JPS5265262A - Synthesis of 1alpha acyloxy-provitamine d compounds - Google Patents

Synthesis of 1alpha acyloxy-provitamine d compounds

Info

Publication number
JPS5265262A
JPS5265262A JP14121375A JP14121375A JPS5265262A JP S5265262 A JPS5265262 A JP S5265262A JP 14121375 A JP14121375 A JP 14121375A JP 14121375 A JP14121375 A JP 14121375A JP S5265262 A JPS5265262 A JP S5265262A
Authority
JP
Japan
Prior art keywords
provitamine
acyloxy
compounds
1alpha
synthesis
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
Application number
JP14121375A
Other languages
Japanese (ja)
Inventor
Toshio Wakabayashi
Toru Takeshita
Yoshio Ishimoto
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 JP14121375A priority Critical patent/JPS5265262A/en
Publication of JPS5265262A publication Critical patent/JPS5265262A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: 1α-Acyloxy-provitamine D compounds,useful as intermediate of active vitamine D3 or the like, are obtained in high yield by bromination of cholesterol derivatives followed by dehydrobromination in the presence of a specific compound.
COPYRIGHT: (C)1977,JPO&Japio
JP14121375A 1975-11-27 1975-11-27 Synthesis of 1alpha acyloxy-provitamine d compounds Pending JPS5265262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14121375A JPS5265262A (en) 1975-11-27 1975-11-27 Synthesis of 1alpha acyloxy-provitamine d compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14121375A JPS5265262A (en) 1975-11-27 1975-11-27 Synthesis of 1alpha acyloxy-provitamine d compounds

Publications (1)

Publication Number Publication Date
JPS5265262A true JPS5265262A (en) 1977-05-30

Family

ID=15286760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14121375A Pending JPS5265262A (en) 1975-11-27 1975-11-27 Synthesis of 1alpha acyloxy-provitamine d compounds

Country Status (1)

Country Link
JP (1) JPS5265262A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4862750A (en) * 1971-12-02 1973-09-01
JPS4995956A (en) * 1973-01-10 1974-09-11
JPS5330708A (en) * 1976-09-02 1978-03-23 Agency Of Ind Science & Technol Cooling device for electric rotary machine
JPS5330709A (en) * 1976-08-17 1978-03-23 Westinghouse Electric Corp Superconductive rotary machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4862750A (en) * 1971-12-02 1973-09-01
JPS4995956A (en) * 1973-01-10 1974-09-11
JPS5330709A (en) * 1976-08-17 1978-03-23 Westinghouse Electric Corp Superconductive rotary machine
JPS5330708A (en) * 1976-09-02 1978-03-23 Agency Of Ind Science & Technol Cooling device for electric rotary machine

Similar Documents

Publication Publication Date Title
JPS52128210A (en) Preparation of soft capsule for 1alpha-hydroxyvitamind derivatives
JPS5271456A (en) Synthesis of 1alpha-hydroxysteroid derivatives
JPS5265262A (en) Synthesis of 1alpha acyloxy-provitamine d compounds
JPS5242864A (en) Process for preparation of 1x, 24-dihydroxycholecalciferol
JPS5233624A (en) Preparation of leucylnitroagmatines
JPS5227782A (en) Preparation of uridine derivatives
JPS5225792A (en) Process for preparing 3-hydroxy-3-methyl cephalosporin derivatives
JPS5265261A (en) Synthesis of 1alpha-hyaroxy-provitamine d compounds
JPS51122053A (en) A process for preparing 3beta - hydroxycholesta-5,7-diene
JPS5231093A (en) Preparation of 3- methylenecephalosporanic acid derivatives
JPS5223067A (en) Novel synthesis of 2-aminomethyl-1- ethylpyrrolidine
JPS5271500A (en) Purification of colesterol
JPS5271490A (en) Synthesis of 2-hydrocarbylidene-cephem detivatives
JPS525782A (en) Preparation of 1-phthalazinone
JPS5248670A (en) Preparation of 2,5-disubstituted-pyridine derivatives
JPS53120216A (en) Fet self-excited mixer circuit
JPS5271458A (en) Synthesis of 1alpha-acyloxyprovitamine d compounds
JPS5223069A (en) Preparation of 3-substituted-pyrrole derivatives
JPS5265274A (en) Synthesis of pyridine derivatives
JPS5242892A (en) Preparation of 1beta h, 13alpha h-9-oxabicyclo 11,3,0 hexadeca-3-ene derivative s
JPS5289676A (en) Preparation of xanthone compounds
JPS51120994A (en) Method for production of tungsten chloride
JPS5239665A (en) Process for preparing perfluorolactones
JPS5251386A (en) Preparaton of -cephalosporanic acid derivatives
JPS5231090A (en) Preparation of 3-substitutedmethyl-3- cephem derivatives