[EN] 1,5 AND 1,4-ANHYDROKETOSES, METHODS FOR THE PREPARATION OF 1,5-AND 1,4-ANHYDROKETOSES, INTERMEDIATES, AND USES OF 1,5-AND 1,4-ANHYDROKETOSES<br/>[FR] 1,5- ET 1,4-ANHYDROCETOSES, PROCEDES DE PREPARATION DE 1,5- ET 1,4-ANHYDROCETOSES, INTERMEDIAIRES, ET UTILISATIONS DE 1,5- ET 1,4-ANHYDROCETOSES
申请人:GLYCOM APS
公开号:WO2005121114A2
公开(公告)日:2005-12-22
The present invention relates to 1,4- and 1,5-anhydro-D-ketoses (monosaccharides, oligosaccharides and various glycoconjugates), e.g. 1,5-anhydro-D-fructose. Moreover, the invention provides synthetic methods and novel intermediates and precursors suitable for their preparation. The methods include catalytic- and/or pyrolitic sulfenic acid elimination of corresponding ß-hydroxy sulfoxides, N-deprotection of N-substituted-aminoglycals, O-deprotection of carbohydrate enolethers and/or O-acyl-substituted carbohydrate enols, and regio- and stereoselective modification and subsequent chemical transformation of bicyclic and/or tricyclic 1,4- and 1,5-anhydro-glycoderivatives. Furthermore, the present invention provides novel applications of 1,4- and 1,5-anhydroketoses within pharmaceutical, food and cosmetic industries.
Synthesis of 1,4-anhydro-d-fructose and 1,4-anhydro-d-tagatose
作者:Gyula Dekany、Inge Lundt、Andreas J. Steiner、Arnold E. Stütz
DOI:10.1016/j.carres.2006.03.001
日期:2006.7
1,4-Anhydro-D-fructose and 1,4-anhydro-D-tagatose were prepared from 1,2-O-isopropylidene-D-glucofuranose via the common intermediate 3,5,6-tri-O-benzyl-D-glucitol. The title compounds may be interesting anti-oxidants and feature activities akin to their natural pyranoid counterpart, 1,5-anhydro-D-fructose. (c) 2006 Elsevier Ltd. All rights reserved.