JPS54112848A - Preparation of 3beta-hydroxy-24-oxo-5alpha-cholestane-5-ene - Google Patents

Preparation of 3beta-hydroxy-24-oxo-5alpha-cholestane-5-ene

Info

Publication number
JPS54112848A
JPS54112848A JP13986977A JP13986977A JPS54112848A JP S54112848 A JPS54112848 A JP S54112848A JP 13986977 A JP13986977 A JP 13986977A JP 13986977 A JP13986977 A JP 13986977A JP S54112848 A JPS54112848 A JP S54112848A
Authority
JP
Japan
Prior art keywords
formula
compound
cholestane
oxo
5alpha
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
JP13986977A
Other languages
Japanese (ja)
Other versions
JPS613360B2 (en
Inventor
Osamu Nishikawa
Kenji Ishimaru
Toru 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.)
RES INST MEDICINE CHEM Inc
Teijin Ltd
Research Institute for Medicine and Chemistry Inc
Original Assignee
RES INST MEDICINE CHEM Inc
Teijin Ltd
Research Institute for Medicine and Chemistry Inc
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 RES INST MEDICINE CHEM Inc, Teijin Ltd, Research Institute for Medicine and Chemistry Inc filed Critical RES INST MEDICINE CHEM Inc
Priority to JP13986977A priority Critical patent/JPS54112848A/en
Publication of JPS54112848A publication Critical patent/JPS54112848A/en
Publication of JPS613360B2 publication Critical patent/JPS613360B2/ja
Granted legal-status Critical Current

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  • Steroid Compounds (AREA)

Abstract

PURPOSE: To obtain the title compound useful as an intermediate for preparing active vitamin D3 analogs simply in high yield at low cost, by reacting 3α, 6α- dihydroxy-24-oxo-5β-cholestane with a halogenated sulfonyl compound.
CONSTITUTION: 3α, 6α-Dihydroxy-24-oxo-5β-cholestane of formula I is reacted with a halogenated sulfonyl compound of the formula R-SO2-X (R is lower alkyl or group of formula II; X is halogen) in a basic organic compound, e.g. pyridine or s- collidine, at 5W30°C to give a compound of formula III, which is reacted with a metal acetate, e.g. an alkali metal, such as sodium or potassium, salt of acetic acid, in a polar solvent, e.g. acetic acid, and, if necessary, hydrolyzed to form the compound of formula IV: (R1 is H or acetyl group).
COPYRIGHT: (C)1979,JPO&Japio
JP13986977A 1977-11-24 1977-11-24 Preparation of 3beta-hydroxy-24-oxo-5alpha-cholestane-5-ene Granted JPS54112848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13986977A JPS54112848A (en) 1977-11-24 1977-11-24 Preparation of 3beta-hydroxy-24-oxo-5alpha-cholestane-5-ene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13986977A JPS54112848A (en) 1977-11-24 1977-11-24 Preparation of 3beta-hydroxy-24-oxo-5alpha-cholestane-5-ene

Publications (2)

Publication Number Publication Date
JPS54112848A true JPS54112848A (en) 1979-09-04
JPS613360B2 JPS613360B2 (en) 1986-01-31

Family

ID=15255440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13986977A Granted JPS54112848A (en) 1977-11-24 1977-11-24 Preparation of 3beta-hydroxy-24-oxo-5alpha-cholestane-5-ene

Country Status (1)

Country Link
JP (1) JPS54112848A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01179861A (en) * 1988-01-08 1989-07-17 Rinnai Corp Hot air space heater
JPH0342960U (en) * 1989-08-31 1991-04-23

Also Published As

Publication number Publication date
JPS613360B2 (en) 1986-01-31

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