Novel heterocyclic 1,3,4-oxadiazole derivatives of fluoroquinolones as a potent antibacterial agent: Synthesis and computational molecular modeling
作者:Tejeswara Rao Allaka、Bhaskar Kummari、Naveen Polkam、Naveen Kuntala、Kalyani Chepuri、Jaya Shree Anireddy
DOI:10.1007/s11030-021-10287-3
日期:2022.6
and synthesis of novel series of 1,3,4-oxadiazoles containing FQs derivatives and screened their antibacterial, antimycobacterial properties. The synthesized compounds were characterized by different spectral techniques like IR, 1H NMR, 13C NMR, mass and elemental analysis. The results of the antimicrobial activity and compounds 6d, 6b, 6e, 6f and 6a demonstrated potent antibacterial activities with
设计和合成新系列的含 FQs 衍生物的 1,3,4-恶二唑,并筛选其抗菌、抗分枝杆菌特性。合成的化合物通过IR、1 H NMR、13 C NMR、质量和元素分析等不同的光谱技术进行表征。抗菌活性的结果和化合物6d、6b、6e、6f和6a证明了对金黄色葡萄球菌、粪肠球菌、肺炎链球菌、大肠杆菌的有效抗菌活性,抑制区为 42、36、37、34 和 30 mm . 大肠杆菌和K. 肺炎, 分别. 1,3,4-恶二唑衍生物6a、6b、6g对耻垢分枝杆菌 H 37 Rv表现出优异的抗分枝杆菌活性,MIC 分别为 22.35、16.20、20.28 µg/mL。FQ 6d和6b与 Asp83 (3.11 A˚)、Ser80 (2.15 A˚) Asp27 (σ-σ)、Arg87 (Π-Π)、Arg87 (Π-Π)、Ser80 (σ-σ) 表现出最高的氢键相互作用, Ala84 (σ-σ) 和结合能 ΔG