Substituted Salicylanilides as Inhibitors of Two-Component Regulatory Systems in Bacteria
作者:Mark J. Macielag、James P. Demers、Stephanie A. Fraga-Spano、Dennis J. Hlasta、Sigmond G. Johnson、Ramesh M. Kanojia、Ronald K. Russell、Zhihua Sui、Michele A. Weidner-Wells、Harvey Werblood、Barbara D. Foleno、Raul M. Goldschmidt、Michael J. Loeloff、Glenda C. Webb、John F. Barrett
DOI:10.1021/jm9803572
日期:1998.7.1
A new class of inhibitors of the two-component regulatory systems (TCS) of bacteria was discovered based on the salicylanilide screening hits, closantel (1) and tetrachlorosalicylanilide (9). A systematic SAR study versus a model TCS, KinA/Spo0F, demonstrated the importance of electron-attracting substituents in the salicyloyl ring and hydrophobic groups in the anilide moiety for optimal activity.
基于水杨酰苯胺的筛选命中氯梭菌(1)和四氯水杨酰苯胺(9),发现了一种新型的细菌两组分调节系统(TCS)抑制剂。系统的SAR研究与模型TCS KinA / Spo0F相比,证明了水杨酰环中吸引电子的取代基和苯胺部分中的疏水基团具有最佳活性的重要性。另外,含有2,3-二羟基苯甲腈结构基序的衍生物8和16是KinA激酶自磷酸化的有效抑制剂,IC50分别为2.8和6. 3 µM。化合物8还以低于抑制生长的浓度抑制了基因工程化粪肠球菌细胞系中介导万古霉素抗性的TCS(VanS / VanR)。氯沙坦(1),四氯水杨基苯胺(9),