Title: Process for preparation of highly pure acarbose
Application Number: 86108259 Application Date: 1986.12.13
Publication Number: 1012372 Publication Date: 1987.07.29
Approval Pub. Date: 1992.05.27 Granted Pub. Date: 1992.05.27
International Classifi-cation: A61K31/70;C07H3/08
Applicant(s) Name: Bayer AG Konzernverwaltung RP Address:
Inventor(s) Name: Erich Rauenbusch
Attorney & Agent: QI ZENGDU
Abstract:
    A purified acarbose which contains less than 10% by weight of sugar-like secondary components is obtained by column chromatograph of a solution of prepurified acarbose with a pH 4 to 7. The column contains as a packing material a weakly acid cation exchanger which has carboxyl groups and is based on dextran, agarose and cellulose or exchangers which are derived from the latter with the addition of polyamide.
Time: 8