extreme conditions. Chemical synthesis of the archaeal N‐glycans represents a crucial step towards understanding the putative function of protein glycosylation in archaea. Herein the first total synthesis of the archaeal L‐asparagine linked hexasaccharide from Methanothermus fervidus is reported using a highly convergent [3+3] glycosylation approach in high overall yields. The synthesis relies on efficient
在古细菌中已经鉴定出几种N-连接的糖蛋白,并且越来越多的证据表明N-聚糖在极端条件下与古细菌的存活和功能有关。古细菌N-聚糖的
化学合成代表了理解古细菌蛋白质糖基化假定功能的关键步骤。本文报道了使用高度收敛的[3 + 3]糖基化方法以高总收率从产
甲烷杆菌(Methanothermus fervidus)首次合成古L-天冬酰胺连接的六糖。合成依赖于为正交糖基化和晚期N-天冬
氨酰化反应的区域选择性保护的
硫代糖苷结构单元的有效制备。