CH210770A - Process for the preparation of an oxyketone ester of the androstane series. - Google Patents
Process for the preparation of an oxyketone ester of the androstane series.Info
- Publication number
- CH210770A CH210770A CH210770DA CH210770A CH 210770 A CH210770 A CH 210770A CH 210770D A CH210770D A CH 210770DA CH 210770 A CH210770 A CH 210770A
- Authority
- CH
- Switzerland
- Prior art keywords
- oxidizing agent
- ester
- preparation
- process according
- oxyketone
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane
-
- 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)
- Steroid Compounds (AREA)
Description
Verfahren zur Darstellung eines Oxyhetonesters der Androstanreihe. Es wurde gefunden, dass man zu einem Ogyketonester der Androstanreihe gelangen kann, wenn man auf ein Androstandiol- (3,17)-17-monopropionat der Formel
EMI0001.0007
ein Oxydationsmittel einwirken lässt.
Das so gewonnene Androstanol-(17)-on- (3)-propionat der Formel
EMI0001.0011
bildet farblose Kristalle vom F. 121-121,5'. Wie Versuche ergaben, gelingt es leicht, den Oxyketonester entweder durch direkte Kristallisation oder durch Bereitung schwer löslicher Derivate in reiner Form abzuschei den.
Solche schwer lösliche Derivate erhält man zum Beispiel durch Umsetzung des Oxy - ketonesters mit den üblichen Ketonreagen- zien wie Semicarbazid, Thiosemicarbazid, Hydroxylamin, Aminoguanidin, Phenylhydra- zinen,
neutralen oder basischen Acylhydrazi- den. Durch Einwirkung hydrolytisch wirken der Mittel werden die zwecks Reinigung des Oxyketonesters hergestellten Verbindungen wieder in ihre Komponenten gespalten.
Geeignete Oxydationsmittel sind zum Beispiel 6wertige Chromverbindungen wie Chromsäure in Eisessig, ferner Kupferoxyd, Permanganat und dergleichen.
Die erhaltene Verbindung zeichnet sich durch hohe Wirksamkeit am Kapaunenkamm und an der Samenblase aus. Sie ,soll thera- peutieche Verwendung finden. Beispiel:
Zu einer Lösung von<B>3,6</B> g Androstan-3- trans - 17 - trane - diol -17 - monopropionat in 50 cm' Eisessig gibt man in der Kälte eine solche von 1,0 g Chromtrioxyd in 30 cm' 90 ö iger Essigsäure und lässt das Ganze 24 Stunden bei Zimmertemperatur stehen. Dann wird mit 1 Liter Waseer verdünnt, das ausgefallene Produkt abgesaugt, mit Wasser nachgewaschen und getrocknet. :
Ulan erhält so das nach Umkristallisation aus Hexan bei 121-1291,5' schmelzende Andro- stanol-(17)-on-(3)-propionat, das sich zum Beispiel auch über das schwer lösliche Semi- carbazon isolieren und reinigen lässt.
Statt von der 3-trans-Verbindunb kann man ebensogut von der 3-cis-Verbindung aus gehen.
An Stelle von Chromsäure kann zur Oxy dation zum Beispiel auch Kupferoxyd Ver wendung finden.
Process for the preparation of an oxyhetonester of the androstane series. It has been found that an ogyketone ester of the androstane series can be obtained if one uses an androstanediol (3,17) -17-monopropionate of the formula
EMI0001.0007
allows an oxidizing agent to act.
The androstanol- (17) -one- (3) -propionate of the formula obtained in this way
EMI0001.0011
forms colorless crystals of F. 121-121.5 '. Experiments have shown that it is easy to separate the oxyketone ester in pure form either by direct crystallization or by preparing poorly soluble derivatives.
Such poorly soluble derivatives are obtained, for example, by reacting the oxy ketone ester with the usual ketone reagents such as semicarbazide, thiosemicarbazide, hydroxylamine, aminoguanidine, phenylhydrazines,
neutral or basic acylhydrazides. When the agents act hydrolytically, the compounds produced for the purpose of cleaning the oxyketone ester are split back into their components.
Suitable oxidizing agents are, for example, hexavalent chromium compounds such as chromic acid in glacial acetic acid, and also copper oxide, permanganate and the like.
The compound obtained is characterized by its high effectiveness on the capon comb and on the seminal vesicle. It should be used therapeutically. Example:
To a solution of <B> 3.6 </B> g androstane-3-trans-17-trane-diol -17-monopropionate in 50 cm 'glacial acetic acid, a solution of 1.0 g chromium trioxide in 30 is added in the cold cm '90 ° acetic acid and leave the whole thing for 24 hours at room temperature. It is then diluted with 1 liter of water, and the precipitated product is filtered off with suction, washed with water and dried. :
Ulan thus receives the androstanol- (17) -one- (3) -propionate, which melts at 121-1291.5 'after recrystallization from hexane and which can also be isolated and purified, for example, via the sparingly soluble semicarbazone.
Instead of the 3-trans connection one can just as well start from the 3-cis connection.
Instead of chromic acid, for example, copper oxide can also be used for oxidation.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH208082T | 1935-06-18 | ||
CH210770T | 1935-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH210770A true CH210770A (en) | 1940-07-31 |
Family
ID=25724488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH210770D CH210770A (en) | 1935-06-18 | 1935-06-18 | Process for the preparation of an oxyketone ester of the androstane series. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH210770A (en) |
-
1935
- 1935-06-18 CH CH210770D patent/CH210770A/en unknown
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