Synthesis of part of a proposed insulin second messenger glycosylinositol phosphate and the inner core of glycosylphosphatidylinositol anchors
作者:Per J. Garegg、Peter Konradsson、Stefan Oscarson、Katinka Ruda
DOI:10.1016/s0040-4020(97)10238-1
日期:1997.12
2-cyclic phosphate, proposed as part of an insulin second messenger glycosylinositol phosphate, is described. Chirality in the inositol part of the molecule was achieved by the use of a known D-camphor acetal intermediate. The glycosylation used 4-O-allyl-2-azido-3,6-di-O-benzyl-2-deoxy-α-D-glucopyranosyl fluoride as glycosyl donor. The allyl group can be chemoselectively removed, opening a route to oligosaccharides
合成6- ø - (2-氨基-2-脱氧- α-d-D-吡喃葡萄糖基)-D-肌醇-1-磷酸,内芯结构中的各种glycosylphosphatidylinositols找到,并且相应的1,2-环磷酸酯,描述了作为胰岛素第二信使糖基肌醇磷酸酯的一部分提出的方法。分子的肌醇部分中的手性是通过使用已知的D-樟脑缩醛中间体来实现的。糖基化使用4 - O-烯丙基-2-叠氮基3,6-二-O-苄基-2-脱氧-α-D-吡喃葡萄糖基氟作为糖基供体。烯丙基可以被化学选择性地去除,从而打开了一条与葡糖胺单元的4位结合的寡糖的途径。磷酸化通过氨基磷酸酯方法完成。