JPS57139029A - Preparation of diterpene alcohol - Google Patents

Preparation of diterpene alcohol

Info

Publication number
JPS57139029A
JPS57139029A JP2384481A JP2384481A JPS57139029A JP S57139029 A JPS57139029 A JP S57139029A JP 2384481 A JP2384481 A JP 2384481A JP 2384481 A JP2384481 A JP 2384481A JP S57139029 A JPS57139029 A JP S57139029A
Authority
JP
Japan
Prior art keywords
plant
extract
solvent
base
extract liquid
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.)
Granted
Application number
JP2384481A
Other languages
Japanese (ja)
Other versions
JPS646179B2 (en
Inventor
Akira Ogiso
Eiichi Kitazawa
Yoshiteru Kasuga
Osamu Oda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sankyo Co Ltd
Original Assignee
Sankyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sankyo Co Ltd filed Critical Sankyo Co Ltd
Priority to JP2384481A priority Critical patent/JPS57139029A/en
Publication of JPS57139029A publication Critical patent/JPS57139029A/en
Publication of JPS646179B2 publication Critical patent/JPS646179B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To separate the titled compound useful as a remedy for peptic ulcer, in high yield, by extracting a plant belonging to Croton genus with a solvent and treating the extract with a base or by extracting said plant with a solvent under basic conditions.
CONSTITUTION: A plant belonging to Croton genus is extracted with water or an organic solvent which is used usually for the extraction of plant components, and the extract liquid is subjected to the base treatment by adding an aqueous solution of an alkali bicarbonate, alkali carbonate or alkali hydroxide to the extract. As an alternative method, the plant is extracted under basic conditions with the above solvent mixed with said aqueous solution of base. By these extraction processes, the ester of the formulaI(at elast one of R1 and R2 is aliphatic acyl) existing in the extract liquid of the plant is hydrolyzed. The extract liquid is fractionated and separated according to the ordinary methods for the collection and separation of the neutral plant components, and the diterpene alcohol of formula II can be obtained in high yield.
COPYRIGHT: (C)1982,JPO&Japio
JP2384481A 1981-02-20 1981-02-20 Preparation of diterpene alcohol Granted JPS57139029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2384481A JPS57139029A (en) 1981-02-20 1981-02-20 Preparation of diterpene alcohol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2384481A JPS57139029A (en) 1981-02-20 1981-02-20 Preparation of diterpene alcohol

Publications (2)

Publication Number Publication Date
JPS57139029A true JPS57139029A (en) 1982-08-27
JPS646179B2 JPS646179B2 (en) 1989-02-02

Family

ID=12121706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2384481A Granted JPS57139029A (en) 1981-02-20 1981-02-20 Preparation of diterpene alcohol

Country Status (1)

Country Link
JP (1) JPS57139029A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5264638A (en) * 1990-06-14 1993-11-23 Chulalongkorn University Process for extraction and purification of plaunotol

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5270010A (en) * 1975-12-05 1977-06-10 Sankyo Co Ltd Preparation of diterpene alcohol

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5270010A (en) * 1975-12-05 1977-06-10 Sankyo Co Ltd Preparation of diterpene alcohol

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5264638A (en) * 1990-06-14 1993-11-23 Chulalongkorn University Process for extraction and purification of plaunotol

Also Published As

Publication number Publication date
JPS646179B2 (en) 1989-02-02

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term