Inhibition of Mycobacterium tuberculosis InhA: Design, synthesis and evaluation of new di-triclosan derivatives
作者:Tom Armstrong、Malcolm Lamont、Alice Lanne、Luke J. Alderwick、Neil R. Thomas
DOI:10.1016/j.bmc.2020.115744
日期:2020.11
Multi-drug resistant tuberculosis (MDR-TB) represents a growing problem for global healthcare systems. In addition to 1.3 million deaths in 2018, the World Health Organisation reported 484,000 new cases of MDR-TB. Isoniazid is a key anti-TB drug that inhibits InhA, a crucial enzyme in the cell wall biosynthesis pathway and identical in Mycobacterium tuberculosis and M. bovis. Isoniazid is a pro-drug
耐多药结核病(MDR-TB)代表了全球医疗保健系统日益严重的问题。除了2018年有130万人死亡外,世界卫生组织还报告了48.4万例耐多药结核病新病例。异烟肼是抑制InhA的关键抗结核药物,InhA是细胞壁生物合成途径中的关键酶,与结核分枝杆菌和牛分枝杆菌相同。异烟肼是一种前药,需要被KatG酶激活,KatG中的突变会阻止激活并赋予INH抗性。InhA的“直接抑制剂”具有吸引力,因为它们可以绕开临床上观察到的主要耐药机制。合成了新的1,5-三唑库,该库旨在模拟与InhA唯一结合的两个三氯生分子的结构。这些化合物的抑制活性使用2(5-氯-2-(4-(5-((((4-(4-氯-2-羟基苯氧基)苄基)苄基)氧基)甲基)-1H- 1,2,3-三唑-1(基)苯氧基)苯酚)的IC 50为5.6 µM。还进行了全细胞评估,其中11(5-氯-2-(4-(5-((((4-(环丙基甲氧基)苄基)氧基)甲基)-1H-1