Efficient synthesis of a nucleoside-diphospho-exo-glycal displaying time-dependent inactivation of UDP-galactopyranose mutase
作者:Audrey Caravano、Stéphane P. Vincent、Pierre Sinaÿ
DOI:10.1039/b402469a
日期:——
A short and efficient synthesis of UDP-exo-galactofuranosyl-glycal is presented. This molecule displayed an interesting time-dependent inactivation of UDP-galactopyranose mutase, an essential enzyme of the mycobacterial cell wall biosynthesis.
A Novel Base-Induced Isomerization Gives Access to Unprecedented (<i>E</i>)-<i>exo</i>-Glycals
作者:Guillaume Eppe、Lidia Dumitrescu、Olivier Pierrot、Tianlei Li、Weidong Pan、Stéphane P. Vincent
DOI:10.1002/chem.201300969
日期:2013.8.26
Bump the base: This study reports the discovery of the base‐induced Z‐to‐Eisomerization of exo‐glycals bearing an electron‐withdrawing group (EWG). The scope of this novel transformation regarding the carbohydrate unit is also discussed. After elucidating the mechanism, preparation of novel (E)‐exo‐ glycals was performed (TBS=tert‐butyldimethylsilyl).