CH137142A - Process for the preparation of a stable, medically active salt of p-aminophenylstibic acid. - Google Patents
Process for the preparation of a stable, medically active salt of p-aminophenylstibic acid.Info
- Publication number
- CH137142A CH137142A CH137142DA CH137142A CH 137142 A CH137142 A CH 137142A CH 137142D A CH137142D A CH 137142DA CH 137142 A CH137142 A CH 137142A
- Authority
- CH
- Switzerland
- Prior art keywords
- acid
- aminophenylstibic
- active salt
- medically active
- stable
- Prior art date
Links
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Verfahren zur Herstellung eines haltbaren medizinisch wirksamen Salzes der p-Aminophenylstibinsäure. Cxegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines neuen, haltbaren, medizinisch wirksamen Salzes der p-Amino:ph enylätibinsäure, da: durch gekennzeichnet, da.ss man p-Amino- phenylstibingäure mit Hexahydropyra.zin be handelt.
<I>Beispiel:</I> Die aus, 1.50 gor p-Acetylaminophenylsti- binsäure durch Verseifen in bekannter Weis(, gewonnene p-Aminophenylstibinsäure wird in noch feuchtem Zustand mit Wasser und der zur Lösung nötigen Menge Hexahydro- pyrazin geschüttelt. Die Lösung wird fil- triert, durch Eingiessen in Aceton ausgefällt und der Niederschlag im Exsiccator getrock net.
Man erhält ein schwach gefärbtes Pul- er. das sich auch nach längerem Aufbewah ren zu einer einige Zeit haltbaren Lösung im Wasser löst. Wird die Lösung mit Natronlauge ver setzt und :erwärmt, so tritt der Geruch nach Hexahydropyrazin auf<B>-,</B> die stark verdünnte Lösung wird beim Zusatz von verdünnter Salzsäure und Schwefelwaseerstoffwasser gelb. Erwärmt man diese Mischung, so wird Schwefelantimon abgespalten. Das Pulver zersetzt sich. beim Erhitzen ohne zu schmel zen.
Dias neue Salz .soll zu therapeutischen Zwecken verwendet werden. Es hat sich be sonders bei der Behandlung von Kala-azar bewährt.
Process for the preparation of a stable, medically active salt of p-aminophenylstibic acid. The subject of the present patent is a process for the production of a new, long-lasting, medically active salt of p-amino: phenylätibinic acid, characterized by that p-aminophenylstibinic acid is treated with hexahydropyrazine.
<I> Example: </I> The p-aminophenylstibic acid obtained from 1.50 gor p-acetylaminophenylstibic acid by saponification in the known manner (, is shaken while still moist with water and the amount of hexahydropyrazine required for solution. The solution is filtered, precipitated by pouring into acetone and the precipitate is dried in a desiccator.
A slightly colored powder is obtained. which dissolves into a long-lasting solution in water even after prolonged storage. If the solution is mixed with caustic soda and: heated, the odor of hexahydropyrazine appears <B> -, </B> the very dilute solution turns yellow when dilute hydrochloric acid and hydrogen sulfide are added. If this mixture is heated, sulfur antimony is split off. The powder decomposes. when heated without melting.
The new salt is intended to be used for therapeutic purposes. It has proven particularly useful in the treatment of kala-azar.
Claims (1)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE137142X | 1927-02-24 | ||
CH134222T | 1928-02-21 | ||
CH143615T | 1929-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH137142A true CH137142A (en) | 1929-12-15 |
Family
ID=27176992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH137142D CH137142A (en) | 1927-02-24 | 1928-02-21 | Process for the preparation of a stable, medically active salt of p-aminophenylstibic acid. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH137142A (en) |
-
1928
- 1928-02-21 CH CH137142D patent/CH137142A/en unknown
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