A one-pot synthesis of trisaccharides was successfully carried out by combination of two types of the trityl tetrakis(pentafluorophenyl)borate catalyzed stereoselective glycosylation reactions. Selective activation of a glycosyl phenyl carbonate in the presence of a thioglycoside allows two successive glycosyl coupling in one-pot manner to afford several protected trisaccharides, Glcβ1-6Glcβ1-6Glc, in good to high yields.
通过结合两种类型的三苯基
四氟苯基
硼酸盐催化的立体选择性糖苷化反应,成功实现了一锅法合成三糖。在
硫糖苷存在的情况下,选择性激活糖苷
苯基碳酸酯允许在一锅中进行两次连续的糖苷偶联,获得了几种保护的三糖Glcβ1-6Glcβ1-6Glc,产率为中高等。