Synthesis and antibacterial evaluation against resistant Gram-negative bacteria of monobactams bearing various substituents on oxime residue
作者:Zhi–Wen Li、Xi Lu、Yan–Xiang Wang、Xin–Xin Hu、Hai–Gen Fu、Li–Mei Gao、Xue–Fu You、Sheng Tang、Dan–Qing Song
DOI:10.1016/j.bioorg.2019.103487
日期:2020.1
Based on the structural characteristics of aztreonam (AZN) and its target PBP3, a series of new monobactam derivatives bearing various substituents on oxime residue were prepared and evaluated for their antibacterial activities against susceptible and resistant Gram-negative bacteria. Among them, compounds 8p and 8r displayed moderate potency with MIC values of 0.125-32 μg/mL against most tested Gram-negative
根据氨曲南(AZN)及其目标PBP3的结构特征,制备了一系列在肟残基上带有各种取代基的新型单bactam衍生物,并评估了它们对敏感和耐药革兰氏阴性细菌的抗菌活性。其中,化合物8p和8r对大多数测试的革兰氏阴性菌株表现出中等效力,MIC值为0.125-32μg/ mL,与AZN相当。同时,以1:16的比例将8p和8r与avibactam作为β-内酰胺酶抑制剂的组合显示出对产生ESBLs和NDM-1的肺炎克雷伯菌的有希望的协同作用,并且MIC值显着降低分别为8倍和> 256倍。此外,它们在体外和体内均显示出优异的安全性。