Study of the Glycosidation Properties of 1-Thiomannosazidopyranosides and 1-Thiomannosaziduronic Acid Esters
作者:Leendert J. van den Bos、Boudewijn A. Duivenvoorden、Martijn C. de Koning、Dmitri V. Filippov、Herman S. Overkleeft、Gijsbert A. van der Marel
DOI:10.1002/ejoc.200600759
日期:2007.1
A study of the glycosylation properties of 1-thiomannosazides with a variety of electron-withdrawing substituents in combination with the Ph2SO/Tf2O and NIS/TMSOTf reagent systems is presented. Further, assembly of the fully protected trisaccharide 26, which corresponds to the repeating unit of the enterobacterial common antigen, using both an orthogonal and a chemoselective coupling strategy and based
研究了具有多种吸电子取代基的 1-硫代甘露糖肼与 Ph2SO/Tf2O 和 NIS/TMSOTf 试剂系统的糖基化特性。此外,还讨论了完全保护的三糖 26 的组装,该三糖对应于肠细菌共同抗原的重复单元,使用正交和化学选择性偶联策略并基于我们的糖基化研究结果进行了讨论。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)