The Staudinger/aza-Wittig/Grignard reaction as key step for the concise synthesis of 1-C-Alkyl-iminoalditol glycomimetics
作者:Manuel Zoidl、Andres Gonzalez Santana、Ana Torvisco、Christina Tysoe、Aloysius Siriwardena、Stephen G. Withers、Tanja M. Wrodnigg
DOI:10.1016/j.carres.2016.04.006
日期:2016.6
The scope of a one-pot tandem approach for the synthesis of C-1 alkyl iminoalditol derivatives with a Staudinger/aza-Wittig/Grignard cascade has been evaluated. The reaction conditions have been optimized for two azidodeoxy aldose substrates and a range of Grignard reagents. The nature of both, substrate as well as nucleophile, was found to control the stereoselectivity of the alkyl addition to the
已经评估了一锅串联方法与Staudinger / aza-Wittig / Grignard级联反应合成C-1烷基亚氨基糖醇衍生物的范围。反应条件已针对两种叠氮脱氧醛糖醛底物和一系列格氏试剂进行了优化。发现底物和亲核试剂两者的性质均控制烷基加成至位置C-1处的环亚胺中间体的烷基的立体选择性。这种方法使得能够合成C-烷基亚氨基醛醇的集合,该C-烷基亚氨基醛醇在生物学上被评估为对一组标准糖苷水解酶的抑制剂。发现所有化合物均表现出对β-葡萄糖苷酶活性的高度选择性抑制。