DE839940C - Process for the preparation of organic salts of ª † -Methylmercapto-ª ‡ -acylaminobutyric acids - Google Patents

Process for the preparation of organic salts of ª † -Methylmercapto-ª ‡ -acylaminobutyric acids

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Publication number
DE839940C
DE839940C DEK5437A DEK0005437A DE839940C DE 839940 C DE839940 C DE 839940C DE K5437 A DEK5437 A DE K5437A DE K0005437 A DEK0005437 A DE K0005437A DE 839940 C DE839940 C DE 839940C
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Germany
Prior art keywords
methylmercapto
choline
acylaminobutyric
acid
salt
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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
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DEK5437A
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German (de)
Inventor
Hans Dr Plieninger
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Abbott GmbH and Co KG
Original Assignee
Knoll GmbH
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Publication date
Application filed by Knoll GmbH filed Critical Knoll GmbH
Priority to DEK5437A priority Critical patent/DE839940C/en
Application granted granted Critical
Publication of DE839940C publication Critical patent/DE839940C/en
Expired legal-status Critical Current

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Description

Verfahren zur Herstellung von organischen Salzen von y-Methylmercapto-a-acylaminobuttersäuren Gegenstand des Patents 8oi 839 ist ein Verfahren zur Herstellung eines organischen Salzes der y-Methylmercapto-a-aminobuttersäure, welches darin besteht, daß man die Aminosäure als solche mit Cholin oder ein geeignetes Salz der Aminosäure mit mineralsaurem Cholin umsetzt.Process for the preparation of organic salts of γ-methylmercapto-α-acylaminobutyric acids The subject of the patent 8oi 839 is a method for producing an organic Salt of γ-methylmercapto-a-aminobutyric acid, which consists in the fact that the Amino acid as such with choline or a suitable salt of the amino acid with mineral acid Choline converts.

Es wurde nun weiterhin gefunden, daß man in gleicher Weise auch mit am Stickstoff acylierten y-hletlivlmercapto-a-aminobuttersäuren Salze des Cholins herstellen kann. Diese Salze haben vor den nicht acylierten Verbindungen den Vorteil, daß ihre wäßrigen Lösungen neutral reagieren, was z. B. bei Verwendung solcher wäßriger Lösungen für Injektionszwecke gegenüber den schwach basischen Methionincholinlösungen von wesentlichem Vorteil ist.It has now also been found that in the same way with y-hallivl-mercapto-a-aminobutyric acid salts of choline acylated on nitrogen can produce. These salts have the advantage over the non-acylated compounds, that their aqueous solutions react neutrally, which z. B. when using such aqueous Solutions for injection purposes compared to the weakly basic methionine choline solutions is of significant advantage.

Die neuen Salze werden dadurch hergestellt, daß man äquivalente Mengen Cholinbase und Acylmethionin, z. B. Acetylmethionin, in Gegenwart eines Lösungsmittels aufeinander einwirken läßt. Ferner werden die Salze auch dadurch erhalten, daß man ein Salz des betreffenden Acylmethionins, vorzugsweise ein Alkalisalz, mit der äquivalenten :Menge von mineralsaurem Cholin umsetzt, und zwar zweckmäßig in einem solchen Lösungsmittel, in welchem das bei der Umsetzung entstehende Alkalisalz unlöslich ist. An Stelle von einem Metallsalz des Acylmethionins kann man auch das Metallsalz bildende Stoffe, wie z. B. Acylmethionin und Alkalihydroxyd.oder -alkoholat, anwenden.The new salts are prepared by using equivalent amounts Choline base and acyl methionine, e.g. B. acetyl methionine, in the presence of a solvent can act on each other. Furthermore, the salts are also obtained by a salt of the acyl methionine in question, preferably an alkali salt, with the equivalent : Reacts amount of mineral acid choline, expediently in such a solvent, in which the Implementation of the resulting alkali salt insoluble is. The metal salt can also be used instead of a metal salt of acyl methionine forming substances, such as B. acyl methionine and alkali hydroxide or alcoholate use.

Beispiel In eine Lösung von 7i,i g Cholinchlorid in Zoo ccm absolutem Alkohol wird unter Rühren und Kühlen alkoholisches Natriumäthylat, erhalten aus 11,7 g Natrium in 25o ccm absolutem Alkohol, eingetragen. Das ausfallende Natriumchlorid wird abgetrennt und die alkoholische Lösung der Cholin-Base zu einer Lösung von 97,3 g Acetylmethionin in 8oo ccm. Wasser hinzugegeben, wobei eine Lösung von neutraler Reaktion erhalten wird. Nach dem Verdampfen des Wassers und Alkohols im Vakuum hinterbleibt das Cholinsalz des Acetylmethionins als syrupöse Masse.Example In a solution of 71.1 g of choline chloride in zoo ccm of absolute Alcohol is obtained from alcoholic sodium ethylate with stirring and cooling 11.7 g of sodium in 250 cc of absolute alcohol, entered. The precipitating sodium chloride is separated and the alcoholic solution of the choline base to a solution of 97.3 g of acetyl methionine in 8oo cc. Water added, a solution of neutral Reaction is obtained. After evaporation of the water and alcohol remains in vacuo the choline salt of acetylmethionine as a syrupy mass.

Claims (2)

PATENTANSPRÜCHE.: i. Weitere Ausbildung des Verfahrens zur Herstellung eines organischen Salzes der y-Methylmercapto-a-aminobuttersäure nach Patent 8oi 839, dadurch gekennzeichnet, daß man an Stelle dieser Aminosäure eine beliebige y-Methy)mercapto-aacylaminobuttersäure mit einer äquivalenten Menge Cholin in Gegenwart eines Lösungsmittels umsetzt. CLAIMS: i. Further training of the manufacturing process of an organic salt of γ-methylmercapto-a-aminobutyric acid according to patent 801 839, characterized in that any one in place of this amino acid y-Methy) mercapto-aacylaminobutyric acid with an equivalent amount of choline in the presence a solvent converts. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß man auf ein Salz einer y-Methylmercapto-a-acylaminobuttersäure, insbesondere auf ein Alkalisalz, mineralsaures Cholin einwirken läßt. Ergänzungsblatt zur Patentschrift Nr. 839 940 Klasse 12q Gruppe 6/U1 Las Patent 839 940 ist durch Verzicht auf das Hauptpatent 801 839 selbständig geworden.2. The method according to claim i, characterized in that a salt of a γ-methylmercapto-α-acylaminobutyric acid, in particular an alkali salt, mineral acid choline is allowed to act. Supplementary sheet to patent specification no. 839 940 class 12q group 6 / U1 Las patent 839 940 has become independent by waiving the main patent 801 839.
DEK5437A 1950-07-08 1950-07-08 Process for the preparation of organic salts of ª † -Methylmercapto-ª ‡ -acylaminobutyric acids Expired DE839940C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK5437A DE839940C (en) 1950-07-08 1950-07-08 Process for the preparation of organic salts of ª † -Methylmercapto-ª ‡ -acylaminobutyric acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK5437A DE839940C (en) 1950-07-08 1950-07-08 Process for the preparation of organic salts of ª † -Methylmercapto-ª ‡ -acylaminobutyric acids

Publications (1)

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DE839940C true DE839940C (en) 1952-05-26

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DEK5437A Expired DE839940C (en) 1950-07-08 1950-07-08 Process for the preparation of organic salts of ª † -Methylmercapto-ª ‡ -acylaminobutyric acids

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