Abstract Two novel series of chalcone-based homoserine lactones were synthesized and their quorum sensing (QS) inhibitory activity was evaluated against Pseudomonas aeruginosa in vitro. Furthermore these compounds’ capacity for modulation of the LasR -dependent quorum sensing system of P. aeruginosa was identified. Among these compounds, ( S )-2-((4-(3-(4-bromo-2-fluorophenyl) acryloyl) phenyl) amino)-
摘要 合成了两个新系列的
查尔酮基高
丝氨酸内酯,并在体外评估了它们对
铜绿假单胞菌的群体感应(QS)抑制活性。此外,还鉴定了这些化合物调节
铜绿假单胞菌的 LasR 依赖性群体感应系统的能力。在这些化合物中,( S )-2-((4-(3-(4-bromo-2-fluorophenyl) acryloyl) phenyl)amino)-N -(2-oxotetrahydrofuran-3-yl)乙酰胺对LasR有抑制作用与
溴化
呋喃酮 C30 相比,
铜绿假单胞菌的依赖 QS 系统。值得特别注意的是,这项研究提供了新型有效的群体感应
抑制剂 (QSI),它可以强烈抑制这种病原菌野生型菌株中毒力因子的产生。