Synthesis and Biological Evaluation of New Pleuromutilin Derivatives as Antibacterial Agents
作者:Ruo-Feng Shang、Guan-Hua Wang、Xi-Ming Xu、Si-Jie Liu、Chao Zhang、Yun-Peng Yi、Jian-Ping Liang、Yu Liu
DOI:10.3390/molecules191119050
日期:——
Several pleuromutilin derivatives possessing thiadiazole moieties were synthesized via acylation reactions under mild conditions. The in vitro antibacterial activities of the derivatives against methicillin-resistant S. aureus, methicillin-resistant S. epidermidis, S. aureus, S. epidermidis, E. coli, and B. cereus were tested by the agar dilution method and Oxford cup assay. All the screened compounds displayed potent activity. Compound 6d was the most active antibacterial agent because of its lowest MIC value and largest inhibition zone. Docking experiments were performed to understand the possible mode of the interactions between the derivatives and 50S ribosomal subunit. Moreover, the absorption, distribution, metabolism, excretion and toxicity properties of the synthesized compounds were analyzed after prediction using the Advanced Chemistry Development/Percepta Platform available online.
合成了几种具有噻二唑部分的多肽类衍生物,这些衍生物通过温和条件下的酰化反应进行合成。通过琼脂稀释法和牛津杯法测试了这些衍生物对耐甲氧西林金黄色葡萄球菌、耐甲氧西林表皮葡萄球菌、金黄色葡萄球菌、表皮葡萄球菌、大肠杆菌和蜡样芽孢杆菌的体外抗菌活性。所有筛选的化合物均显示出强效活性。化合物6d是最活跃的抗菌剂,其最低最低抑菌浓度(MIC)值和最大的抑制区指示了其优越的抗菌性能。进行了对接实验,以了解衍生物与50S核糖体亚基之间相互作用的可能模式。此外,合成化合物的吸收、分布、代谢、排泄和毒性特性经过使用在线可获得的先进化学开发/Percepta平台进行预测后进行了分析。