Synthesis of glycopeptides from the carbohydrate-protein linkage region of proteoglycans
作者:Sandrine Rio、Jean-Marie Beau、Jean-Claude Jacquinet
DOI:10.1016/0008-6215(91)89043-f
日期:1991.10
non-glycosylated dipeptide segments, and coupling using the mixed-anhydride procedure allowed the construction in high yield of partially or fully glycosylated oligopeptides from the carbohydrate-protein linkage region of proteoglycan.
将2,3,4,6-四-O-苯甲酰基-α-D-半乳糖核糖基三氯乙酰亚胺酸酯与苄基2,3-O-异亚丙基-β-D-吡喃吡喃糖苷缩合得到相应的β-(1 ---- 4 )-连接的二糖衍生物,将其转化为2,3-二-O-苯甲酰基-4-O-(2,3,4,6-四-O-苯甲酰基-β-D-吡喃半乳糖基)-α-D-木吡喃糖基三氯乙酰亚氨酸。该糖基供体与一组选择性的C,N-保护的L-丝氨酸-甘氨酸二肽单元缩合。在糖基化或非糖基化二肽段的C末端或N末端进行选择性解封,并使用混合酸酐法进行偶联,可以从蛋白聚糖的碳水化合物-蛋白质连接区高产率构建部分或完全糖基化的寡肽。