CH149254A - Process for the preparation of a high polymer anetholsulfonic acid. - Google Patents

Process for the preparation of a high polymer anetholsulfonic acid.

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Publication number
CH149254A
CH149254A CH149254DA CH149254A CH 149254 A CH149254 A CH 149254A CH 149254D A CH149254D A CH 149254DA CH 149254 A CH149254 A CH 149254A
Authority
CH
Switzerland
Prior art keywords
preparation
anetholsulfonic
acid
water
high polymer
Prior art date
Application number
Other languages
German (de)
Inventor
F Hoffmann- Aktiengesellschaft
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of CH149254A publication Critical patent/CH149254A/en

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  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Description

  

  Verfahren zur Darstellung einer hochpolymeren     Anetholsulfosäure.       Über das Wesen der Blutgerinnung be  sitzen wir noch keine sicheren Kenntnisse.  Die wenigen Stoffe, die nach dem bisherigen  Wissen die Blutgerinnung zu hemmen ver  mögen, sind entweder chemisch überhaupt  nicht definiert oder so heterogener Art, dass  irgendwelche Schlüsse auf den Mechanismus  ihrer Wirkung nicht gezogen werden können.

    Es ist deshalb ein sehr überraschender Be  fund, dass man zu     Stoffen    von starker     ge-          rinnungshemmender    Wirkung kommt, wenn  man in hochmolekulare Verbindungen, die  durch     Polymerisation    von aromatischen Aus  gangsstoffen entstanden sind, salzbildende  Gruppen, wie       CH2COOH,        SOaH,    CH2CH2<B>N</B>     (C2H5)2     in an sich bekannter Weise einführt und  damit wasserlöslich macht. Die so gewonne  nen     Stoffe    kommen in ihrer Wirkungsstärke  den handelsüblichen     Hirudinpräparaten    gleich,  sind aber im Gegensatz zu diesen Produkten  völlig beständig und sehr wenig giftig.

   Ihre         gerinnungshemmende    Wirkung bleibt auch  im lebenden Organismus lange erhalten.  



  Gegenstand der vorliegenden Erfindung  ist ein Verfahren zur Darstellung einer hoch  polymeren     Anetholsulfosäure,    welches dadurch  gekennzeichnet ist, dass man auf     Polyarrethol     konzentrierte Schwefelsäure einwirken lässt.  



  Die neue Verbindung bildet leicht in  Wasser lösliche     Alkalisalze.    Das Natrium  salz ist ein schwach gelbes, in Wasser leicht  lösliches Pulver. Ihre Salze sollen als Mittel  zur Hemmung der     Blutgerinnung    verwendet  werden.    <I>Beispiel</I>  3 Teile     Polyanethol,    das durch Extraktion  mit Äther von niedrigen Polymeren befreit  ist und ein     Durchschnittsmolekulargewicht     von zirka<B>10000</B> besitzt, werden mit l3-20  Teilern konzentrierter Schwefelsäure unter  mässiger Kühlung so lange     verknetet,    bis  eine gleichmässige, tief rote Lösung entstan-      den ist.

   Blau lässt noch 2 Stunden in der       gälte    stehen, giesst dann in Wasser, fällt die  Schwefelsäure durch Zusatz von Kreide aus,  versetzt das neutrale Filtrat mit     Sodalösung     bis zur schwach alkalischen Reaktion, trennt  von dem ausfallenden     Kalziumcarbonat    und  dampft das Filtrat ein. Man erhält das     hTa-          triumsalz    der hochpolymeren     Anetholsulfo-          säure    als schwach gelbes, in Wasser leicht  lösliches Pulver.



  Process for the preparation of a high polymer anetholsulfonic acid. We do not yet have any definite knowledge of the nature of blood coagulation. The few substances that are known to be able to inhibit blood coagulation are either not chemically defined at all or are so heterogeneous that no conclusions can be drawn about the mechanism of their action.

    It is therefore a very surprising finding that substances with a strong anticoagulant effect are obtained if salt-forming groups, such as CH2COOH, SOaH, CH2CH2 <B> N, are added to high molecular weight compounds that are formed by the polymerization of aromatic starting materials </B> (C2H5) 2 introduces in a manner known per se and thus makes it water-soluble. In terms of their potency, the substances obtained in this way are the same as those of commercially available hirudin preparations, but, unlike these products, are completely stable and very little toxic.

   Its anticoagulant effect is retained for a long time in the living organism.



  The present invention relates to a process for the preparation of a highly polymeric anetholsulfonic acid, which is characterized in that sulfuric acid concentrated on polyarrethole is allowed to act.



  The new compound forms alkali salts which are easily soluble in water. Sodium salt is a pale yellow powder that is easily soluble in water. Their salts are said to be used as a means of inhibiting blood clotting. <I> Example </I> 3 parts of polyanethol, which has been freed of low polymers by extraction with ether and has an average molecular weight of about <B> 10,000 </B>, are mixed with 13-20 parts of concentrated sulfuric acid with moderate cooling Knead until a uniform, deep red solution is obtained.

   Blue lets stand in the cold for another 2 hours, then pours into water, the sulfuric acid precipitates by adding chalk, the neutral filtrate is mixed with soda solution until a weakly alkaline reaction, separates from the precipitating calcium carbonate and evaporates the filtrate. The sodium salt of the high-polymer anetholsulfonic acid is obtained as a pale yellow powder which is easily soluble in water.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung einer hochpoly meren Anetholsulfosäure, dadurch gekenn zeichnet, dass man auf Polyanethol konzen trierte Schwefelsäure einwirken lässt. Die neue Verbindung bildet leicht in Wasser lösliche Alkalisalze. Das Natriumsalz ist ein schwach gelbes, in Wasser leicht lösliches Pulver. Ihre Salze sollen als Mittel zur Hemmung der Blutgerinnung verwendet werden. PATENT CLAIM: Process for the preparation of a highly polymeric anetholsulfonic acid, characterized in that sulfuric acid concentrated on polyanethole is allowed to act. The new compound forms alkali salts which are easily soluble in water. The sodium salt is a pale yellow powder that is easily soluble in water. Their salts are said to be used as a means of inhibiting blood clotting.
CH149254D 1929-11-04 1930-10-09 Process for the preparation of a high polymer anetholsulfonic acid. CH149254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE149254X 1929-11-04

Publications (1)

Publication Number Publication Date
CH149254A true CH149254A (en) 1931-08-31

Family

ID=5673227

Family Applications (1)

Application Number Title Priority Date Filing Date
CH149254D CH149254A (en) 1929-11-04 1930-10-09 Process for the preparation of a high polymer anetholsulfonic acid.

Country Status (1)

Country Link
CH (1) CH149254A (en)

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