作者:Jing-Li Ren、En Zhang、Xian-Wei Ye、Meng-Meng Wang、Bin Yu、Wen-Hua Wang、Ya-Zhuo Guo、Hong-Min Liu
DOI:10.1016/j.bmcl.2013.05.035
日期:2013.7
Two series of novel AHL analogues were designed, synthesized and evaluated for antibacterial activity under cell membrane conditions in vitro. Analogues 4a–c and 4g–m presented potent activity against Gram-positive bacteria. Especially the analogue 4l exerted the most potent inhibition against Bacillus subtilis with MIC50 value of 1.443 μg/ml. To our surprise, analogues 6a–c and 6g showed weak inhibition
设计,合成了两个系列的新型AHL类似物,并在体外细胞膜条件下评估了其抗菌活性。类似物4a – c和4g – m表现出对革兰氏阳性细菌有效的活性。尤其是类似物4l对枯草芽孢杆菌具有最强的抑制作用,MIC 50值为1.443μg/ ml。令我们惊讶的是,类似物6a – c和6g对MIC 50的革兰氏阴性菌抑制作用较弱值范围从17.589到67.840μg/ ml。这是有关含二硫酯键的AHL类似物的合成和体外抗菌评估的第一份报告。