Total synthesis of a tetra- and two pentasaccharide fragments of the O-specific polysaccharide of Shigella flexneri serotype 2a
作者:Laurence A Mulard、Catherine Guerreiro
DOI:10.1016/j.tet.2004.01.054
日期:2004.3
The synthesis of the methyl glycoside of the branchedpentasaccharide biological repeating unit of the O-antigen of Shigellaflexneriserotype 2a is described together with that of the methyl glycoside of the corresponding tetrasaccharide and frame-shifted linear pentasaccharide. All the strategies disclosed herein involve a key disaccharide corresponding to the branching point and otherwise appropriate