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Updated: Jun 20, 2026

Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
Access to ring-expanded analogues of 2-amino sugars
1Department of Chemistry, University of Connecticut, 55 North Eagleville Road U-3060, Storrs, Connecticut 06269, USA.
Abstract:
Ring-expanded 2-N-acetylamino sugar analogs of D-glucose, D-galactose, and D-mannose have been prepared by a new synthetic route. Aspects of the highly substituted alpha-amino aldehyde intermediates made them central to the approach. First, they were accessed via diastereoselective addition of a vinyl Grignard onto protected glycosyl amines. Also, the sterics of the bis-protected amine favored the formation of only one glycoside anomer. The new analogues reported here should prove useful in the development of tools to investigate the role of 2-amino sugars in biology.
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