DE949468C - Process for the production of an aneurine cot - Google Patents

Process for the production of an aneurine cot

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Publication number
DE949468C
DE949468C DEM22575A DEM0022575A DE949468C DE 949468 C DE949468 C DE 949468C DE M22575 A DEM22575 A DE M22575A DE M0022575 A DEM0022575 A DE M0022575A DE 949468 C DE949468 C DE 949468C
Authority
DE
Germany
Prior art keywords
cocarboxylase
aneurine
production
cot
water
Prior art date
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
Application number
DEM22575A
Other languages
German (de)
Inventor
Dr Otto Zima
Dr Georg Goettmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merck KGaA
Original Assignee
E Merck AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by E Merck AG filed Critical E Merck AG
Priority to DEM22575A priority Critical patent/DE949468C/en
Application granted granted Critical
Publication of DE949468C publication Critical patent/DE949468C/en
Expired legal-status Critical Current

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Description

Verfahren zur Herstellung eines Aneurinabkömmlings My@r.bäck und Mitarbeiter (Svensk-Kemisk Tidskrift, 57, 1aq. [19q.5]) haben behauptet, eine Lösung des Cocarboxyl,ase,disulfids durch Einwir- kung von Jod auf Cocarboxylase in alkalischer Lösung hergestellt zu haben. Sie sichreiben jedoch nichts über die Möglichkeit, das genannte Disulfid nach .diesem Verfahren in Substanz zu isolieren. Aus K a r r e r und V i s c o n t i n i (Helv. Chimica Acta, Bd. 29 [19q.6], S. 711 und 198a) geht hervor, daß das nicht gelingt, denn es wird :dabei ein Präparat erhalten, das im Warburg-Test keine Cocarboxylasewirkung zeigte.Process for the preparation of an aneurine derivative My@r.bäck and staff (Svensk-Kemisk Tidskrift, 57, 1aq. [19q.5]) have claimed a Solution of the cocarboxyl, ase, disulfide by exposure kung of iodine to cocarboxylase in alkaline Having made the solution. However, you rub yourself nothing about the possibility of said disulfide after .this method to isolate in substance. From K arrer and V iscontini (Helv. Chimica Acta, Vol. 29 [19q.6], pp. 711 and 198a) it emerges, that this does not succeed, because it will: thereby obtain a preparation that showed no cocarboxylase effect in the Warburg test.

Nach vorliegender Erfindung ist .das im Warburg-Test wirksame Cocarboxyl.as@e-di,sulfid erstmalig dadurch hergestellt worden, daß man Coca,rboxylase mit Hilfe von Chlor, Brom oder Wasserstoffsuperoxyd in alkalisch.eir Lösung zum entsprechenden Disulfid oxydierte. Das Hydrochlorid dieser Verbindung hat die Summenformel C24 Hag Oll, Na S2 P4 - 2 H Cl und folgende Konstitutionsformel Das Cocarboxylase-disulfid sst als salzsaures Salz sehr leicht :in Wasser löslich.. Es ist löslich in Methanol und Äthylalkohol und nahezu unlöslich in' den anderen üblichen organischen Lösungsmitteln.According to the present invention, the Cocarboxyl.as @ e-di, sulfide effective in the Warburg test has been produced for the first time by oxidizing cocarboxylase with the aid of chlorine, bromine or hydrogen peroxide in an alkaline solution to form the corresponding disulfide. The hydrochloride of this compound has the empirical formula C24 Hag Oll, Na S2 P4 - 2 H Cl and the following constitutional formula As a hydrochloric acid salt, cocarboxylase disulphide is very easy: soluble in water. It is soluble in methanol and ethyl alcohol and almost insoluble in the other common organic solvents.

Die neue Verbindung ist wegen ihrer Cocarboxylasewirkung von hohem therapeutischem Interesse. Es wurde seit längerem vermutet, daß sie die natürjiche wirksame Form des Vitamins Bi darstellt. Bei;spiel i 26 g Cocarboxylase werden in, i5o ccm Wasser gelöst und auf -5° gekühlt. Diese Temperatur m,uß bei allen nahfolgenden Verfahrensstufen beibehalten werden. Eine Lösung von 2o g Ätzna:tron in 25 ccm Wasser und i5o ccm Methanol werden langsam zugegeben und 3,55 g Chlor in das Gemisch eingeleitet. Danach bleibt das Ganze noch 15 Minuten stehen, wird dann mit 5 1 Aceton gefällt und absitzen gelassen. Das überstehende Lösungsmittel gießt man daraufhin ab, suspendiert den Rückstand in 45o ccm Methanol und leitet bis zur schwach kongosauren Reaktion Chlorwasserstoff ein, wobei das salzsaure Salz des Cocarboxylasedisulfids in Lösung geht. Nach dem Absaugen des gebildeten Kochsalzes wird das Filtrat in 5 1 Aceton eingerührt. Das ausgefallene amorphe Produkt wird abgesaugt, mit Äther gewaschen und im Exsiccator über Phosphorpentoxyd getrocknet. B e.i.spi e1 -- 23 g Cocarlboxylase werden in 75 ccm Wasser gelöst und bei -5° mit einer kalten Lösung von io g Ätznatron in 15 ccm Wasser und ioo ccm Methanol langsam versetzt. Bei der anschließenden Oxydation durch Zugabe von 2,5 g Wasserstoffperoxyd (3oo/oig) wird die Temperatur unterhalb -5° gehalten. Nachdem das Gemisch noch 15 Minuten gerührt worden ist, wird nach Beispiel i aufgearbeitet. Beispie.l 3 23 g Cocarboxylase werden bei -5° mit io g Ätznatron in 75 ccm Wasser und ioo ccm Methanol gelöst und -durch Zusatz von 5 g Brom zum Disulfid oxydiert. Die Aufarbeitung erfolgt nach Beispiel i.The new compound is of great therapeutic interest because of its cocarboxylase activity. It has long been suspected that it is the naturally effective form of vitamin Bi. For example, 26 g of cocarboxylase are dissolved in 150 cc of water and cooled to -5 °. This temperature must be maintained in all subsequent process stages. A solution of 20 g of caustic soda in 25 cc of water and 150 cc of methanol are slowly added and 3.55 g of chlorine are introduced into the mixture. Then the whole thing remains for 15 minutes, is then precipitated with 5 l of acetone and allowed to settle. The supernatant solvent is then poured off, the residue is suspended in 450 cc of methanol and hydrogen chloride is passed in until the reaction is weakly Congo-acidic, the hydrochloric acid salt of the cocarboxylase disulfide dissolving. After the sodium chloride formed has been filtered off with suction, the filtrate is stirred into 5 l of acetone. The precipitated amorphous product is filtered off with suction, washed with ether and dried over phosphorus pentoxide in a desiccator. For example , 23 g of cocarboxylase are dissolved in 75 cc of water and a cold solution of 10 g of caustic soda in 15 cc of water and 100 cc of methanol are slowly added at -5 °. During the subsequent oxidation by adding 2.5 g of hydrogen peroxide (3oo / oig), the temperature is kept below -5 °. After the mixture has been stirred for a further 15 minutes, it is worked up according to Example i. Example 3 23 g of cocarboxylase are dissolved at -5 ° with 10 g of caustic soda in 75 cc of water and 100 cc of methanol and oxidized to disulfide by adding 5 g of bromine. Working up is carried out according to Example i.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines Aneurinabkömmlings, dadurch gekennzeichnet, daß man Cocarboxylase mit Chlor, Brom oder Wasserstoffsuperoxyd in alkalischer Lösung zum entsprechenden Disulfid oxydiert. In Betracht gezogene Druckschriften: Helv: Chimica Acta, Bd. 29 (19q.6), S. 717; Berichte der deutschen chemischen Gesellschaft, Bd. 73 (1940), S - 943 PATENT CLAIM: Process for the production of an aneurine derivative, characterized in that cocarboxylase is oxidized with chlorine, bromine or hydrogen peroxide in an alkaline solution to give the corresponding disulfide. Publications considered: Helv: Chimica Acta, Vol. 29 (19q.6), p. 717; Reports of the German Chemical Society, Vol. 73 (1940), S - 943
DEM22575A 1954-04-01 1954-04-01 Process for the production of an aneurine cot Expired DE949468C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM22575A DE949468C (en) 1954-04-01 1954-04-01 Process for the production of an aneurine cot

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM22575A DE949468C (en) 1954-04-01 1954-04-01 Process for the production of an aneurine cot

Publications (1)

Publication Number Publication Date
DE949468C true DE949468C (en) 1956-09-20

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DEM22575A Expired DE949468C (en) 1954-04-01 1954-04-01 Process for the production of an aneurine cot

Country Status (1)

Country Link
DE (1) DE949468C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1470368B1 (en) * 1963-04-28 1971-02-11 Takeda Chemical Industries Ltd Vitamin B1 derivatives and processes for their preparation
DE1209116B (en) * 1960-10-05 1974-04-25

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1209116B (en) * 1960-10-05 1974-04-25
DE1209116C2 (en) * 1960-10-05 1974-04-25 PROCESS FOR THE PRODUCTION OF A VITAMIN B TIEF 1 DISULFIDE ABKOEMMLING
DE1470368B1 (en) * 1963-04-28 1971-02-11 Takeda Chemical Industries Ltd Vitamin B1 derivatives and processes for their preparation

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