Exploring biological efficacy of coumarin clubbed thiazolo[3,2–b][1,2,4]triazoles as efficient inhibitors of urease: A biochemical and in silico approach
作者:Imtiaz Khan、Ajmal Khan、Sobia Ahsan Halim、Aamer Saeed、Saifullah Mehsud、René Csuk、Ahmed Al-Harrasi、Aliya Ibrar
DOI:10.1016/j.ijbiomac.2019.09.105
日期:2020.1
associated with ureolytic enzyme (urease) remains a formidable challenge because of the lack of effective and safe drug therapies. In this regard, the development of potent inhibitors of urease could be considered as a promising remedy. Herein, we report a new library of structurally diverse hybrid heteroaromatics featuring coumarin and thiazolotriazole motifs in one combined unit. These new chemical scaffolds
由于缺乏有效和安全的药物治疗方法,与尿素分解酶(尿素酶)相关的几种病理学疾病的对抗仍然是一项艰巨的挑战。在这方面,开发有效的脲酶抑制剂可被视为有前途的疗法。在此,我们报告了一个新的结构多样的杂合杂芳族化合物库,其中一个组合单元具有香豆素和噻唑三唑基序。通过整合方法获得的这些新化学支架显示出以可变的效率抑制了来自杰克豆的酶脲酶。通过与噻唑核心相连的芳基环上几个官能团的变化进行的初步构效关系分析表明,化合物6o(IC50 = 4.35±0.18 µM)是最有效的抑制剂。6o的抑制强度是硫脲的5倍(标准; IC50 = 20.8±0.59 µM)。在分子对接分析中,通过各种结合相互作用将6o稳定在活性口袋中。除了在噻唑硫和活性位点中存在的镍原子之间观察到相互作用之外,在苯环的间位氨基上存在氨基部分还有助于与Cys322(2.11Å)的巯基进行氢键键合。此外,该氨基还与Ala366的羰基氧以2.7