DE944189C - Process for the production of anti-coagulant substances - Google Patents

Process for the production of anti-coagulant substances

Info

Publication number
DE944189C
DE944189C DEK17944A DEK0017944A DE944189C DE 944189 C DE944189 C DE 944189C DE K17944 A DEK17944 A DE K17944A DE K0017944 A DEK0017944 A DE K0017944A DE 944189 C DE944189 C DE 944189C
Authority
DE
Germany
Prior art keywords
production
substances
sulfuric acid
inulin
coagulant
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
DEK17944A
Other languages
German (de)
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.)
Abbott GmbH and Co KG
Original Assignee
Knoll GmbH
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 Knoll GmbH filed Critical Knoll GmbH
Priority to DEK17944A priority Critical patent/DE944189C/en
Application granted granted Critical
Publication of DE944189C publication Critical patent/DE944189C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08BPOLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0051Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Fructofuranans, e.g. beta-2,6-D-fructofuranan, i.e. levan; Derivatives thereof
    • C08B37/0054Inulin, i.e. beta-2,1-D-fructofuranan; Derivatives thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Description

Verfahren zur Herstellung von blutgerinnunghemmenden Stoffen Es wurde schon mehrfach vorgeschlagen, Schwefelsäureester von Polysacchariden als blutgerinnnnghemmende Stoffe zu verwenden. Bei vielen solchen Stoffen hat sich gezeigt, daß diese Ester zwar stark wirksam, aber zugleich so toxisch sind, daß sie therapeutisch nicht verwendbar sind (Ingelman, Arkiv för Kein, Mineralogi och Geologie, Bd. 24B, Nr. 5 [1947], S. I bis 4).Process for the manufacture of anti-coagulant substances It was It has already been proposed several times to use sulfuric acid esters of polysaccharides as anticoagulants Substances to use. With many such substances it has been shown that these esters highly effective, but at the same time so toxic that they cannot be used therapeutically are (Ingelman, Arkiv för Kein, Mineralogi och Geologie, Vol. 24B, No. 5 [1947], Pp. I to 4).

Es wurde nun gefunden, daß man Inulinschwefelsäureester durch nachträgliche Behandlung mit solchen oxydierenden Mitteln, die Kohlenhydrate in die entsprechenden Uronsäuren überzuführen vermögen, derart abwandeln kann, daß ein Teil der primären Alkoholgruppen in Carboxylgruppen übergeführt wird) und man erhält auf diese Weise gut verträgliche Präparate von gleich starker blutgerinnunghemmender Wirkung. Die neuen Stoffe stehen in naher Verwandschaft zum Heparin, das als Polymucoildinschwe£elsäurèester ebenfalls sowohl Carboxyl- als auch Schwefelsäurereste enthält. It has now been found that inulin sulfuric acid esters by subsequent Treatment with such oxidizing agents, the carbohydrates in the appropriate Ability to transfer uronic acids, can modify them in such a way that some of the primary Alcohol groups is converted into carboxyl groups) and is obtained in this way well tolerated preparations with equally strong anti-coagulant effects. the New substances are closely related to heparin, the polymucoildin sulfuric acid ester also contains both carboxyl and sulfuric acid residues.

Als Oxydationsmittel für die Umwandlung der Polysaccharidschwefelsäureester hauben sich vorzugsweise Salpetersäure und Natrinmuitrit bzw. As an oxidizing agent for the conversion of the polysaccharide sulfuric acid ester Preferably nitric acid and sodium muitrite resp.

Stickoxyde bewährt.Proven nitrogen oxides.

Es ist zwar bekannt, Polysaccharide durch Einwirkung von Oxydationsmitteln in Polyuronsäuren umzuwandeln; diese Oxydation ist jedoch bei Polysaccharidschwefels äurees tern bis jetzt nicht versucht worden, und das Gelingen dieser Reaktion war auch nicht vorauszusehen. Although it is known to polysaccharides by the action of oxidizing agents convert to polyuronic acids; however, this oxidation is at Polysaccharide sulfur acid esters have not yet been attempted, and this reaction was successful also not to be foreseen.

Es wurde auch schon vorgeschlagen, Cellulose (Zellwolle) zunächst zu carboxylieren und darauf zu sulfurieren, wodurch ebenfalls carboxylierte Polysaccharidschwefelsäureester erhalten werden. It has also been suggested to use cellulose (rayon) initially to carboxylate and then to sulfurize, whereby also carboxylated polysaccharide sulfuric acid esters can be obtained.

Diese Produkte haben wegen ihrer schwachen Heparinwirkung keinen Eingang in den Arzneischatz gefunden. Auf Inulin war dieses bekannte Verfahren nicht anwendbar, da dieses Polysaccharid bei der Einwirkung von Oxydationsmitteln vollkommen zersetzt wird.These products have no entrance because of their weak heparin action found in the medicine treasure. This known method was not applicable to inulin, since this polysaccharide completely decomposes when exposed to oxidizing agents will.

Beispiel I00 g gut gereinigtes Natriumsalz des Inulinsulfats, das aus reinstem Inulin (für Clearance-Untersuchungen) gewomeen !worden ist, werden in 1 1 25°/aiger Salpetersäure gelöst. In diese Lösung werden bei 20° im Laufe von 5 Stunden 20 g Natriumnitrit unter stetigem Rühren in kleinen Portionen eingefragen. Die Reaktionslösung wird weitere 2 Stunden bei 200 stehengelassen. Darauf wird das oxydierte Inulinsulfat mit etwa 3 1 Alkohol gefällt, wiederholt mit Eisessig, Aceton, Ather gewaschen und getrocknet. Ausbeute: etwa 60 g. Example 100 g of well purified sodium salt of inulin sulfate, which made from the purest inulin (for clearance studies) dissolved in 1 liter of 25% nitric acid. In this solution at 20 ° during For 5 hours, fill in 20 g of sodium nitrite in small portions while stirring constantly. The reaction solution is left to stand at 200 for a further 2 hours. Then that will oxidized inulin sulfate precipitated with about 3 liters of alcohol, repeated with glacial acetic acid, acetone, Ather washed and dried. Yield: about 60 g.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von blutgerinnunghemmenden Stoffen, dadurch gekennzeichnet, daß man in Inulinschwefelsäureester durch Behandlung mit solchen oxydierenden. PATENT CLAIM: Process for the production of anti-coagulants Substances, characterized in that inulin sulfuric acid ester by treatment with such oxidizing. Mitteln, die Kohlenhydrate in die entsprechenden Uronsäuren überzuführen vermögen, Carboxylreste einführt. Means to convert the carbohydrates into the corresponding uronic acids able to introduce carboxyl radicals. Angezogene Druckschriften: Berichte der Deutschen Chemischen Gesellschaft, 80, (947), S. I79 bis I87. Printed publications: Reports of the German Chemical Society, 80, (947), pp. I79 to I87.
DEK17944A 1953-05-03 1953-05-03 Process for the production of anti-coagulant substances Expired DE944189C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK17944A DE944189C (en) 1953-05-03 1953-05-03 Process for the production of anti-coagulant substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK17944A DE944189C (en) 1953-05-03 1953-05-03 Process for the production of anti-coagulant substances

Publications (1)

Publication Number Publication Date
DE944189C true DE944189C (en) 1956-06-07

Family

ID=7215251

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK17944A Expired DE944189C (en) 1953-05-03 1953-05-03 Process for the production of anti-coagulant substances

Country Status (1)

Country Link
DE (1) DE944189C (en)

Non-Patent Citations (1)

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

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