Title:
PREPARATION OF 20-$G(B)-D-PYRANOGLUCOSYL-PROTOPANAXADIOL BY ENZYMATIC HYDROLYSIS OF GINSENOSIDE
Document Type and Number:
WIPO Patent Application WO/2003/040383
Kind Code:
A1
Abstract:
A process for preparing 20-$g(b)-D-pyranoglucosyl-protopanaxadiol by enzymatic hydrolysis of ginsenoside, which comprises steps of hydrolysis, collection and is caracterized in glycosyl in the molecular of diol type of ginsenoside being site-directed excising by snail-enzyme to generate objective compound 20-$g(b)-D-pyranoglucosyl-protopanaxadiol snail-enzyme used in the present invention is available conveniently and cheap. The process for preparing C-K is simple, convenient, low-cost, and high yield. it can satisfy the need of preparing anti-tumor drug.
Inventors:
YANY LING (CN)
HE KE-JIANG (CN)
YANG YI (CN)
LUAN HONG-WEI (CN)
HE KE-JIANG (CN)
YANG YI (CN)
LUAN HONG-WEI (CN)
Application Number:
PCT/CN2002/000786
Publication Date:
May 15, 2003
Filing Date:
November 05, 2002
Export Citation:
Assignee:
DALIAN CHEMICAL PHYSICS INST (CN)
YANY LING (CN)
HE KE-JIANG (CN)
YANG YI (CN)
LUAN HONG-WEI (CN)
YANY LING (CN)
HE KE-JIANG (CN)
YANG YI (CN)
LUAN HONG-WEI (CN)
International Classes:
C12P19/44; C12P33/00; (IPC1-7): C12P19/44
Foreign References:
| CN1184851A | 1998-06-17 | |||
| CN1190098A | 1998-08-12 | |||
| JPH0648946A | 1994-02-22 |
Attorney, Agent or Firm:
CHINA TRADEMARK & PATENT LAW OFFICE (14 Yuetan Nanjie Xichengqu Yuexin Bld. Beijing 5, CN)
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