Abstract N -Phthaloyl derivatives of 2-acetamido-2-deoxy- d -glucose having OH-1 free treated with trichloroacetonitrile and sodium hydride gave the corresponding O -(β- d -glycosyl)trichloroacetimidates which in the presence of diethyl ether·borontrifluoride, led selectively with alcohols to β- d -glycosides. This procedure was applied to the synthesis of oligosaccharides from the core region of mucine-type
摘要经
三氯乙腈和氢化
钠处理的OH-1游离基的2-乙酰
氨基-2-脱氧-d-
葡萄糖的N-
邻苯二甲酰基衍
生物,在二
乙醚·
三氟化硼的存在下,给出了相应的O-(β-d-糖基)三
氯乙亚
氨酸酯。 ,用醇选择性地导致β-d-糖苷。该方法被用于从鼠型O-糖蛋白的核心区域合成
寡糖。因此,β-d-Gal p-(1→4)-β-d-Glc p NAc-(1→3)-d -GalNAc和β-d-Gal-(1→4)-β-d-Glc获得了p NAc- [β-d-Glc p NAc-((1→3)]-d-GalNAc。