Straightforward synthesis of the pentasaccharide repeating unit of the cell wallO-antigen ofEscherichia coliO43 strain

被引:4
作者
Shit, Pradip [1 ]
Misra, Anup Kumar [1 ]
机构
[1] Bose Inst, Div Mol Med, P-1-12,CIT Scheme 7 M, Kolkata 700054, India
关键词
Oligosaccharide; Glycosylation; O-antigen; Diarrhea; E; coli; ESCHERICHIA-COLI; PROTECTING GROUP; O-ANTIGEN; GLYCOSYLATION; EFFICIENT; THIOGLYCOSIDE; SALMONELLA; STRATEGIES; GLYCOSIDES; CHEMISTRY;
D O I
10.1007/s10719-020-09933-z
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A concise synthetic strategy has been developed for the synthesis of the pentasaccharide repeating unit of the cell wallO-antigen ofEscherichia coliO43 strain involving stereoselective beta-D-mannosylation and alpha-L-fucosylation using corresponding trichloroacetimidate intermediates and perchloric acid supported over silica (HClO4-SiO2) as glycosylation promoter. The yield and stereoselectivity of the glycosylations were very good.
引用
收藏
页码:647 / 656
页数:10
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