CH193543A - Process for the preparation of 17-ethyl-cis-androstandiol-3,17. - Google Patents
Process for the preparation of 17-ethyl-cis-androstandiol-3,17.Info
- Publication number
- CH193543A CH193543A CH193543DA CH193543A CH 193543 A CH193543 A CH 193543A CH 193543D A CH193543D A CH 193543DA CH 193543 A CH193543 A CH 193543A
- Authority
- CH
- Switzerland
- Prior art keywords
- ethyl
- cis
- androstandiol
- preparation
- formula
- Prior art date
Links
Landscapes
- Steroid Compounds (AREA)
Description
Verfahren zur Darstellung von 17-Äthyl-cis-androstandiol-3,17. (Degenstand der vorliegenden Erfindung ist ein Verfahren zur Darstellung von 17 Äthyl-cis-aridrostandiol-3,17, welches dadurch gekennzeichnet ist, dass man cis-Aridrostanol- 3-on-17 der Formel CioHso0a, das sogenannte Androsteron, mit einer für die Umwandlung von Ketonen in Äthylkarbinole geeigneten metallorganischen Verbindung, beispielsweise nach der Methode von Grignard mit Äthyl- magnesiumjodid,
umsetzt und das dabei ge bildete Umsetzungsprodukt mit Hilfe hydro- lysierend wirkender Mittel aufspaltet. Bei der Aufarbeitung des Reaktionsgemisches erhält man dann 17-Äthyl-cis-androstandiol-3,17 der Formel C2iH8602 in kristalliner Form.
Das erfindungsgemässe Verfahren sei im folgenden anhand beispielsweise gegebener Formelbilder veranschaulicht:
EMI0001.0015
Die für das vorliegende Verfahren in Be tracht kommenden, für die Umwandlung von Ketonen in Äthylkarbinole geeigneten metall organischen Verbindungen sind in ihrer Ver- wendungsweise, z. B. beschrieben in Houben- Weyl, Methoden der organ. Chemie, 3. Band, 2. Aufl. (1923) S. 61 ff.
Beispiel: 1 g Androsteron wird in 70 cm' abso lutem Äther gelöst und mit einer Grignard- lösung, bestehend aus 1 g Magnesium und 8 g Äthyljodid in 50 ein<B>'</B> Äther, versetzt. Das Re aktionsgemisch wird darauf einige Stunden zum schwachen Sieden erhitzt, danach unter Zu satz von Eis mit Salzsäurelösung zersetzt.
Die ätherische Lösung wird dann mit Semi- carbazid-acetatlösung versetzt, das dabei ge bildete, in Äther schwer lösliche Semicarba- zon des nicht umgesetzten Anteils des Andro- sterons wird abgetrennt. Die verbliebene ätherische Lösung liefert beim Einengen das 17-Äthyl-cis-aridrostandiol, das nach dem Umkristallisieren und Sublimieren im Hoch vakuum einen Schmelzpunkt von etwa 143 0 zeigt.
Das verfahrensgemäss erhältliche Reak tionsprodukt ist neu: Es besitzt im Hahnen- kammtest gegenüber dem Androsteron der Formel C19H8002 eine erhöhte physiologische Wirksamkeit.
Process for the preparation of 17-ethyl-cis-androstandiol-3,17. (The subject of the present invention is a method for the preparation of 17 ethyl-cis-aridrostandiol-3,17, which is characterized in that cis-aridrostanol-3-one-17 of the formula CioHso0a, the so-called androsterone, with a for the Conversion of ketones into organometallic compounds suitable for ethyl carbinols, for example according to the Grignard method with ethyl magnesium iodide,
converts and splits the reaction product formed with the aid of hydrolyzing agents. When the reaction mixture is worked up, 17-ethyl-cis-androstandiol-3,17 of the formula C2iH8602 is obtained in crystalline form.
The method according to the invention is illustrated below using, for example, given formula images:
EMI0001.0015
The coming into consideration for the present process, suitable for the conversion of ketones into ethyl carbinols are organometallic compounds in their mode of use, eg. B. described in Houben-Weyl, Methods of organ. Chemie, Volume 3, 2nd edition (1923) pp. 61 ff.
Example: 1 g of androsterone is dissolved in 70 cm of absolute ether and mixed with a Grignard solution consisting of 1 g of magnesium and 8 g of ethyl iodide in a <B> '</B> ether. The reaction mixture is then heated to a gentle boil for a few hours, then decomposed with hydrochloric acid solution with the addition of ice.
The ethereal solution is then mixed with semicarbazide acetate solution, the semicarbazone formed in the process, which is sparingly soluble in ether, of the unreacted portion of the androsterone is separated off. The remaining ethereal solution provides the 17-ethyl-cis-aridrostandiol on concentration, which after recrystallization and sublimation in a high vacuum shows a melting point of about 143 °.
The reaction product available according to the process is new: in the Hahnenkamm test it has an increased physiological effectiveness compared to the androsterone of the formula C19H8002.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE193543X | 1933-10-21 | ||
CH189749T | 1936-11-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH193543A true CH193543A (en) | 1937-10-15 |
Family
ID=25721859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH193543D CH193543A (en) | 1933-10-21 | 1934-10-20 | Process for the preparation of 17-ethyl-cis-androstandiol-3,17. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH193543A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2713062A (en) * | 1952-08-08 | 1955-07-12 | Schering Ag | 3-methyl-17-ethinyl androstandiols |
-
1934
- 1934-10-20 CH CH193543D patent/CH193543A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2713062A (en) * | 1952-08-08 | 1955-07-12 | Schering Ag | 3-methyl-17-ethinyl androstandiols |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CH193543A (en) | Process for the preparation of 17-ethyl-cis-androstandiol-3,17. | |
CH193541A (en) | Method for the preparation of 17-ethyl-dihydro-follicle hormone. | |
CH189749A (en) | Method for the preparation of 17-methyl-dihydrofollicle hormone. | |
CH193542A (en) | Process for the preparation of 17-methyl-cis-androstandiol-3,17. | |
CH194985A (en) | Process for the preparation of 17-ethyl-trans-androstandiol-3,17. | |
CH194987A (en) | Process for the preparation of 5,6-17-methyl-trans-androstenediol-3,17. | |
DE651613C (en) | Process for the production of optically active trans-ªð-oxycamphor | |
DE576712C (en) | Process for the preparation of a double salt of ª ‰ -Bromaethyltrimethylammonium | |
DE875516C (en) | Process for the preparation of therapeutically valuable compounds of the androstane series which are unsaturated in the 4,5 position | |
CH194989A (en) | Process for the preparation of 5,6-17-ethyl-trans-3,17-androstenediol. | |
DE953976C (en) | Process for the preparation of sterically uniform 17-methyloestradiol | |
DE878822C (en) | Process for the preparation of triaminotriarylmethane dyes | |
DE875657C (en) | Process for the preparation of 16, 17-diketones of the oestran and androstane series | |
DE686759C (en) | andions | |
DE698910C (en) | gmasterin | |
DE665549C (en) | Process for the production of male and corpus luteum hormone-active substances | |
CH194986A (en) | Process for the preparation of 17-ethyl-trans-androstandiol-3,17. | |
CH194982A (en) | Process for the preparation of 17-ethyl-cis-androstandiol-3,17. | |
CH197780A (en) | Process for the pure preparation of keto group-containing derivatives of cyclopentanophenanthrole compounds. | |
DE473519C (en) | Procedure for the representation of ureides | |
CH194993A (en) | Method for the preparation of cis-Androstandiol-3,17. | |
CH194984A (en) | Process for the preparation of 17-methyl-trans-androstandiol-3,17. | |
CH194992A (en) | Method for the preparation of dihydrofollicle hormone. | |
CH194988A (en) | Process for the preparation of 5,6-17-methyl-trans-androstenediol-3,17. | |
CH194876A (en) | Process for the preparation of 2 (3 ', 5'-Diiodo-2'-B-oxethyl-4'-oxypheny) - 6-iodoquinoline-4-carboxylic acid. |