Discovery of novel bacterial FabH inhibitors (Pyrazol-Benzimidazole amide derivatives): Design, synthesis, bioassay, molecular docking and crystal structure determination
作者:Yan-Ting Wang、Tian-Qi Shi、Jie Fu、Hai-Liang Zhu
DOI:10.1016/j.ejmech.2019.03.026
日期:2019.6
target for the development of new antibacterial agents. We present here the discovery of a promising new series of Pyrazol-Benzimidazole amides with low toxicity and potent FabH inhibitory. Twenty-seven novel compounds have been synthesized, and all the compounds were characterized by 1H NMR, 13C NMR and MS. Afterwards they were evaluated for in-vitro antibacterial activities against E. coli, P. aeruginosa
FabH酶催化脂肪酸生物合成的第一步,这对于细菌的生存至关重要。因此,FabH已被确定为开发新型抗菌剂的有吸引力的靶标。我们在这里提出了一种有前景的,具有低毒性和强效FabH抑制作用的吡唑-苯并咪唑酰胺新系列的发现。合成了27种新型化合物,所有化合物均通过1 H NMR,13 C NMR和MS表征。之后,评估它们对大肠杆菌,铜绿假单胞菌,枯草芽孢杆菌和金黄色葡萄球菌以及大肠杆菌的体外抗菌活性。FabH抑制和细胞毒性测试。一些化合物被证明是低毒性的和有效的,特别是化合物31表现出最有潜力与针对所测试的细菌菌株0.49-0.98微克/毫升的MIC和IC一种新的药物50的1.22 μ中号针对大肠杆菌的FabH。八个类似物16,28,30,31,33,34,35和36与对野生型低范围MIC黄单胞菌表现出对FabH缺陷型突变株没有抑制作用,这坚定地证明了通过与FabH相互作用达到抗菌活性的化合物类