Design, synthesis and antibacterial evaluation of novel pleuromutilin derivatives possessing piperazine linker
作者:Mei-Ling Gao、Jie Zeng、Xi Fang、Jian Luo、Zhen Jin、Ya-Hong Liu、You-Zhi Tang
DOI:10.1016/j.ejmech.2017.01.004
日期:2017.2
series of pleuromutilin derivatives bearing piperazine ring have been reported. The in vitro antibacterial activities of the synthetic derivatives against MRSA (ATCC 43300), Staphylococcus aureus (ATCC 29213), Enterococcus faecalis (ATCC 29212), Enterococcus faecium (ATCC35667) and Escherichia coli (ATCC25922) were evaluated by the broth dilution method. Most of the synthesized derivatives displayed
已经报道了一系列带有哌嗪环的截短侧耳素衍生物。在体外对MRSA(ATCC 43300),该合成的衍生物的抗菌活性的金黄色葡萄球菌(ATCC 29213),粪肠球菌(ATCC 29212),屎肠球菌(ATCC35667)和大肠杆菌(ATCC25922)是由肉汤稀释法进行评价。大多数合成的衍生物显示出有效的活性。发现化合物11c,12a和12c是针对MRSA的活性最高的抗菌衍生物(最低抑制浓度= 0.015μg/ mL)。化合物11c的结合,通过分子建模研究了到50年代核糖体的12a和12c。与化合物12a和12c相比,化合物11c具有较低的结合自由能。在MRSA系统性感染模型中进一步评估了化合物11c,并显示出优于替米林的体内疗效。