Introduction of a carboxyl group through an acetal as a new route to carboxylic acid derivatives of sugars
摘要:
A new class of carboxylic acid derivatives of sugars is described. Acetalation of mono- and disaccharides with a functionalized vinylic ether or a diethoxybutanoate afforded mono- and diacetals bearing an ester group. Their saponification led to the corresponding carboxylic acid acetals in which the length of the acetal side chain can be modulated. (C) 1999 Elsevier Science Ltd. All rights reserved.
Compounds of the formula ##STR1## where A, B, E and D have the meanings indicated in the description, and their preparation are described. The substances are suitable for controlling diseases.