Synthesis of 1,2,4-triazolo[1,5-a]pyrimidine derivatives: Antimicrobial activity, DNA Gyrase inhibition and molecular docking
作者:Rehab H. Abd El-Aleam、Riham F. George、Ghaneya S. Hassan、Hamdy M. Abdel-Rahman
DOI:10.1016/j.bioorg.2019.103411
日期:2020.1
A series of 1,2,4-triazolo[1,5-a]pyrimidine derivatives was designed, synthesized and screened for their antibacterial and antifungal activities as well as their safety profile. Compounds 2b, 3a, 6b, 8b, 8c, 8h, 9a,b, 10b, 11a,b and 12a,b showed high activity against Gram-positive and Gram-negative bacteria with MIC values ranging from 0.25 to 2.0 µg/mL. Many compounds were safe with no cytotoxicity
设计,合成和筛选了一系列1,2,4-三唑并[1,5-a]嘧啶衍生物的抗菌和抗真菌活性以及安全性。化合物2b,3a,6b,8b,8c,8h,9a,b,10b,11a,b和12a,b显示出对革兰氏阳性和革兰氏阴性细菌的高活性,MIC值为0.25至2.0 µg / mL。浓度高达32 µg / mL时,许多化合物是安全的,对人胚胎肾脏和红细胞没有细胞毒性。此外,与环丙沙星的IC50 = 0.85 µM相比,化合物9a对DNA促旋酶的抑制活性最高,IC50 = 0.68 µM。在DNA促旋酶活性位点的分子对接揭示了与环丙沙星相当的结合模式和对接分数,证实了它们通过DNA促旋酶的抑制具有抗菌活性。