1,5-α-<scp>d</scp>-Mannoseptanosides, Ring-Size Isomers That Are Impervious to α-Mannosidase-Catalyzed Hydrolysis

Abstract

1,5-D-mannoseptanosyl di- and trisaccharide ring-size isomers of the corresponding mannopyranosyl oligosaccharides have been prepared. Remarkably, these compounds show no inhibition of the alpha-mannosidase-catalyzed hydrolysis of p-nitrophenyl-alpha-D-mannopyranoside.