Title: Method for preparing quasi-ginsenoside P11
Application Number: 99122505 Application Date: 1999.11.08
Publication Number: 1251369 Publication Date: 2000.04.26
Approval Pub. Date: Granted Pub. Date: 2004.08.11
International Classifi-cation: C07J17/00
Applicant(s) Name: Shenyang Medicine Univ. Address: 110015
Inventor(s) Name: Li Xi, Wang Jinhui
Attorney & Agent: li yutong
Abstract:
     The preparation method of pseudoginsenoside F11, suitable for industrial production, adopts the following steps: using water (or dilute alcohol) to extract American ginseng stem and leaf; n-butanol-water liquid-liquid extraction (or alcohol precipitation) of extract; making the n-butanol extracted portion (or aqueous solution produced after precipitation) is conducted macroporous resin and water elution to remove sugar and protein, and alcohol washing to obtain total saponin; then using silica gel chromatography to treat said total saponin to obtain crude product of said compound; finally, refining said crude product by utilizing methanol recrystallization (or high-performance liquid chromatography) to obtain the invented product.
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