Design, synthesis and biological evaluation of imidazo[2,1-b]thiazole and benzo[d]imidazo[2,1-b]thiazole derivatives as Mycobacterium tuberculosis pantothenate synthetase inhibitors
作者:Ganesh Samala、Parthiban Brindha Devi、Shalini Saxena、Nikhila Meda、Perumal Yogeeswari、Dharmarajan Sriram
DOI:10.1016/j.bmc.2016.01.059
日期:2016.3
In the present study, we have designed imidazo[2,1-b]thiazole and benzo[d]imidazo[2,1-b]thiazole derivatives from earlier reported imidazo[1,2-a]pyridine based Mycobacterium tuberculosis (MTB) pantothenate synthetase (PS) inhibitors. We synthesized thirty compounds and they were evaluated for MTB PS inhibition study, in vitro anti-TB activities against replicative and non-replicative MTB, in vivo activity
在本研究中,我们从较早报道的基于咪唑[1,2- a ]吡啶的结核分枝杆菌(MTB)中设计了咪唑并[2,1- b ]噻唑和苯并[ d ]咪唑并[2,1- b ]噻唑衍生物泛酸合成酶(PS)抑制剂。我们合成了30种化合物,并对其进行了MTB PS抑制研究,针对复制性和非复制性MTB的体外抗TB活性,使用分枝杆菌感染斑马鱼的体内活性以及对RAW 264.7细胞系的细胞毒性进行了评估。其中化合物2-甲基-N '-(4-苯氧基苯甲酰基)苯并[ d ]咪唑并[ 2,1- b ]噻唑-3-碳酰肼(5bc)表现为对MTB PS有活性的有效化合物,IC 50为0.53± 0.13μM,MIC为3.53μM,对营养缺乏的MTB降低2.1 log,在50μM时具有33%的细胞毒性。它还显示,斑马鱼中10.00 mg / kg的海螯虾的负载降低了1.5 log 。