CH221515A - Process for the preparation of a salt of a derivative of p-aminobenzenesulfonamide. - Google Patents

Process for the preparation of a salt of a derivative of p-aminobenzenesulfonamide.

Info

Publication number
CH221515A
CH221515A CH221515DA CH221515A CH 221515 A CH221515 A CH 221515A CH 221515D A CH221515D A CH 221515DA CH 221515 A CH221515 A CH 221515A
Authority
CH
Switzerland
Prior art keywords
pyridine
salt
derivative
calcium
soluble
Prior art date
Application number
Other languages
German (de)
Inventor
Chemisches Industrielles Cilag
Original Assignee
Cilag Chemisches Ind Lab A G
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
Priority claimed from CH221515T external-priority
Application filed by Cilag Chemisches Ind Lab A G filed Critical Cilag Chemisches Ind Lab A G
Publication of CH221515A publication Critical patent/CH221515A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D213/00Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/72Nitrogen atoms
    • C07D213/76Nitrogen atoms to which a second hetero atom is attached

Description

  

      Verfahren    zur Darstellung eines Salzes eines     Abkömmlings    des       p-Aminobenzolsulfonamids.       Das in neuester Zeit     bekannt    .gewordene  2-     (p-Acetyl',aminobenzolsulfonylamino-)        pyri-          .din    hat     sich        als,        geeignet    erwiesen zur Be  kämpfung     infektiöser,        insbesondere    durch  Kokken     hervorgerufener    Krankheiten.  



  Es     wurde        nun    gefunden, dass das. durch  Ersatz     desi    Wasserstoffatoms, seiner     Sulfon-          amidgruppe        durch    Kalzium erhältliche     Kal-          zium@salz    des 2 - (p -     Acetylaminobenzol.sul        -          fonylamino-)pyridins        gegenüber    der entspre  chenden Wasserstoffverbindung die oben er  wähnten therapeutischen Eigenschaften in       verstärktem    Masse aufweist, ausserdem eine       bessere    Verträglichkeit besitzt.

   Die neue Ver  bindung     solli    daher zur Bekämpfung infek  tiöser Erkrankungen, speziell der durch       Strepto-,        Gono-    und     Pneumokokken        ver-          ursa.ehten,    verwendet     werden.     



  Das     erfindungsgemässe    Verfahren zur       Darstellung    der neuen Verbindung ist da  durch     gekennzeichnet,        .dass    man     2-(p-Acetyl-          aminobenzodsü,Ifonylamino-)pyridin    und eine    zum     Austausch        des@asserstoffesder        Sulfon-          amidgruppe    gegen Kalzium     befähigte    Ver  bindung, z.

   B.     Kalziumhydrogyd,    lösliches       Kalziumealz,        wie        Kalziumchlorid,    aufeinan  der einwirken lässt, wobei sich     d@asi    neutrale       Kalziumsalz    des     2-(p-Acetylaminobenzol-          sulfonylamino-)pyridins,    bildet.  



       Ausführungsbeispiel:     20 g     2.-(p-Acetylaminobenzolsulfonyl-          amino-)pyridin    werden in     stark        konzentrier-          tem,        wässerigem    Ammoniak gelöst.

   Zu der       warmen    Lösung fügt man tropfenweise eine  konzentrierte,     heisse,        wässerige    Lösung von  zirka 100 g     Kalziumchlorid.    Man lässt über  Nacht stehen,     nutseht        das        auskriibtallisierte     2     -(p-Acetylaminobenzolsulfonylamino-)        pyri-          ,din-Kalzium    ab und     wäseht    es mit wenig       kaltem    Wasser. Die     Ausbeute        beträgt    16 g.  



  Die neue Verbindung bildet Prismen. Sie       zersetzt    sich     oberhalb:    250 C, ohne zu schmel  zen, ist     sowohl    in warmem als auch in kaltem      Wasser ziemlich löslich, ebenfalls in     Pyri-          din,        wenib    löslich in Alkohol, schwerlöslich  in Azeton,     3ther    und Benzol.



      Process for the preparation of a salt of a derivative of p-aminobenzenesulfonamide. The recently known 2- (p-acetyl ', aminobenzenesulfonylamino) pyri- .din has proven to be suitable for combating infectious diseases, especially those caused by cocci.



  It has now been found that the calcium salt of 2- (p-acetylaminobenzene-sulfonylamino-) pyridine, obtainable by replacing the hydrogen atom, its sulfonamide group with calcium, has the above-mentioned therapeutic properties compared to the corresponding hydrogen compound has to a greater extent, also has a better tolerance.

   The new compound should therefore be used to combat infectious diseases, especially those caused by streptococci, gonococci and pneumococci.



  The inventive method for the preparation of the new compound is characterized by .that 2- (p-acetyl aminobenzodsü, ifonylamino) pyridine and a compound capable of exchanging the @ hydrogen sulfonamide group with calcium, eg.

   B. calcium hydrogen, soluble calcium salt, such as calcium chloride, can act on one another, with the neutral calcium salt of 2- (p-acetylaminobenzene sulfonylamino) pyridine forming.



       Exemplary embodiment: 20 g of 2 .- (p-acetylaminobenzenesulfonylamino) pyridine are dissolved in highly concentrated aqueous ammonia.

   A concentrated, hot, aqueous solution of about 100 g of calcium chloride is added dropwise to the warm solution. It is left to stand overnight, the 2 - (p-acetylaminobenzenesulfonylamino) pyri-, din-calcium, which has been crystallized out, is then washed off with a little cold water. The yield is 16 g.



  The new connection forms prisms. It decomposes above 250 C without melting, is fairly soluble in both warm and cold water, also in pyridine, slightly soluble in alcohol, sparingly soluble in acetone, ether and benzene.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstel:lunb eines Salzes eines Abkömmlings des p Aminobenzolsul- fonamids, dadurch gekennzeichnet, dass man 2- (p- Acetylaminobenzolsulfony lamino-) PATENT CLAIM: Process for the representation: lunb of a salt of a derivative of p aminobenzene sulfonamide, characterized in that 2- (p- acetylaminobenzene sulfony lamino-) pyri- din und eine zum Austausch des '#Vasser- stoffes der Sulfonamidgruppe gegen Kalzium befähigte Verbindung aufeinander einwirken lässt, wobei das neutrale halziumsalz :des 2- (p- Acetylaminobenzolsulfony lamino-i pyri- dins entsteht. Das Verfahrensprodukt, bildet. Prismen. pyridine and a compound capable of exchanging the hydrogen of the sulfonamide group for calcium can act on one another, with the neutral halogen salt: 2- (p-acetylaminobenzenesulfonylamino-pyridine. The product of the process forms. prisms. Es zersetzt sich oberhalb 250 C, ohne zu schmelzen, ist sowohl in warmem als auch in kaltem Wasser ziemlich löslieb, ebenfalls in Pyridin, wenig löslich in Alkohol, s.ehwer- lÜlic.h in Azeton. Äther und Benzol. Es soll zur Bekämpfung infektiöser Erkrankungen. speziell der durch Strepto-, Gono- und Pneu mokokken verursachten, verwendet erden. It decomposes above 250 C without melting, is fairly soluble in both warm and cold water, also in pyridine, not very soluble in alcohol, see also in acetone. Ether and benzene. It is said to fight infectious diseases. especially those caused by streptococci, gonococci and pneumococci are used.
CH221515D 1939-11-21 1939-11-21 Process for the preparation of a salt of a derivative of p-aminobenzenesulfonamide. CH221515A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH221515T 1939-11-21
CH213815T 1943-03-13

Publications (1)

Publication Number Publication Date
CH221515A true CH221515A (en) 1942-05-31

Family

ID=25725495

Family Applications (1)

Application Number Title Priority Date Filing Date
CH221515D CH221515A (en) 1939-11-21 1939-11-21 Process for the preparation of a salt of a derivative of p-aminobenzenesulfonamide.

Country Status (1)

Country Link
CH (1) CH221515A (en)

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