JPS6258352B2 - - Google Patents

Info

Publication number
JPS6258352B2
JPS6258352B2 JP54137771A JP13777179A JPS6258352B2 JP S6258352 B2 JPS6258352 B2 JP S6258352B2 JP 54137771 A JP54137771 A JP 54137771A JP 13777179 A JP13777179 A JP 13777179A JP S6258352 B2 JPS6258352 B2 JP S6258352B2
Authority
JP
Japan
Prior art keywords
reaction
dihydroxy
solution
group
concentrated
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
JP54137771A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5661351A (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 JP13777179A priority Critical patent/JPS5661351A/ja
Publication of JPS5661351A publication Critical patent/JPS5661351A/ja
Publication of JPS6258352B2 publication Critical patent/JPS6258352B2/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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
JP13777179A 1979-10-26 1979-10-26 1alpha,25-dihydroxy-24-oxocholecalciferols and their preparation Granted JPS5661351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13777179A JPS5661351A (en) 1979-10-26 1979-10-26 1alpha,25-dihydroxy-24-oxocholecalciferols and their preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13777179A JPS5661351A (en) 1979-10-26 1979-10-26 1alpha,25-dihydroxy-24-oxocholecalciferols and their preparation

Publications (2)

Publication Number Publication Date
JPS5661351A JPS5661351A (en) 1981-05-26
JPS6258352B2 true JPS6258352B2 (forum.php) 1987-12-05

Family

ID=15206439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13777179A Granted JPS5661351A (en) 1979-10-26 1979-10-26 1alpha,25-dihydroxy-24-oxocholecalciferols and their preparation

Country Status (1)

Country Link
JP (1) JPS5661351A (forum.php)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6067423A (ja) * 1983-09-22 1985-04-17 Teijin Ltd 脱腫瘍剤

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5622763A (en) * 1979-08-02 1981-03-03 Teijin Ltd 25-hydroxy-24-oxovitamin d3, or its hydroxyl-protecting derivative and its preparation

Also Published As

Publication number Publication date
JPS5661351A (en) 1981-05-26

Similar Documents

Publication Publication Date Title
CN115884978A (zh) 制备胆酸衍生物的方法及其原料
EP0418925B1 (en) Method of producing (S)-4-hydroxymethyl-gamma-lactone
EP3906247A1 (en) Synthesis of cholesterol and vitamin d3 from phytosterols
US4388243A (en) Process for the preparation of active-type vitamin D3 compounds
JPS591278B2 (ja) ７−デヒドロコレステロ−ル誘導体及びその製造方法
Marshall et al. Stereoselective synthesis of cycloalkene-fused butyrolactones via cyclopropylcarbinol solvolysis
WO2001064701A1 (fr) Procede de preparation de flavonoides
Schaaf et al. Total synthesis of prostaglandins F1. alpha. and E1
JPS6258351B2 (forum.php)
DK158989B (da) Cholestadienderivat, der kan anvendes som mellemprodukt til brug ved fremstillingen af homovitamin-d3-derivater
JPS5823660A (ja) １α―ヒドロキシビタミンＤまたは１α―ヒドロキシ―プレビタミンＤ化合物の製造方法
Tachibana A convenient synthesis of 1. ALPHA.-hydroxyvitamin D2.
Rao et al. Synthesis of [4.4. 5.5] fenestrane
US4298537A (en) Process for producing steroid compounds having an oxo group in the side chain
US4181683A (en) 1,7-Octadien-3-one and process for preparing the same
JPH0437074B2 (forum.php)
JPS6148499B2 (forum.php)
JPS6148500B2 (forum.php)
JP2975704B2 (ja) ステロイド誘導体
JPS6241599B2 (forum.php)
JPS6228952B2 (forum.php)
JP2714392B2 (ja) ステロイド誘導体の製造法
JP2975705B2 (ja) ステロイド誘導体
JPS6246552B2 (forum.php)
JP2953665B2 (ja) ステロイド誘導体の製造方法