Fucosylation of Linear Alcohols: A Study of Parameters Influencing the Stereochemistry of Glycosylation
作者:Henricus J. Vermeer、Christiaan M. van Dijk、Johannis P. Kamerling、Johannes F. G. Vliegenthart
DOI:10.1002/1099-0690(200101)2001:1<193::aid-ejoc193>3.0.co;2-s
日期:2001.1
described several procedures for fucosylation of linear alcohols 9-16 with L-fucose (1) and a series of 2-Obenzyl-protected fucopyranosyl donors 3-8, together with parameters influencing the stereochemistry of glycosylation, such as protecting groups, catalysts, and dielectric constants of solvents. Although high AE-selectivities have often been reported for fucosylation reactions with glycosyl acceptors
L-岩藻糖是许多糖缀合物的组成部分,通常在参与生物功能的表位中起关键作用。这些化合物的化学合成对于产生足够的材料来探索其生物活性的分子细节是必要的。在这种情况下,开发实用的立体选择性 AE-岩藻糖基化反应至关重要。这里描述了线性醇 9-16 与 L-岩藻糖 (1) 和一系列 2-苄基保护的吡喃岩藻糖基供体 3-8 的岩藻糖基化的几种程序,以及影响糖基化立体化学的参数,如保护基团、催化剂, 和溶剂的介电常数。尽管经常报道与糖基受体的岩藻糖基化反应具有高 AE 选择性,但这里从未观察到完全的 AE 选择性,使用线性