Two Straightforward Strategies for the Synthesis of Thiodisaccharides with a Furanose Unit as the Nonreducing End
作者:Evangelina Repetto、Carla Marino、M. Laura Uhrig、Oscar Varela
DOI:10.1002/ejoc.200700874
日期:2008.1
Thiodisaccharides having a 1-thiopentofuranose nonreducingend were synthesized by two routes starting from per-O-acylaldofuranoses with arabino, ribo, and xylo configurations. These glycosyl donors were converted into S-glycosyl isothiourea derivatives as precursors of 1-thiofuranose units, which were generated in situ and trapped by a sugar enone to produce, by Michael addition, the thioglycosidic