Evaluation of S-substituted-2-mercaptobenzimidazole analogs for urease inhibitory and DPPH radical scavenging potential: synthesis, bioactivity, and molecular docking study
作者:Amber Ata、Khalid Mohammed Khan、Mehreen Lateef、Uzma Salar、Ayaz Anwar、Abdul Wadood、Ashfaq Ur Rehman、Shehryar Hameed、Fatima Zafar、Muhammad Taha、Shahnaz Perveen
DOI:10.1007/s13738-022-02653-1
日期:2023.1
S-substituted-2-mercaptobenzimidazole derivatives 1–34 were synthesized by reacting 2-mercaptobenzimidazole with a variety of substituted benzyl bromide and characterized with the help of various spectroscopic techniques. All synthetic compounds were evaluated for urease inhibitory and DPPH radical scavenging activities. Compounds showed significant to moderate urease inhibitory activity in the range of IC50 = 16
通过将 2-巯基苯并咪唑与各种取代的苄基溴反应合成了几种S-取代的 2-巯基苯并咪唑衍生物 1-34 ,并借助各种光谱技术对其进行了表征。评估了所有合成化合物的脲酶抑制和 DPPH 自由基清除活性。与标准硫脲(IC 50 = 22.4 ± 0.29 µM)相比,化合物在 IC 50 = 16.8 ± 0.76–74.3 ± 0.72 µM范围内显示出显着至中等的脲酶抑制活性。值得一提的是,所有分子都表现出显着的 DPPH 自由基清除潜力,IC 50与标准丁基化羟基苯甲醚 BHA (IC 50 = 44.2 ± 0.45 µM)相比,值为 15.5 ± 0.58 至 89.3 ± 0.12 µM 。通过分析不同取代对脲酶抑制潜力的影响,提出了构效关系 (SAR)。进行了分子对接研究以简化配体(合成分子)与脲酶活性口袋的结合相互作用。此外,还评估 了最有效的化合物1-4、14、18、20