A template guided approach to generating cell permeable inhibitors of Staphylococcus aureus biotin protein ligase
作者:Ashleigh S. Paparella、Jiage Feng、Beatriz Blanco-Rodriguez、Zikai Feng、Wanida Phetsang、Mark A.T. Blaskovich、Matthew A. Cooper、Grant W. Booker、Steven W. Polyak、Andrew D. Abell
DOI:10.1016/j.tet.2017.10.032
日期:2018.3
Inhibitors of biotin protein ligase (BPL) are novel antimicrobial compounds with the potential to treat infections caused by bacteria resistant to current antibiotics. A novel BPL inhibitor (12, Ki 1.4 μM) was synthesized from biotin acetylene and an azide-functionalized analogue of fluorescent nitrobenzofurazan by Cu(I) catalysed cycloaddition and also by template guided synthesis using wild-type
生物素蛋白连接酶(BPL)抑制剂是新型抗菌化合物,具有治疗由对目前抗生素具有抗性的细菌引起的感染的潜力。一种新的BPL抑制剂(12,K i 1.4μM)是由生物素乙炔和叠氮基官能化的荧光硝基苯并呋喃类似物通过Cu(I)催化的环加成反应合成的,也通过模板指导的合成方法使用了金黄色葡萄球菌的野生型BPL合成的。基于LC / HRMS的检测与使用突变BPL的先前报告相比提供了更高的灵敏度,并证明了其对其他BPL的适用性。超成像荧光显微镜显示金黄色葡萄球菌细胞质中有12种积累,但没有大肠杆菌。这种新颖的荧光探针可用于获得对金黄色葡萄球菌中BPL抑制剂的摄取,外排和代谢机制的新见解。