Synthesis, biological activities and docking studies of pleuromutilin derivatives with piperazinyl urea linkage
作者:Yuanyuan Zhang、Chuan Xie、Yang Liu、Feng Shang、Rushiya Shao、Jing Yu、Chunxia Wu、Xinghui Yao、Dongfang Liu、Zhouyu Wang
DOI:10.1080/14756366.2021.1900163
日期:2021.1.1
promising antibiotic candidate. In this study, a series of novel pleuromutilin derivatives possessing piperazinyl urea linkage were efficiently synthesised, and their antibacterial activities and bactericidal properties were evaluated via MIC, MBC and Time-kill kinetics assays. The results showed that all compounds exhibited potent activities against tested strains, especially MRSA strains with MIC values
抽象的 抗生素耐药性变得越来越普遍,几乎涉及市场上所有的抗生素。由耐药细菌(例如 MRSA)引起的疾病死亡率很高,并对公众健康产生负面影响。新药的开发将是解决这一问题的有效手段。基于生物活性天然产物的修饰可以大大缩短药物开发时间并提高成功率。截短侧耳素是一种来自担子菌的天然产物,是一种有前途的候选抗生素。本研究高效合成了一系列具有哌嗪基脲键的新型截短侧耳素衍生物,并通过 MIC、MBC 和 Time-kill 动力学测定评估了它们的抗菌活性和杀菌特性。结果表明,所有化合物均对受试菌株表现出有效的活性,特别是对MRSA菌株,MIC值低至0.125 μg/mL;比市售抗生素泰妙菌素低8倍。对接研究表明取代的哌嗪基脲衍生物可以提供氢键并引发分子和周围残基之间的π-π堆积。