Antivirulence <i>C</i>-Mannosides as Antibiotic-Sparing, Oral Therapeutics for Urinary Tract Infections
作者:Laurel Mydock-McGrane、Zachary Cusumano、Zhenfu Han、Jana Binkley、Maria Kostakioti、Thomas Hannan、Jerome S. Pinkner、Roger Klein、Vasilios Kalas、Jan Crowley、Nigam P. Rath、Scott J. Hultgren、James W. Janetka
DOI:10.1021/acs.jmedchem.6b00948
日期:2016.10.27
activity in animal models of UTI but were found to have limited compound exposure due to the metabolic instability of the O-glycosidic bond (O-mannosides). Herein, we disclose that compounds having the O-glycosidic bond replaced with carbon linkages had improved stability and inhibitory activity against FimH. We report on the design, synthesis, and in vivo evaluation of this promising new class of carbon-linked
革兰氏阴性尿路致病性大肠杆菌(UPEC)细菌是尿路感染(UTI)的致病性病原体。先前开发的1型菌毛粘附素FimH的抗毒抑制剂在UTI动物模型中表现出口服活性,但由于O-糖苷键(O-甘露糖苷)的代谢不稳定而被发现具有有限的化合物暴露。本文中,我们公开了具有被碳键取代的O-糖苷键的化合物具有改善的稳定性和对FimH的抑制活性。我们报告了这种有前途的新型碳连接的C-甘露糖苷类化合物的设计,合成和体内评估,该类化合物相对于药物动力学具有改善的药代动力学(PK)性能O-甘露糖苷。有趣的是,我们发现FimH结合受到亚甲基接头上的羟基取代的立体定向调节,其中R-羟基异构体的效价提高了60倍。这类新的C-甘露糖苷拮抗剂具有显着增加的化合物暴露,因此在急性和慢性UTI小鼠模型中具有增强的功效。