Synthesis and structure–activity relationship of N<sup>4</sup>-benzylamine-N<sup>2</sup>-isopropyl-quinazoline-2,4-diamines derivatives as potential antibacterial agents
作者:Zhengyun Jiang、W. David Hong、Xiping Cui、Hongcan Gao、Panpan Wu、Yingshan Chen、Ding Shen、Yang Yang、Bingjie Zhang、Mark J. Taylor、Stephen A. Ward、Paul M. O'Neill、Suqing Zhao、Kun Zhang
DOI:10.1039/c7ra10352b
日期:——
structure activity relationships, all derivatives were tested for their antibacterial activities against Escherichia coli and Staphylococcus aureus via Kirby–Bauer assays and minimum inhibitory concentration assays. Eight of the most potent compounds against S. aureus and E. coli were also screened against one strain of methicillin-resistant S. aureus (MRSA), Staphylococcus epidermidis and Salmonella typhimurium
已经合成了一系列的N 4-苄胺-N 2-异丙基-喹唑啉-2,4-二胺衍生物,并测试了其对五种细菌菌株的抗菌活性。已经研究了N 4-苄胺基团上的十二个不同的取代基以及喹唑啉核心的取代(苯并噻吩或区域异构的吡啶并嘧啶环系统)。为了建立结构活性关系,通过Kirby-Bauer测定法和最小抑菌浓度测定法测试了所有衍生物对大肠杆菌和金黄色葡萄球菌的抗菌活性。八种最有效的抗金黄色葡萄球菌的化合物还针对一种耐甲氧西林金黄色葡萄球菌(MRSA),表皮葡萄球菌和鼠伤寒沙门氏菌的菌株筛选了E.coli和E. coli,以进一步检查它们的抗菌活性。铅化合物A5显示出良好的活性为3.9的MIC微克毫升-1对大肠杆菌,金黄色葡萄球菌和表皮葡萄球菌和7.8微克毫升-1对MRSA。还对选定的前跑步者进行了体外DMPK特性筛选,以评估其进一步发展的潜力。