JPS6251266B2 - - Google Patents

Info

Publication number
JPS6251266B2
JPS6251266B2 JP54169465A JP16946579A JPS6251266B2 JP S6251266 B2 JPS6251266 B2 JP S6251266B2 JP 54169465 A JP54169465 A JP 54169465A JP 16946579 A JP16946579 A JP 16946579A JP S6251266 B2 JPS6251266 B2 JP S6251266B2
Authority
JP
Japan
Prior art keywords
hydroxycholester
dienes
formula
reaction
previtamin
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.)
Expired
Application number
JP54169465A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5692268A (en
Inventor
Osamu Nishikawa
Kenji Ishimaru
Tooru Takeshita
Hideki Tsuruta
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP16946579A priority Critical patent/JPS5692268A/ja
Priority to DE8080303732T priority patent/DE3070985D1/de
Priority to DK447380A priority patent/DK160817C/da
Priority to CA000362937A priority patent/CA1160217A/en
Priority to EP80303732A priority patent/EP0028484B1/en
Publication of JPS5692268A publication Critical patent/JPS5692268A/ja
Priority to US06/371,870 priority patent/US4388243A/en
Publication of JPS6251266B2 publication Critical patent/JPS6251266B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP16946579A 1979-10-23 1979-12-27 Preparation of active vitamin d3 Granted JPS5692268A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP16946579A JPS5692268A (en) 1979-12-27 1979-12-27 Preparation of active vitamin d3
DE8080303732T DE3070985D1 (en) 1979-10-23 1980-10-22 Process for the preparation of active-type vitamin d3 compounds and of the cholesta-5,7-diene precursors, and products so obtained
DK447380A DK160817C (da) 1979-10-23 1980-10-22 Fremgangsmaade til fremstilling af vitamin d3 forbindelser
CA000362937A CA1160217A (en) 1979-10-23 1980-10-22 Process for the preparation of active-type vitamin d.sub.3 compounds
EP80303732A EP0028484B1 (en) 1979-10-23 1980-10-22 Process for the preparation of active-type vitamin d3 compounds and of the cholesta-5,7-diene precursors, and products so obtained
US06/371,870 US4388243A (en) 1979-10-23 1982-04-26 Process for the preparation of active-type vitamin D3 compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16946579A JPS5692268A (en) 1979-12-27 1979-12-27 Preparation of active vitamin d3

Publications (2)

Publication Number Publication Date
JPS5692268A JPS5692268A (en) 1981-07-25
JPS6251266B2 true JPS6251266B2 (enrdf_load_stackoverflow) 1987-10-29

Family

ID=15887063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16946579A Granted JPS5692268A (en) 1979-10-23 1979-12-27 Preparation of active vitamin d3

Country Status (1)

Country Link
JP (1) JPS5692268A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS5692268A (en) 1981-07-25

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