Original document(10 pages) Authorized document(8 pages) 中文版
    The present invention relates to a method for preparing ginsenoside ture aglycone 20(R)-PPD, 20(S)-PPD, 20(R)-PPT and 20(S)-PPT by using low polarity ginsenoside raw material whose 3-position hydroxyl group, 6-position hydroxyl group or 20-position hydroxyl group is free or intermediate product. Said method includes the steps of removing glycosyl and product separation and purification, etc. The glycosyl-removing method includes the procedures of catalytic pyrolysis, selective dehydration, acid hydrolysis and alkali hydrolysis, and its separation and purification method adopts conventional process.
Application Number
申请号		 02144773 Application Date
申请日		 2002.12.13
Title 名称 Method for preparing true aglycone of ginseng saponin
Publication Number
公开号		 1508144 Publication Date
公开日		 2004.06.30
Approval Pub. Date 2006.04.05 Granted Pub. Date 2006.04.05
International Classification 分类号 C07J9/00
Applicant(s) Name
申请人		 Dalian Chemical Physics Inst., Chinese Academy of Sciences
Address 地址 116023
Inventor(s) Name 发明人 Yang Ling, He Kejiang
Attorney & Agent 代理人 zhang chen

  
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