Low-Concentration 1,2-<i>trans</i>β-Selective Glycosylation Strategy and Its Applications in Oligosaccharide Synthesis
作者:Chin-Sheng Chao、Chen-Wei Li、Min-Chun Chen、Shih-Sheng Chang、Kwok-Kong Tony Mong
DOI:10.1002/chem.200901119
日期:2009.10.19
This study develops an operationally easy, efficient, and general 1,2‐trans β‐selectiveglycosylation reaction that proceeds in the absence of a C2 acyl function. This process employs chemically stable thioglycosyl donors and low substrate concentrations to achieve excellent β‐selectivities in glycosylation reactions. This method is widely applicable to a range of glycosyl substrates irrespective of
Rate-Dependent Inverse-Addition β-Selective Mannosylation and Contiguous Sequential Glycosylation Involving β-Mannosidic Bond Formation
作者:Shih-Sheng Chang、Che-Hao Shih、Kwun-Cheng Lai、Kwok-Kong Tony Mong
DOI:10.1002/asia.200900765
日期:2010.5.3
development of the contiguoussequentialglycosylation strategy, which streamlines the preparation of oligosaccharides invoking β‐mannosidic bondformation. The synthetic utility of the contiguousglycosylation strategy was demonstrated by the preparation of the trisaccharide core of human N‐linked glycoproteins and the trisaccharide repeating unit of the O‐specific polysaccharide found in the cellular capsule