作者:Anna Kulesza、Christian?G. Frank、Markus Aebi、Andrea Vasella
DOI:10.1002/hlca.200490278
日期:2004.12
Four oleyl or dolichyl thiophosphate esters 16, 17, 21, and 22, analogues of Dol-P-Man possessing C(1)S and/or PS bonds, were synthesized as potential inhibitors of mannosyl transferases operating in the endoplasmic reticulum (ER). The β-mannosyl derivatives were prepared by a Mitsunobu reaction of 2,3,4,6-tetra-O-acetyl-α-D-mannopyranose (1) with the thiophosphate 2 that provided O- and S-glycosides
四个油烯或萜醇基硫代磷酸酯16,17,21,和22,DOL-P-曼的类似物具有C(1)S和/或PS键合成为内质网中操作甘露糖基转移酶的潜在抑制剂(ER) 。的β -mannosyl衍生物通过一制备的Mitsunobu 2,3,4,6-四的反应ö乙酰基α -D-吡喃甘露糖(1)与硫代2所提供ø -和小号具有良好至-glycosides -出色的非对映选择性。获得β-甘露糖基衍生物的第二种途径是基于β的磷酸化作用-亚磷酰胺基硫醇3与亚磷酰胺4a和4b。用t- BuOOH氧化中间体油基硫代亚磷酸酯可生成单硫代磷酸酯和二硫代磷酸酯。的thiophospholipids 16,21,和22无活性的人的抑制剂6葡糖胺(GlcNAc)2 -PP-DOL糖脂伸长率。