Pentafluoropropionyl and trifluoroacetyl groups for temporary hydroxyl group protection in oligomannoside synthesis
作者:Maki Takatani、Ichiro Matsuo、Yukishige Ito
DOI:10.1016/s0008-6215(03)00099-5
日期:2003.5
Pentafluoropropionyl (PFP) and trifluoroacetyl (TFA) esters were demonstrated to be useful in facile oligosaccharide synthesis. These were well compatible with glycosylation conditions and removable by treatment with pyridine-EtOH, with complete preservation of acetyl groups. Analytically pure products were obtained quantitatively, simply by evaporating the reaction mixtures. Using O-PFP and O-TFA
已证明五氟丙酰基(PFP)和三氟乙酰基(TFA)酯可用于简便的寡糖合成。这些与糖基化条件很好地相容,并且可以通过用吡啶-EtOH处理而除去,并完全保留乙酰基。仅通过蒸发反应混合物即可定量获得分析纯的产物。使用带有糖基卤化物的O-PFP和O-TFA,单糖基化的高甘露糖型十二糖(Manalpha1-> 2Manalpha1-> 2Man)和四糖(Glcalpha1-> 3Manalpha1-> 2Manalpha1-> 2Man)部分合成了Glc(1)Man(9)GlcNAc(2)),它是ER伴侣,钙粘蛋白和钙网蛋白的推定配体。