Abstract:
The pentasaccharide repeating unit of the O-antigen of E. coli O117:K98:H4 strainhas been synthesizedusing a combination of sequential glycosylations and [3+2] block synthetic strategyfrom the suitably protected monosaccharide intermediates.Thioglycosidesand glycosyltrichloroacetimidatederivativeshave been used as glycosyl donors in the glycosylations.
