Synthesis of a Potential 10E4 Tetrasaccharide Antigen Involved in Scrapie Pathogenesis
作者:Pascal Bindschädler、Christian Noti、Eva Castagnetti、Peter H. Seeberger
DOI:10.1002/hlca.200690234
日期:2006.11
To test the hypothesis that tetrasaccharide 3 is involved in scrapie pathogenesis, tetrasaccharide derivative 32 functionalized with an amine linker at the reducing end was synthesized. A (2 + 2) glycosylation approach was chosen to furnish the target compound in fully protected form. To investigate its biological role, tetrasaccharide 32 was further functionalized to the corresponding thiol 33 using
为了检验四糖3参与瘙痒病发病机理的假说,合成了在还原端用胺连接基官能化的四糖衍生物32。选择(2 + 2)糖基化方法以完全保护的形式提供目标化合物。为了研究其生物学作用,使用Traut试剂将四糖32进一步官能化为相应的硫醇33。在合成过程中,N,N-二乙酰基保护基被证明对自由基和酸性条件不稳定。