Large-Scale Preparation of N, N'-Diacetylchitobiose by Enzymic Degradation of Chitin and its Chemical Modifications

Abstract Hundred gram quantities of peracetylated chitobiose were prepared by degradation of colloidal chitin with commercially available chitinase (EC 3.2.1.14) from Streptomyces griseus and subsequent acetylation, the product being readily convertible into N, N'-diacetylchitobiose by conventional de-O-acetylation. These chitobiose derivatives were subjected to further chemical modifications to give novel disaccharide derivatives composed of a pair of 2-acetamido-2-deoxy-D-allopyranose moieties that are potential intermediates for the synthesis of an enzyme inhibitor.

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