Structure-guided design of novel Trypanosoma brucei Methionyl-tRNA synthetase inhibitors
作者:Wenlin Huang、Zhongsheng Zhang、Ximena Barros-Álvarez、Cho Yeow Koh、Ranae M. Ranade、J. Robert Gillespie、Sharon A. Creason、Sayaka Shibata、Christophe L.M.J. Verlinde、Wim G.J. Hol、Frederick S. Buckner、Erkang Fan
DOI:10.1016/j.ejmech.2016.10.024
日期:2016.11
A screening hit 1 against Trypanosoma brucei methionyl-tRNA synthetase was optimized using a structure-guided approach. The optimization led to the identification of two novel series of potent inhibitors, the cyclic linker and linear linker series. Compounds of both series were potent in a T. brucei growth inhibition assay while showing low toxicity to mammalian cells. The best compound of each series
使用结构指导的方法优化了针对布鲁氏锥虫甲硫氨酰-tRNA合成酶的筛选命中1。优化导致鉴定了两个新颖的有效抑制剂系列,即环状接头和线性接头系列。这两个系列的化合物在布鲁氏杆菌生长抑制试验中均有效,同时对哺乳动物细胞显示出低毒性。每个系列中最好的化合物16和31分别表现出39和22 nM的EC 50。在小鼠口服给药后,化合物16和31也表现出有希望的PK特性。此外,化合物31IP注射后60分钟时的大脑/血浆比例为0.27,具有中等良好的脑通透性。这项研究提供了新的先导化合物,用于实现人类非洲锥虫病(HAT)的新疗法。