Crystal structure of N-(tri-O-acetyl-α-d-xylopyranosyl)pyridinium bromide

The structure of N-(2,3,4-tri-O-acetyl-α-d-xylopyranosyl)pyridinium bromide was determined by X-ray crystallography and 1H NMR spectroscopy. Two xylopyranosyl moieties crystallize with three water molecules and there is a novel pattern of Br− and H2O contacts. Both xylopyranosyl rings in the asymmetric unit have the 1C4 conformation, with all three axial O-Ac groups.