CH246895A - Process for the preparation of a solution of a derivative of a medicinal substance suitable for injection. - Google Patents

Process for the preparation of a solution of a derivative of a medicinal substance suitable for injection.

Info

Publication number
CH246895A
CH246895A CH246895DA CH246895A CH 246895 A CH246895 A CH 246895A CH 246895D A CH246895D A CH 246895DA CH 246895 A CH246895 A CH 246895A
Authority
CH
Switzerland
Prior art keywords
solution
injection
derivative
preparation
medicinal substance
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Cilag
Original Assignee
Cilag 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 Cilag Ag filed Critical Cilag Ag
Publication of CH246895A publication Critical patent/CH246895A/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/16Amides, e.g. hydroxamic acids

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Preparation (AREA)

Description

  

      Verfahren        zur        Herstellung    einer     zur        Injektion    geeigneten Lösung eines Derivates       eines        Heilstoffes.       Das     p-Amino-benzolsulfonamid    und     seine     als Heilmittel verwendeten Derivate     sind     zumeist in Wasser wenig löslich und des  halb     für    Injektionen ungeeignet.

   Es wurde  nun gefunden, dass sich solche Sulfonamide,  die ausser an der freien     p-ständigen,        Amino-          gruppe    noch an einer     anderweitigen    Stelle  des Moleküls     ein    leicht     substituierbares    Was  serstoffatom aufweisen, in einer wässerigen       Lösung    einer     Hegose,    z. B. Glukose,     Galak-          tose,        Mannose,    und     eines        Bisulfites,    z. B.

   Na  trium-,     Kalium-,        Ammomumbisulfit,    oder in  einer wässerigen Lösung     eines        a-oxy-alkyl-          sulfinsauren    Salzes (Alkali- oder     Ammonium-          salz)    zu einer mindestens nahezu neutralen,  für Injektionen verwendbaren     Lösung    auf  lösen lassen. Injektionslösungen von beson  ders hoher     Konzentration    können mit Hilfe  der     Bisulfite        bezw.        a-Oxy-alkylsulfinate    von       Aminen,    z.

   B. von     Diäthylamin,        Diäthanol-          amin,        Morpholin,    erhalten werden.  



  Gegenstand der Erfindung ist ein Ver  fahren zur Herstellung einer zur Injektion       geeigneten    Lösung     eines    neuen Derivates des  bekannten     p-Amino-benzolsulfonamids,    wel  ches dadurch     gekennzeichnet    ist, dass man  1     Mol        p-Amino-benzolsulfonamid    und minde  stens 2 Mole     oxy-methylsulfinsaures    Natrium  in wässerigem Medium aufeinander einwirken  lässt. Es bildet sich dabei eine Lösung von  p -     amino    -     benzolsulf        onamid-N,N'-dimethy@en-          sulfinsaurem    Natrium.

   Diese ist haltbar, lässt    sich in hoher     Konzentration    darstellen und  ohne Ausscheidungen genau neutralisieren,       verdünnen    und sterilisieren.    Das     erfindungsgemässe    Verfahren kann  beispielsweise '-folgendermassen ausgeführt  werden  In eine Suspension von 2,0 g     p-Amino-          benzolsulfonamid    in 7     cm3    Wasser werden  bei     Sauerstoffausschluss        3.,0    g     oxy-methyl-          sulfinsaures    Natrium eingetragen.

   Das Ge  misch wird     unter    Rühren     etwa    1     Stunde    auf  dem Wasserbad erhitzt; wobei eine farblose,  klare Lösung entsteht. Sie     wird    mit Natrium  hydroxyd auf ein p$ von 7,0     eingestellt    und  durch Hinzufügen von destilliertem Wasser  auf ein Volumen von 10 cm? gebracht.  



  Die Lösung der neuen Verbindung ist wie  das     p-Amino-benzolsulfonamid    gegen     Strepto-          und        Pneumokokkeninfektionen        wirksam,    hat  aber dem     p-Amino-benzolsulfonamiid    gegen  über den Vorteil, dass sich     an    der Injektions  stelle keine     Gewebsnekrosen    bilden.



      Process for the preparation of a solution of a derivative of a medicinal substance suitable for injection. The p-amino-benzenesulfonamide and its derivatives used as medicinal products are mostly sparingly soluble in water and therefore unsuitable for injections.

   It has now been found that such sulfonamides, which apart from the free p-position, amino group, have an easily substitutable hydrogen atom elsewhere in the molecule, in an aqueous solution of a Hegose, eg. B. glucose, galactose, mannose, and a bisulfite, z. B.

   Dissolve sodium, potassium, ammonium bisulfite, or in an aqueous solution of an a-oxy-alkyl sulfinic acid salt (alkali or ammonium salt) to form an at least almost neutral solution that can be used for injections. Injection solutions of particularly high concentration can bezw with the help of bisulfites. α-oxy-alkyl sulfinates of amines, e.g.

   B. of diethylamine, diethanolamine, morpholine can be obtained.



  The invention relates to a process for the preparation of a suitable injection solution of a new derivative of the known p-amino-benzenesulfonamide, wel Ches is characterized in that 1 mole of p-amino-benzenesulfonamide and at least 2 moles of sodium oxymethylsulfinate are added aqueous medium can act on each other. A solution of p-amino-benzenesulfonamide-N, N'-dimethy @ enesulfinic acid sodium is formed.

   This is durable, can be displayed in high concentration and precisely neutralized, diluted and sterilized without excretions. The process according to the invention can, for example, be carried out as follows. In a suspension of 2.0 g of p-aminobenzenesulfonamide in 7 cm3 of water, with the exclusion of oxygen, 3.0 g of sodium oxymethylsulfinic acid are introduced.

   The mixture is heated on the water bath for about 1 hour while stirring; a colorless, clear solution is formed. It is adjusted to a pH of 7.0 with sodium hydroxide and adjusted to a volume of 10 cm? By adding distilled water. brought.



  Like p-amino-benzenesulfonamide, the solution of the new compound is effective against streptococcal and pneumococcal infections, but has the advantage over p-amino-benzenesulfonamide that no tissue necrosis forms at the injection site.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer zur In jektion geeigneten Lösung eines Derivates eines Heilstoffes, dadurch gekennzeichnet, dass man 1 Mol p-A@nüno-benzolsulfonamid und mindestens 2 Mole oxy-methylsi@lfin- saures Natrium in wässerigem Medium auf einander einwirken 1'ässt. Die so gewonnene, farb- und geruchlose Lösung ist haltbar und lässt sich auch. PATENT CLAIM: Process for producing a solution of a derivative of a medicinal substance suitable for injection, characterized in that 1 mole of p-A @ nüno-benzenesulfonamide and at least 2 moles of oxy-methylsi @ lfin-acid sodium act on one another in an aqueous medium. The colorless and odorless solution obtained in this way is durable and can also be used. bei starker Konzentration ohne Ausscheidungen genau neutralisieren, verdünnen und sterili- sieren. UNTEUA NSPUUGg Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Substanzen in der Hitze aufeinander einwirken lässt. if the concentration is high, neutralize, dilute and sterilize exactly without excretions. UNTEUA NSPUUGg method according to claim, characterized in that the substances are allowed to act on one another in the heat.
CH246895D 1945-02-10 1945-02-10 Process for the preparation of a solution of a derivative of a medicinal substance suitable for injection. CH246895A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH246895T 1945-02-10
CH240316T 1945-02-10

Publications (1)

Publication Number Publication Date
CH246895A true CH246895A (en) 1947-01-31

Family

ID=25728507

Family Applications (1)

Application Number Title Priority Date Filing Date
CH246895D CH246895A (en) 1945-02-10 1945-02-10 Process for the preparation of a solution of a derivative of a medicinal substance suitable for injection.

Country Status (1)

Country Link
CH (1) CH246895A (en)

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