Abstract (2,3-Di- O -acetyl)hexakis(2,3,6-tri- O -acetyl)cyclomaltoheptaose was prepared by reaction of cyclomaltoheptaose with tert -butyldimethylsilyl chloride in pyridine followed by acetylation and desilylation. Glycosylation with 2,3,4,6-tetra- O -benzyl-1- O -trichloroacetimidoyl-α- d -glucopyranose, using trifluoromethanesulfonic acid as catalyst, and removal of the protecting groups from the
摘要通过将环麦芽庚糖与叔丁基二甲基甲
硅烷基
氯在
吡啶中反应,然后进行乙酰化和去甲
硅烷基化反应,制得(2,3-二-O-乙酰基)六(2,3,6-三-O-乙酰基)环麦芽九糖。使用
三氟甲磺酸作为催化剂,用2,3,4,6-四-O-苄基-1-O-三
氯乙
酰亚胺基-α-d-
吡喃
葡萄糖进行糖基化,然后从产物中除去保护基,得到标题化合物。