JPS5777696A - Preparation of condurango extract - Google Patents
Preparation of condurango extractInfo
- Publication number
- JPS5777696A JPS5777696A JP55153308A JP15330880A JPS5777696A JP S5777696 A JPS5777696 A JP S5777696A JP 55153308 A JP55153308 A JP 55153308A JP 15330880 A JP15330880 A JP 15330880A JP S5777696 A JPS5777696 A JP S5777696A
- Authority
- JP
- Japan
- Prior art keywords
- extract
- give
- extracted
- carbon tetrachloride
- lower alcohol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Medicines Containing Plant Substances (AREA)
- Compounds Of Unknown Constitution (AREA)
Abstract
PURPOSE: To obtain the titled extract having high antitumor activity, by extracting conducrango with a lower alcohol and a specific chlorinated hydrocarbon successively, subjecting the prepared extract to an open column, eluting it with a specified mixed solvent, reducing it, followed by fractionating by high-speed liquid chromatography.
CONSTITUTION: Condurango bark belonging to the family Marsdenia condurango Reichb is cut into thin pieces, extracted with a cold lower alcohol (e.g., methanol, etc.), and the extracted solution is concentrated to dryness to give an extract. This extract is extracted with a chlorinated hydrocarbon (e.g., chloroform etc.) except carbon tetrachloride to give an extracted solution, which is subjected to an open column, and an eluate eluted with a mixed solvent of the lower alcohol with the hydrocarbon except carbon tetrachloride, not to be eluted with the hydrocarbon except carbon tetrachloride is concentrated to give an extract. This extract is reduced with a reducing agent in methanol, and an fraction Fr-1 by high-speed chromatography is collected to give the desired extract.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55153308A JPS5777696A (en) | 1980-10-31 | 1980-10-31 | Preparation of condurango extract |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55153308A JPS5777696A (en) | 1980-10-31 | 1980-10-31 | Preparation of condurango extract |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5777696A true JPS5777696A (en) | 1982-05-15 |
Family
ID=15559637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55153308A Pending JPS5777696A (en) | 1980-10-31 | 1980-10-31 | Preparation of condurango extract |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5777696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494375A (en) * | 2020-11-24 | 2021-03-16 | 国珍健康科技（北京）有限公司 | Pinus massoniana bark extract and preparation method and application thereof |
-
1980
- 1980-10-31 JP JP55153308A patent/JPS5777696A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494375A (en) * | 2020-11-24 | 2021-03-16 | 国珍健康科技（北京）有限公司 | Pinus massoniana bark extract and preparation method and application thereof |
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