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
Synthesis of N-glycans is of high current interests due to their important biological properties. A highly efficient convergent strategy based on the pre-activation method for assembly of the complex type core fucosylated bi-antennary N-glycan dodecasaccharide has been developed. Retrosynthetically, this extremely challenging target is broken down to three modules: a sialyl disaccharide, a glucosamine