Department of Chemistry, Guru Nanak Dev University, Amritsar, India.
Center for Discovery and Innovation in Parasitic Diseases, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA, United States.
Front Cell Infect Microbiol. 2018 Oct 30;8:380. doi: 10.3389/fcimb.2018.00380. eCollection 2018.
Parasitic infections like amebiasis, trichomoniasis, and giardiasis are major health threats in tropical and subtropical regions of the world. Metronidazole (MTZ) is the current drug of choice for amebiasis, giardiasis, and trichomoniasis but it has several adverse effects and potential resistance is a concern. In order to develop alternative antimicrobials, a library of 1-1,2,3-triazole-tethered metronidazole-isatin conjugates was synthesized using Huisgen's azide-alkyne cycloaddition reaction and evaluated for their amebicidal, anti-trichomonal, and anti-giardial potential. Most of the synthesized conjugates exhibited activities against , and . While activities against and were comparable to that of the standard drug MTZ, better activities were observed against and . Conjugates and were found to be 2-3-folds more potent than MTZ against and 8-16-folds more potent than MTZ against . Further analysis of these compounds on fungi and bacteria did not show inhibitory activity, demonstrating their specific anti-protozoal properties.
寄生虫感染,如阿米巴病、滴虫病和贾第虫病,是世界热带和亚热带地区的主要健康威胁。甲硝唑(MTZ)是目前治疗阿米巴病、贾第虫病和滴虫病的首选药物,但它有几种不良反应,而且存在潜在的耐药性问题。为了开发替代的抗菌药物,我们使用 Huisgen 的叠氮-炔环加成反应合成了一个 1-1,2,3-三唑键合甲硝唑-靛红缀合物库,并评估了它们的杀阿米巴、抗滴虫和抗贾第鞭毛虫的潜力。大多数合成的缀合物对 和 具有活性。虽然对 和 的活性与标准药物 MTZ 相当,但对 和 的活性更好。化合物 和 对 和 的活性比 MTZ 强 2-3 倍,比 MTZ 强 8-16 倍。对这些化合物在真菌和细菌上的进一步分析显示没有抑制活性,表明它们具有特定的抗原生动物特性。