Identification and initial optimization of inhibitors of Clostridium difficile (C. difficile) toxin B (TcdB)
作者:Jeffrey J. Letourneau、Ilana L. Stroke、David W. Hilbert、Laurie J. Sturzenbecker、Brett A. Marinelli、Jorge G. Quintero、Joan Sabalski、Linh Ma、David J. Diller、Philip D. Stein、Maria L. Webb
DOI:10.1016/j.bmcl.2018.01.005
日期:2018.2
The discovery, synthesis and preliminary structure-activity relationship (SAR) of a novel class of inhibitors of Clostridium difficile (C. difficile) toxin B (TcdB) is described. A high throughput screening (HTS) campaign resulted in the identification of moderately active screening hits 1–5 the most potent of which was compound 1 (IC50 = 0.77 µM). In silico docking of an early analog offered suggestions
一类新的抑制剂的发现,合成和初步结构-活性关系(SAR)艰难梭菌(艰难梭菌)毒素B(TcdB的)进行说明。一种高通量筛选(HTS)运动导致中等活性筛选命中的标识1 - 5,其最有效的是化合物1(IC 50 = 0.77微米)。在计算机对接中,早期的类似物为结构修饰提供了建议,从而导致设计和合成了高效的类似物13j(IC 50 = 1 nM)和13 l(IC 50 = 7 nM)作为进一步优化的线索。