The synthesis and antibacterial activity of totarol derivatives. part 3: modification of ring-B
作者:Gary B Evans、Richard H Furneaux、Graeme J Gainsford、Michael P Murphy
DOI:10.1016/s0968-0896(00)00096-1
日期:2000.7
Ring-B derivatization of totarol (1) afforded the series of compounds 2-22 which were screened in vitro against: beta-lactamase-positive and high level gentamycin-resistant Enterococcus faecalis, penicillin-resistant Streptococcus pneumoniae, methicillin-resistant Staphylococcus aureus (MRSA), and multiresistant Klebsiella pneumoniae. Several of the derivatives retained much of the antibacterial activity
环戊烷的B环衍生化(1)提供了一系列化合物2-22,它们在体外针对以下化合物进行了筛选:β-内酰胺酶阳性和对庆大霉素耐药的粪便肠球菌,耐青霉素的肺炎链球菌,耐甲氧西林的金黄色葡萄球菌MRSA)和多重耐药性肺炎克雷伯菌。几种衍生物保留了totatol对这些生物的前三种的大部分抗菌活性(均为革兰氏阳性),但没有一个具有更高的活性。革兰氏阴性克雷伯菌对所有检测的化合物均具有抗性。Totarol(1)已显示在50 microM分离的线粒体中解偶联氧化磷酸化作用。