Synthesis of Two Tetrasaccharide Pentenyl Glycosides Related to the Pectic Rhamnogalacturonan I Polysaccharide
作者:Alexandra Zakharova、Shahid Awan、Faranak Nami、Charlotte Gotfredsen、Robert Madsen、Mads Clausen
DOI:10.3390/molecules23020327
日期:——
The synthesis of two protected tetrasaccharide pentenyl glycosides with diarabinan and digalactan branching related to the pectic polysaccharide rhamnogalacturonan I is reported. The strategy relies on the coupling of N-phenyl trifluoroacetimidate disaccharide donors to a common rhamnosyl acceptor. The resulting trisaccharide thioglycosides were finally coupled to an n-pentenyl galactoside acceptor
报道了与
果胶多糖鼠李糖半乳糖醛酸聚糖 I 相关的具有双阿拉伯聚糖和双
半乳聚糖分支的两种受保护四糖
戊烯基糖苷的合成。该策略依赖于 N-
苯基三
氟乙
酰亚胺二糖供体与常见
鼠李糖受体的偶联。得到的三糖
硫糖苷最终与正
戊烯基半
乳糖苷受体偶联以接近两个受保护的支链四糖。