Method of high effect preparing rhoxadunol

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Patent number: CN1534032
Publication date: 2004-10-06
Inventor: ZU YUANGANG (CN); XUE YANHUA (CN); SHI QUAN (CN)
Applicant: DONGBEI UNIV OF FORESTRY (CN)
Classification:
- international: C07D305/14
- european:
Application number: CN200410013559 20040218
Priority number(s): CN200410013559 20040218
Abstract of CN1534032
A process for effectively preparing the taxol includes homogenizing fresh raw material, cavitation, biological semisynthesis, culturing, concentrating and drying organic phase, filtering water phase to obtain filtrate, adding dregs to menstruum, solid-liquid extracting, collecting the liquid extract, concentrating, mixing with said dried organic phase and filtrate, adding citric acid and gall, negative-pressure cavitation treating, freeze concentrating, dissolving it in methanol, adding it to acetonitrile, centrifugal treating, decoloring, extracting by ethyl acetate, water washing, vacuum concentrating, dissolving in acetonitrile, depositing 10-deacetyl baccharine III, concentrating mother liquid, chromatography and recrystallizing.
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