One-pot synthesis of branched oligosaccharides by use of galacto- and mannopyranosyl thioglycoside diols as key glycosylating agents
作者:Xing-Yong Liang、Qiang-Wei Liu、Hua-Chao Bin、Jin-Song Yang
DOI:10.1039/c3ob40421h
日期:——
one-pot synthesis of three fully protected oligosaccharides 22, 36, and 50 with di-branched structures by employing D-galacto- and mannopyranosyl thioglycoside diols as central glycosylating agents. After global deprotection, they were converted respectively into the 3-aminopropyl linker-containing free oligosaccharide fragments 14, 24, and 38 structurally related to cell wall oligosaccharides from Atractylodes
我们描述在本文中的高效的四组分一锅合成的三个完全受保护的低聚糖22,36,和50与二支化结构通过采用d -galacto-和吡喃甘露糖基硫代糖苷二醇中央糖基化剂。完全脱保护后,将它们分别转化成3-氨基丙基含有接头-自由寡糖片段14,24,和38结构上与细胞壁寡糖从苍术DC,海洋真菌Lineolata rhizophorae和致病结核分枝杆菌。异头碳原子上的3-氨基丙基接头可使这些合成的低聚物与合适的蛋白质载体缀合。