cytochrome bc1 complex. Novel 4-(arylalkyl)-thio, -oxy and sulfoxy-quinoline analogues were tested for their ability to inhibit the growth of MTB H37Rv and QcrB mutant strains, and the compounds mode of action was investigated. Members of the 4-subtituted thio- and sulfoxyquinoline series exhibited significant growth inhibitory activity in the high nanomolar range against wild-type MTB and induced depletion
基于特有的4-(苄
硫基)-
6-甲氧基-2-甲基喹啉支架的结构特征,合成了4-取代
喹啉库。基于
喹啉的
化学探针已被证明是有效的抗结核药物,能够抑制结核分枝杆菌(
MTB) 呼吸链的成分,包括细胞色素bc 1复合物的b亚基。测试了新型4-(芳烷基)-
硫基、-氧基和磺氧基-
喹啉类似物抑制
MTB H37Rv和QcrB突变株生长的能力,并研究了化合物的作用方式。 4-取代的
硫代和磺氧基
喹啉系列的成员在高纳摩尔范围内对野生型
MTB 表现出显着的生长抑制活性,并诱导细胞内
ATP 的消耗。这些探针在 QcrB T313I 突变株中也显示出效力降低,从而表明细胞色素bc 1氧化酶复合物作为分子靶点。有趣的是,与野生型菌株相比,新型 4-(quinolin-2-yl)oxy-quinoline 4 i对 QcrB T313I 菌株更具选择性.