glycoside formation, but also promote undesired reactions of the glycoside products. Use of 'minimally competent' Lewis acids such as InBr(3) promotes the desired activation catalytically, and with greatly reduced side products from sugar peracetates.
描述了一种用于制备用于 O 联糖肽合成的 Fmoc-
丝氨酸和 Fmoc-苏
氨酸糖苷的简化方法。
路易斯酸促进糖苷形成,但也促进糖苷产物的不希望的反应。使用“最低限度的”
路易斯酸(如 InBr(3))可促进所需的活化催化,并大大减少
过乙酸糖的副产物。