GB749200A - Pregnadienes - Google Patents

Pregnadienes

Info

Publication number
GB749200A
GB749200A GB23628/53A GB2362853A GB749200A GB 749200 A GB749200 A GB 749200A GB 23628/53 A GB23628/53 A GB 23628/53A GB 2362853 A GB2362853 A GB 2362853A GB 749200 A GB749200 A GB 749200A
Authority
GB
United Kingdom
Prior art keywords
hydroxy
pregnadiene
compound
acyloxy
dione
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
GB23628/53A
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.)
Pharmacia and Upjohn Co
Original Assignee
Upjohn Co
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 Upjohn Co filed Critical Upjohn Co
Publication of GB749200A publication Critical patent/GB749200A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J13/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having a carbon-to-carbon double bond from or to position 17
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J75/00—Processes for the preparation of steroids in general

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention comprises a compound having the formula: <FORM:0749200/IV(a)/1> wherein R is a hydrogen atom or an acyl radical of a hydrocarbon carboxylic acid containing from one to eight carbon atoms, inclusive, and the preparation of the 21-acyloxy compound by oxidation of an 11-hydroxy-21-lower acyloxy-4,17(20)-pregnadiene-3-one by means of an oxidizing agent capable of converting an 11b -hydroxy group to an 11-keto group, e.g. N-bromoacetamide, N-bromosuccinimide or N-chlorosuccinimide in pyridine or chromic acid in acetic acid, and of the corresponding 21-hydroxy compound by hydrolysis or saponification of a 21-acyloxy-4,17(20)-pregnadiene-3,11-dione. Examples describe the production of 21-acetoxy and 21-hydroxy-4,17(20)-pregnadiene-3,11-dione. Specifications 733,448, 749,195, 749,198, 749,199 and 749,201 are referred to.
GB23628/53A 1952-08-30 1953-08-26 Pregnadienes Expired GB749200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US749200XA 1952-08-30 1952-08-30

Publications (1)

Publication Number Publication Date
GB749200A true GB749200A (en) 1956-05-23

Family

ID=22122444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23628/53A Expired GB749200A (en) 1952-08-30 1953-08-26 Pregnadienes

Country Status (1)

Country Link
GB (1) GB749200A (en)

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