Synthesis and Biological Evaluation of Cajaninstilbene Acid and Amorfrutins A and B as Inhibitors of the <i>Pseudomonas aeruginosa</i> Quorum Sensing System
作者:Xing-Jun Xu、Ting Zeng、Zhi-Xing Huang、Xiao-Fang Xu、Jing Lin、Wei-Min Chen
DOI:10.1021/acs.jnatprod.8b00315
日期:2018.12.28
The quorum sensing (QS) system inhibitors of Pseudomonas aeruginosa are thought to attenuate bacterial pathogenicity and drug resistance by inhibiting biofilm formation and the production of virulence factors. In this study, a synthetic approach to the natural products cajaninstilbene acid (1) and amorfrutins A (2) and B (3) has been developed and was characterized by the Heck reaction, which was used
铜绿假单胞菌的群体感应(QS)系统抑制剂被认为通过抑制生物膜的形成和毒力因子的产生来减弱细菌的致病性和耐药性。在这项研究中,已开发出一种天然产物cajaninstilbene酸(1)和amorfrutins A(2)和B(3)的合成方法,并以Heck反应为特征,该反应用于获得二苯乙烯核和Pinick氧化得到O-羟基苯甲酸。评价了这些化合物对铜绿假单胞菌群体感应系统的生物活性。Amorfrutin B(3)对铜绿假单胞菌PAO1表现出有希望的抗生物膜活性,其生物膜抑制率为50.3±2.7。构建了三种lacZ报告基因菌株,以鉴定化合物3对不同QS系统的影响。