CH200478A - Process for the preparation of a new therapeutically effective amidine. - Google Patents
Process for the preparation of a new therapeutically effective amidine.Info
- Publication number
- CH200478A CH200478A CH200478DA CH200478A CH 200478 A CH200478 A CH 200478A CH 200478D A CH200478D A CH 200478DA CH 200478 A CH200478 A CH 200478A
- Authority
- CH
- Switzerland
- Prior art keywords
- ether
- reaction
- hydrochloride
- methoxy
- therapeutically effective
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines neuen therapeutisch wirkeamen Amidines. Es wurde gefunden, dass man zu einem neuen, therapeutisch wirksamen Amidin ge langen kann, wenn man einen 2-Methoxy- phenoxy-acetimidoäther mit Ammoniak um setzt.
Das so gewonnene 2-Methoxy-phenoxy- äthenylamidin der Formel:
EMI0001.0010
bildet ein Hydrochlorid vom F. 114 bis 116 , das sich leicht in Wasser löst.
Die neue Verbindung soll therapeutisch Verwendung finden.
<I>Beispiel:</I> Man leitet Salzsäuregas in ein gekühltes Gemisch äquimolarer Mengen von Alkohol und 2-3Vlethoxyphenoxyacetonitril (KP., 115 bis<B>117</B> , hergestellt z.
B. durch Umsetzung von Chloracetonitril mit Brenzcatechinmono- methyläther in Gegenwart von säurebinden- den Mitteln) ein und verreibt das ent standene 2-Methoxy-phenoxyacetimidoäthyl- äther-hydrochlorid mit einem indifferenten Lösungsmittel wie Petroläther, Äther oder Benzol.
Man erhält es in Form eines farb losen, feuchtigkeitsempfindlichen Kristall pulvers. 24,5 Teile 2-Methoxyphenoxyacet- imidoäthyläther-hydrochlorid, aus dem sich während der Umsetzung 2-Methoxy-phenoxy- acetimidoäthyläther bildet, werden mit einer alkoholischen Lösung von 2,
2 Teilen Am moniak bis zum Verschwinden des zunächät entstehenden Ammonchlorids geschüttelt. So dann wird der Alkohol abdestilliert und der Rückstand aus Aceton umkristallisiert. Man erhält so das 2-Methoxy-phenoxyäthenyla-ni- din-hydrochlorid als farbloses Kristallpulver, aus dem sich mittels Alkalien die freie Base gewinnen lässt.
Statt von 2-Methoxy-phenoxyacetimido- äthyIäther kann man ebensogut auch von einem andern Äther, wie z. B. vom Methyl-. Propyl- oder Butyläther ausgehen. An Stelle des salzsauren Salzes des 2- 1Vlethoxy -phenoxyacetimidoäthyläthers kann auch die freie Base selbst oder ein anderes Salz, wie z. B. das Hydrobromid oder das schwefelsaure Salz, Verwendung finden.
Process for the production of a new therapeutically active amidine. It has been found that a new, therapeutically effective amidine can be obtained if a 2-methoxyphenoxyacetimidoether is implemented with ammonia.
The 2-methoxy-phenoxy-ethenylamidine of the formula:
EMI0001.0010
forms a hydrochloride with a melting point of 114 to 116, which dissolves easily in water.
The new compound is intended to be used therapeutically.
<I> Example: </I> Hydrochloric acid gas is passed into a cooled mixture of equimolar amounts of alcohol and 2-3Vlethoxyphenoxyacetonitril (KP., 115 to <B> 117 </B>, produced e.g.
B. by reacting chloroacetonitrile with pyrocatechol monomethyl ether in the presence of acid-binding agents) and rubs the 2-methoxyphenoxyacetimidoethyl ether hydrochloride produced with an inert solvent such as petroleum ether, ether or benzene.
It is obtained in the form of a colorless, moisture-sensitive crystal powder. 24.5 parts of 2-methoxyphenoxyacet imidoethyl ether hydrochloride, from which 2-methoxy-phenoxy-acetimidoethyl ether is formed during the reaction, are mixed with an alcoholic solution of 2,
2 parts of ammonia shaken until the ammonia chloride that is formed disappears. The alcohol is then distilled off and the residue is recrystallized from acetone. The 2-methoxyphenoxyethenylamine hydrochloride is thus obtained as a colorless crystal powder from which the free base can be obtained by means of alkalis.
Instead of 2-methoxy-phenoxyacetimido-äthyIäther one can just as well from another ether, such as z. B. from the methyl. Run out of propyl or butyl ether. Instead of the hydrochloric acid salt of 2- 1Vlethoxy -phenoxyacetimidoäthyläthers, the free base itself or another salt, such as. B. the hydrobromide or the sulfuric acid salt, use.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH200478T | 1938-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH200478A true CH200478A (en) | 1938-10-15 |
Family
ID=4442333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH200478D CH200478A (en) | 1938-10-15 | 1935-06-21 | Process for the preparation of a new therapeutically effective amidine. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH200478A (en) |
-
1935
- 1935-06-21 CH CH200478D patent/CH200478A/en unknown
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