Base-promoted glycosylation is a recently established stereoselective and regioselective approach for the assembly of di- and oligosaccharides by using partially protected acceptors and glycosyl halide donors. Initial studies were performed on partially methylated acceptor and donor moieties as a model system in order to analyze the key principles of oxyanion reactivities. In this work, extended studies on base-promoted glycosylation are presented by using benzyl protective groups in view of preparative applications. Emphases are placed on the influence of the acceptor anomeric configuration and donor reactivities.
碱促进的糖基化是一种最近建立的立体选择性和区域选择性方法,通过使用部分保护的受体和糖基卤代供体组装二糖和寡糖。最初的研究是在部分甲基化的受体和供体基团上进行的,作为一个模型系统,以分析氧阴离子反应性的关键原理。在这项工作中,通过使用苄基保护基团进行扩展研究,以便于制备应用。重点放在受体异构构型和供体反应性的影响上。