Isolation and structural characterization of novel neutral oligosaccharide‐alditols from respiratory‐mucus glycoproteins of a patient suffering from bronchiectasis

Oligosaccharide‐alditols derived from the respiratory mucins of a patient suffering from bronchiectasis were separated by HPLC into 46 fractions. The structures of 11 oligosaccharides with GlcNAcβ(1→3)Galβ(1→4)‐GlcNAcβ(1→6)GalNAc‐ol in common have been established (preceding paper in this journal). In this second part the structures of 12 oligosaccharides were established 8 of which have not been described before. Of the 12 compounds, 6 possess the GlcNAcβ(1→3)[Galβ(1→4)GlcNAcβ(1→6)]Galβ(1→3)GalNAc‐ol element: image The other compounds, that could not be classified on basis of a common structural element, are: image