Novel Selective and Potent Inhibitors of Malaria Parasite Dihydroorotate Dehydrogenase: Discovery and Optimization of Dihydrothiophenone Derivatives
作者:Minghao Xu、Junsheng Zhu、Yanyan Diao、Hongchang Zhou、Xiaoli Ren、Deheng Sun、Jin Huang、Dongmei Han、Zhenjiang Zhao、Lili Zhu、Yufang Xu、Honglin Li
DOI:10.1021/jm400938g
日期:2013.10.24
lack of effective antimalarial vaccines into consideration, it is of significant importance to develop novel antimalarial agents for the treatment of malaria. Herein, we elucidated the discovery and structure–activity relationships of a series of dihydrothiophenone derivatives as novel specific inhibitors of Plasmodium falciparum dihydroorotate dehydrogenase (PfDHODH). The most promising compound, 50,
考虑到耐药性的出现和有效抗疟疾疫苗的缺乏,开发用于治疗疟疾的新型抗疟疾剂具有重要意义。在这里,我们阐明了一系列作为恶性疟原虫二氢乳清酸脱氢酶(Pf DHODH)的新型特异性抑制剂的二氢噻吩酮衍生物的发现及其与构效关系。最有前途的化合物50在体外选择性抑制Pf DHODH(IC 50 = 6 nM,相对于h DHODH具有1.4万倍以上的物种选择性)和体外寄生虫生长(IC 50分别针对3D7和Dd2细胞分别为15和18 nM)。此外,由体内药代动力学研究确定化合物50的口服生物利用度为40%。这些结果进一步表明,Pf DHODH是抗疟疾化学疗法的有效靶标,这项工作中报道的新型支架可能会导致发现新的抗疟疾药物。