Preparation of Monosaccharides and Oligosaccharides from Bacterial Polysaccharides

Preparation of Monosaccharides and Oligosaccharides from Bacterial Polysaccharides 

In most structural studies of the polysaccharides, oligosaccharides containing the nonulosonic acids were prepared in order to have better-resolved NMR spectra and for investigation by MS. In some examples, a monosaccharide or a monosaccharide glycoside were also prepared by chemical degradations. 

The hydrolytic cleavage of the glycosidic linkage of the sugars with an axial carboxyl group required more drastic conditions, but even these allowed selective degradation. For instance, selective cleavage of the 

1H NMR Data of Synthetic 5,7-Diacetamido-3,5,7,9-tetradeoxynon-2-ulosonic Acids  

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