Application of glycals to the synthesis of oligosaccharides: Convergent total syntheses of the Lewis X trisaccharide sialyl Lewis X antigenic determinant and higher congeners

Article abstract of DOI:10.1021/ja00112a007

Exploiting the differences in reactivity of the hydroxyl groups of glucal allows for rapid access to the sLe^x tetrasaccharide glycal. This compound is readily converted to the title compounds by azaglycosylation followed by deprotection. The us