Design, synthesis and antitrypanosomal activity of heteroaryl-based 1,2,4-triazole and 1,3,4-oxadiazole derivatives
作者:Montaser Sh. Shaykoon、Adel A. Marzouk、Osama M. Soltan、Amira S. Wanas、Mohamed M. Radwan、Ahmed M. Gouda、Bahaa G.M. Youssif、Mohamed Abdel-Aziz
DOI:10.1016/j.bioorg.2020.103933
日期:2020.7
identified as potential/valid targets for most of the antitrypanosomal agents. The results of the docking study revealed high binding scores toward many of the selected enzymes. A good correlation was observed only between log (IC50) of antitrypanosomal activity of the new compounds and their calculated Ki values against TryR enzyme (R2 = 0.726). Compound 3b, the most active as antitrypanosomal agents exhibited
两个系列的新型1,2,4-三唑-3-基硫代乙酰胺3a-b和4a-b和5-吡嗪-2-基-3H- [1,3,4]恶二唑-2-硫酮9a-h被设计和合成。使用1 H NMR,13 C NMR和元素分析鉴定了制备的化合物。已经用α-二氟甲基鸟氨酸(DFMO)作为对照药物评估了合成的化合物3a,3b,4a,4b,9a,9b,9d-e和9f的针对布鲁氏锥虫的体外锥虫活性。结果表明,一般而言,3b是活性最高的化合物,而且比对照DFMO更有效。与DFMO相比,3b的效价比参考值高8倍,IC50为0.79μM,IC90为1.35μM(IC50 = 6.10μM,IC90为8.66μM)。所测试的化合物对L6细胞显示出中等的细胞毒性,选择性指数范围为12(9d)至102(3b)。对十种布鲁氏菌酶进行了对接研究,这些酶已被确定为大多数抗锥虫病药物的潜在/有效靶标。对接研究的结果表明,与许多所选酶的结合分数很高。仅