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DE1035155B - Process for the preparation of therapeutically useful salts of 4,6-dioxyisophthalic acid - Google Patents

Process for the preparation of therapeutically useful salts of 4,6-dioxyisophthalic acid

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Publication number
DE1035155B
DE1035155B DEF22415A DEF0022415A DE1035155B DE 1035155 B DE1035155 B DE 1035155B DE F22415 A DEF22415 A DE F22415A DE F0022415 A DEF0022415 A DE F0022415A DE 1035155 B DE1035155 B DE 1035155B
Authority
DE
Germany
Prior art keywords
acid
dioxyisophthalic
preparation
therapeutically useful
salts
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.)
Pending
Application number
DEF22415A
Other languages
German (de)
Inventor
Dr Ernst Schraufstaetter
Dr Med Werner Grab
Dr Gert Haberland
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to DEF22415A priority Critical patent/DE1035155B/en
Publication of DE1035155B publication Critical patent/DE1035155B/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C65/00Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C65/01Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups
    • C07C65/03Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups monocyclic and having all hydroxy or O-metal groups bound to the ring
    • C07C65/05Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups monocyclic and having all hydroxy or O-metal groups bound to the ring o-Hydroxy carboxylic acids

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

Verfahren zur Herstellung von therapeutisch verwendbaren Salzen der 4,6-Dioxyisophthalsäure Die 4,6-Dioxyisophthalsäure ist bekannt. Zur Herstellung dieser Verbindung eignet sich z. B. das Verfahren von M. Pant litschka und H. Benger (Monatshefte für Chemie, 81, 293 [1950j). Eine pharmakologische oder andere medizinfsche bzw. biiochemische Untersuchung dieser Verbindung ist noch nicht bekanntgeworden. Process for the preparation of therapeutically useful salts of 4,6-Dioxyisophthalic acid 4,6-Dioxyisophthalic acid is known. For the production this connection is suitable for. B. the method of M. Pant litschka and H. Benger (Monthly books for chemistry, 81, 293 [1950j). A pharmacological or other medicinal product or biiochemical investigation of this compound is not yet known.

Es wurde nun überraschenderweise gefunden. daß man therapeutisch verwendbare Salze der 4,6-Dioxyisophthalsäure mit guter antiarthritischer und antiartheriosklerotischer Wirkung bei ausgezeichneter Verträglichkeit erhält. wenn man auf 4,6-Dioxyisophthalsäure, gegebenenfalls in Gegenwart eines Lösungs- oder Verdünnungsmittels, eine nicht toxische organische Base einwirken läßt. It has now been found, surprisingly. that one is therapeutic Usable salts of 4,6-dioxyisophthalic acid with good antiarthritic and antiartheriosclerotic Effect with excellent tolerance. if you rely on 4,6-dioxyisophthalic acid, optionally in the presence of a solvent or diluent, a non-toxic one allows organic base to act.

Die4,6-Dioxyisophthalsäure selbst besitzt zwar auch schon eine günstige pharmakologische Wirkung bei geringer Toxizität, jedoch ist sie als relativ starke organische Säure schlecht magenverträglich. Die Alkalisalze dieser Säure besitzen zwar diese unangenehme Wirkung nicht, haben jedoch den Nachteil, daß bei ihrer längeren Anwendung dem Körper heträchtliche Mengen NaH-- oder K+-1onen zugeführt würden. was bei den zu behandelnden chronischen Stoffwechselerkrankungen unvorteilhaft wäre. The 4,6-dioxyisophthalic acid itself already has a favorable one pharmacological effect with low toxicity, however, it is considered to be relatively strong organic acid poorly tolerated by the stomach. The alkali salts of this acid possess although not this unpleasant effect, but have the disadvantage that with their longer Application the body would supply considerable amounts of NaH-- or K + -1 ions. which would be disadvantageous for the chronic metabolic diseases to be treated.

Alle diese Nachteile können vermieden werden wenn man die Salze der 4,6-Dioxyisophthalsäure mit nicht toxischen organischen Basen verwendet. Diese zeigeil bei sehr guter Wirkung eine ausgezeichnete Verträglichkeit. Darüber hinaus haben sie z. B. den Vorteil einer verzögerten Ausscheidung. Dies bedeutet. daß ein therapeutisch wirksamer Blutspiegel fieber eine längere Zeit eingehalten wird. All of these disadvantages can be avoided by using the salts of the 4,6-Dioxyisophthalic acid used with non-toxic organic bases. This shows excellent tolerability with very good effect. In addition, have she z. B. the advantage of delayed elimination. This means. that a therapeutic effective blood level fever is maintained for a longer period of time.

Als nicht toxische Basen eignen sich insbesondere die Alkanolamine, wie Äthanolamin, Diäthanolamin, Aminozuckerderivate, wie Glukosamin. Methvlglukamin, oder cyclische Basen, wie Morpholin. Piperazin. The alkanolamines are particularly suitable as non-toxic bases, such as ethanolamine, diethanolamine, amino sugar derivatives such as glucosamine. Methglucamine, or cyclic bases such as morpholine. Piperazine.

Die Herstellung der Salze milt der 4.6-Dioxyisophthalsäure erfolgt entweder durch inniges Vermischen der Komponenten, gegebenenfalls in Gegenwart eines Lösungs- oder Verdünnungsmittels oder durch doppelte Umsetzung eines Salzes der A,6-Dioxvisophthalsäure mit Salzen der Basen. Als Lösungsmittel wählt man vorteilhaft ein solches, aus dem das Salz auch umkristallisiert werden kann.The salts are prepared using 4,6-dioxyisophthalic acid either by intimately mixing the components, optionally in the presence of one Solvent or diluent or by double reaction of a salt of A, 6-Dioxvisophthalic acid with salts of the bases. The solvent chosen is advantageous one from which the salt can also be recrystallized.

Man verwendet bevorzugt 2 Mol einer monobasischen oder 1 Mol einer dihasischen Verbindung auf 1 Mol der 4,6-Dioxyisophthalsäure. Man kann aber auch Salze aus 1 Mol Base und 1 Mol A,6-Dioxyisophthalsäure herstellen; diese haben jedoch den Nachteil. in wäß riger Lösung freie 4,6-Dioxyi sophthal säure abzuscheiden. It is preferred to use 2 moles of a monobasic or 1 mole of a monobasic dihasic compound to 1 mole of 4,6-dioxyisophthalic acid. But you can too Prepare salts from 1 mole of base and 1 mole of A, 6-dioxyisophthalic acid; however, these have the disadvantage. Separate out free 4,6-Dioxyi sophthalic acid in aqueous solution.

In allen Fällen erhält man Ausbeuten von 80 bis 90 0/o, bezogen auf eingesetzte 4,6-Dioxyisophthalsäure. In all cases, yields of 80 to 90%, based on 4,6-dioxyisophthalic acid used.

Beispiel 1 19,8 g 4,6-Dioxyisophthalsäure und 24 g Diäthanolamin werden am Wasserbad unter Rühren geschmolzen. Nach dem Umkristallisieren aus Isopropanol schmilzt das Bis-diäthanolaminsalz der 4,6-Dioxyisophthalsäure bei 1080 C. Example 1 19.8 g of 4,6-dioxyisophthalic acid and 24 g of diethanolamine are melted in a water bath while stirring. After recrystallization from isopropanol The bis-diethanolamine salt of 4,6-dioxyisophthalic acid melts at 1080 C.

Beispiel 2 19,8 g 4,6-Dioxyisophthalsäure werden in 400 ccm Alkohol suspendiert. mit 18 g Morpholin versetzt und zum Sieden erhitzt. Man filtriert heiß ab und läßt kristallisieren. Das so gewonnene Di-morpholinat der 4,6-Dioxyisophthalsäure schmilzt bei 1930 C unter Zersetzung. Example 2 19.8 g of 4,6-dioxyisophthalic acid are dissolved in 400 cc of alcohol suspended. mixed with 18 g of morpholine and heated to the boil. It is filtered hot and lets crystallize. The dimorpholinate of 4,6-dioxyisophthalic acid obtained in this way melts at 1930 C with decomposition.

Beispiel 3 19.8 g 4,6-Dioxyisophthalsäure werden in 50ccm Alkohol suspendiert und mit einer Lösung von 6,3 g Äthylendiamin in 150 ccm Wasser versetzt. Man erhitzt zum Sieden, filtriert ab und läßt kristallisieren. Example 3 19.8 g of 4,6-dioxyisophthalic acid are dissolved in 50 cc of alcohol suspended and treated with a solution of 6.3 g of ethylenediamine in 150 ccm of water. The mixture is heated to the boil, filtered off and allowed to crystallize.

Das so erhaltende Äthylendiaminsalz der 4,6-Dioxyisophthaisäure schmilzt hei 2280 C unter Zersetzung.The ethylenediamine salt of 4,6-dioxyisophthalic acid obtained in this way melts at 2280 C with decomposition.

Beispiel 4 19,8 g 4,6-Dioxyisophthalsäure werden in 50 ccm Alkohol suspendiert und mit einer Lösung von 20 g Piperazinhexahydrat in 50 ccm Wasser versetzt. Man löst heiß und läßt dann das Piperazinsalz der 4,6-Dioxyisophthalsäure auskristallisieren. Es schmilzt bei 2140 C unter Zersetzung. Example 4 19.8 g of 4,6-dioxyisophthalic acid are dissolved in 50 cc of alcohol suspended and treated with a solution of 20 g of piperazine hexahydrate in 50 ccm of water. The solution is hot and then the piperazine salt of 4,6-dioxyisophthalic acid is allowed to crystallize out. It melts at 2140 C with decomposition.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von therapeutisch venvendharen Salzen der 4.6-Dioxyisophthalsäu.re' dadurch gekennzeichnet, daß man auf 4,6-Dioxyisophthalsäure, gegebenenfalls in Gegenwart eines Lösungs- oder Verdünnungsmittels. eine nicht toxische organische Base einwirken läßt. PATENT CLAIM: Process for the production of therapeutically venous hairs Salts of 4,6-Dioxyisophthalsäu.re 'characterized in that one on 4,6-Dioxyisophthalic acid, optionally in the presence of a solvent or diluent. a non-toxic one allows organic base to act.
DEF22415A 1957-02-22 1957-02-22 Process for the preparation of therapeutically useful salts of 4,6-dioxyisophthalic acid Pending DE1035155B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF22415A DE1035155B (en) 1957-02-22 1957-02-22 Process for the preparation of therapeutically useful salts of 4,6-dioxyisophthalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF22415A DE1035155B (en) 1957-02-22 1957-02-22 Process for the preparation of therapeutically useful salts of 4,6-dioxyisophthalic acid

Publications (1)

Publication Number Publication Date
DE1035155B true DE1035155B (en) 1958-07-31

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DEF22415A Pending DE1035155B (en) 1957-02-22 1957-02-22 Process for the preparation of therapeutically useful salts of 4,6-dioxyisophthalic acid

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