GB961698A - Pregnen-acetic acid and preparation thereof - Google Patents

Pregnen-acetic acid and preparation thereof

Info

Publication number
GB961698A
GB961698A GB3967863A GB3967863A GB961698A GB 961698 A GB961698 A GB 961698A GB 3967863 A GB3967863 A GB 3967863A GB 3967863 A GB3967863 A GB 3967863A GB 961698 A GB961698 A GB 961698A
Authority
GB
United Kingdom
Prior art keywords
acetic acid
pregnen
preparation
hydrogen
compound
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
GB3967863A
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.)
Shionogi and Co Ltd
Original Assignee
Shionogi and Co 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 Shionogi and Co Ltd filed Critical Shionogi and Co Ltd
Publication of GB961698A publication Critical patent/GB961698A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J75/00—Processes for the preparation of steroids in general

Abstract

The invention comprises 3b -hydroxy-20-oxo-5a -16(17)-pregnen-16-acetic acid and the preparation thereof by oxidizing a compound of the formula: <FORM:0961698/C1/1> (wherein R and R1 are hydrogen atoms or acyl groups each containing at most 10 carbon atoms and R11 is hydrogen or an alkyl group of at most 10 carbon atoms) with chromic acid-acetic acid, hydrogen peroxide-acetic acid, potassium permanganate-acetic acid or ozone to obtain a compound of the formula: <FORM:0961698/C1/2> and then treating this with an alkali metal hydroxide. Examples are given. Specification 961,697 also is referred to.
GB3967863A 1960-12-19 1961-12-19 Pregnen-acetic acid and preparation thereof Expired GB961698A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5011660 1960-12-19

Publications (1)

Publication Number Publication Date
GB961698A true GB961698A (en) 1964-06-24

Family

ID=12850121

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1640063A Expired GB961697A (en) 1960-12-19 1961-12-19 Improvements in or relating to furostene derivatives and the intermediates thereof and processes for making them
GB3967863A Expired GB961698A (en) 1960-12-19 1961-12-19 Pregnen-acetic acid and preparation thereof

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1640063A Expired GB961697A (en) 1960-12-19 1961-12-19 Improvements in or relating to furostene derivatives and the intermediates thereof and processes for making them

Country Status (1)

Country Link
GB (2) GB961697A (en)

Also Published As

Publication number Publication date
GB961697A (en) 1964-06-24

Similar Documents

Publication Publication Date Title
GB984023A (en) 17-acetyl-16,17-secoandrost-9(11)-en-16-al derivatives and their preparation
GB961698A (en) Pregnen-acetic acid and preparation thereof
GB1094810A (en) Unsaturated 4,5-seco-steroid compounds, and processes for their preparation
GB965357A (en) Improvements in or relating to steroid compounds
ES421511A1 (en) Novel antiandrogenic compounds
GB973927A (en) Thiazolosteroids and production thereof
GB999875A (en) Pyrrocoline derivatives
GB1067346A (en) Novel seco-steroid compounds, processes for preparing them and compositions containing them
GB1082547A (en) Process for producing nitrosocyclohexane dimer
GB1018993A (en) Androsta [16,17-2,3]pyrane derivatives and production thereof
GB983607A (en) Novel 4,5-seco-steroid compounds and methods for the formation thereof
GB907813A (en) Improvements in or relating to steroids and the manufacture thereof
GB1047790A (en) Improvements in or relating to steroid compounds
GB979027A (en)
GB873951A (en) Improvements in or relating to a method of combating slime-forming micro-organisms in industrial water
GB957646A (en) New hydroxy-oestrane compounds
GB893923A (en) Movements in or relating to steroids and the manufacture thereof
ES254791A1 (en) Improvements in or relating to steroids
GB903394A (en) Cyclopentanophenanthrene compounds and process for their manufacture
ES478210A1 (en) A procedure for preparing derivatives of xantona. (Machine-translation by Google Translate, not legally binding)
GB1024903A (en) Novel homoveratryl amides
GB826533A (en) Naphthoquinone derivatives
GB995896A (en) New sulphanilamide derivatives and method for their production
GB900021A (en) Steroid compounds and their preparation
GB974155A (en) Process for the preparation of 2,6-diketo-8-thiapurines