8.5 µM)> 2
氯(Ic的,IC 5013 µM)。进一步的Ib和Id对耐
CQ菌株恶性疟原虫Dd2,IC 50 1 µM(Ib)和2.7 µM(Id)}和Pf INDO IC 50 1.1 µM(Ib)和2.5 µM(Id)表现出几乎相同的效力}。药物暴露后再进行基于药物戒断的阶段特异性杀灭动力学研究表明,Ib在3 h内呈杆状杀al,而对滋养体和Rings的最早杀伤作用分别在> 3 h和>