CH268331A - Process for the preparation of a new naphthyridine derivative. - Google Patents

Process for the preparation of a new naphthyridine derivative.

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Publication number
CH268331A
CH268331A CH268331DA CH268331A CH 268331 A CH268331 A CH 268331A CH 268331D A CH268331D A CH 268331DA CH 268331 A CH268331 A CH 268331A
Authority
CH
Switzerland
Prior art keywords
sep
new
preparation
derivative
amino
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 CH268331A publication Critical patent/CH268331A/en

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  • Nitrogen Condensed Heterocyclic Rings (AREA)

Description

  

  Verfahren zur Darstellung eines neuen     Naphthyridinderivates.            Ge;enstand    der     Erfindung    ist ein Verfah  ren zur Darstellung eines neuen     Naplithy        ridin-          derivales,        nä.mlieli    des     2-n-Butoxy--I-nietliyl-7-          ani        ino-1,8-naplitliyridiris.     



  Es wurde     Gefunden,    dass     dieses    neue     --Naph-          tIyridinderivat    eine     überraschend        geite        Wirk-          sanikeit        gegenhleinorganismen,    z.

       B.Bakterien,          Protozoen,    Amöben     it5 T.,    besitzt, und daher als  Desinfektionsmittel, sowohl für Gegenstände  als     aueli    für     den        lebenden    Körper, insbeson  dere als     Wund-        und    Darmdesinfiziens wert  voll ist.

   Die neue Verbindung kann in Form       von    Lösungen, Pulvern oder     zii        Sprays,        Emul-          K:ionen,    Pasten,     falben,        Pudern    verarbeitet,  zum     Einreiben,    Einnehmen, Injizieren,     Ver-          sprüfieii,          ns-,v.    verwendet wer  den.  



  Das     Verfahren    zur     Herstellung    des neuen       Naplithyridinderivates    ist dadurch gekenn  zeichnet, dass man ein     2-1Ialogeno-4-metliy        1-7-          aniino-1,8-naphtliyridin    mit     n-Butanol,    zweck  mässig in Gegenwart eines Kondensationsmit  tels, umsetzt. Als     Kondensationsmittel    wird  vorteilhaft ein     Alkalialkoholat    des     n-Butanols     verwendet. Das neue     Naphtbyridinderivat     kann zum Beispiel in     Forin    seiner Salze iso  liert werden.

   Das Verfahrensprodukt bildet       Hellgelbe    Kristalle, die bei 159 bis 161  schmel  zen\ und in     lIethanol,    Azeton und Chloro  form sehr     out    löslich sind.         Aus        f        ü'hruit@sbeisZÜel.:

       10,5 g Natrium werden in 2,5 Litern  absolutem     n-Butanol    aufgelöst und der heissen  
EMI0001.0058     
  
    Lösung <SEP> 80 <SEP> g <SEP> 2-Chlor-4-metlii-1-7-amino-1,8  naI)ht.li5-ridin <SEP> zugefügt. <SEP> Das <SEP> Gemisch <SEP> wird
<tb>  3 <SEP> Stunden <SEP> ani <SEP> Rückflusskühler <SEP> gekocht, <SEP> dann
<tb>  erkalten <SEP> gelassen. <SEP> Die <SEP> Reaktionslösung <SEP> wird
<tb>  mit <SEP> Wasser <SEP> bis <SEP> zur <SEP> neutralen <SEP> Reaktion <SEP> ge  waschen, <SEP> getrocknet <SEP> und <SEP> im <SEP> Vakuum <SEP> einge  dampft. <SEP> Der <SEP> aus <SEP> 2-ii-Butoxy-4-methyl-7  amino-l.,8-na.phtliyridin <SEP> bestehende <SEP> Rückstand
<tb>  wird <SEP> aus <SEP> Essigester <SEP> umkristallisiert. <SEP> Aus  beute:

   <SEP> 7 <SEP> 6 <SEP> g, <SEP> entsprechend <SEP> 95 <SEP> % <SEP> der <SEP> Theorie.
<tb>  Das <SEP> neue <SEP> 1Naphtliyridinderivat <SEP> bildet <SEP> Hellgelbe
<tb>  Kristalle, <SEP> die <SEP> bei <SEP> 159 <SEP> bis <SEP> 161  <SEP> C <SEP> schmelzen,
<tb>  und <SEP> in <SEP> Methanol, <SEP> Azeton <SEP> und <SEP> Chloroform
<tb>  sehr <SEP> gut <SEP> löslich <SEP> sind.



  Process for the preparation of a new naphthyridine derivative. The subject matter of the invention is a method for the preparation of a new naplithyride derivative, namely 2-n-butoxy-1-nietliyl-7-ani ino-1,8-naplitliyridiris.



  It has been found that this new -naphthyridine derivative has a surprisingly high level of activity against internal organisms, e.g.

       B. bacteria, protozoa, amoeba it5 T., and is therefore valuable as a disinfectant, both for objects and also for the living body, in particular as a wound and intestinal disinfectant.

   The new compound can be processed in the form of solutions, powders or sprays, emulsions, pastes, varnishes, powders, for rubbing in, ingesting, injecting, spraying, ns-, v. be used.



  The process for preparing the new naplithyridine derivative is characterized in that a 2-1Ialogeno-4-methyl 1-7-aniino-1,8-naphthylyridine is reacted with n-butanol, expediently in the presence of a condensation agent. An alkali metal alcoholate of n-butanol is advantageously used as the condensing agent. The new naphthobyridine derivative can, for example, be isolated in the form of its salts.

   The process product forms pale yellow crystals which melt at 159 to 161 and are very soluble in ethanol, acetone and chloroform. From f ü'hruit @ sbeisZÜel .:

       10.5 g of sodium are dissolved in 2.5 liters of absolute n-butanol and the hot
EMI0001.0058
  
    Solution <SEP> 80 <SEP> g <SEP> 2-chloro-4-metlii-1-7-amino-1,8 naI) ht.li5-ridin <SEP> added. <SEP> The <SEP> mixture is <SEP>
<tb> 3 <SEP> hours <SEP> ani <SEP> reflux condenser <SEP> boiled, <SEP> then
<tb> cool down <SEP> left. <SEP> The <SEP> reaction solution is <SEP>
<tb> <SEP> with <SEP> water <SEP> to <SEP> to <SEP> neutral <SEP> reaction <SEP> wash, <SEP> dried <SEP> and <SEP> in <SEP> vacuum <SEP> steams. <SEP> The <SEP> consisting of <SEP> 2-ii-butoxy-4-methyl-7 amino-l., 8-na.phtliyridin <SEP> <SEP> residue
<tb> <SEP> is recrystallized from <SEP> ethyl acetate <SEP>. <SEP> From booty:

   <SEP> 7 <SEP> 6 <SEP> g, <SEP> according to <SEP> 95 <SEP>% <SEP> of the <SEP> theory.
<tb> The <SEP> new <SEP> 1naphthliyridine derivative <SEP> forms <SEP> light yellow
<tb> crystals, <SEP> which melt <SEP> at <SEP> 159 <SEP> to <SEP> 161 <SEP> C <SEP>,
<tb> and <SEP> in <SEP> methanol, <SEP> acetone <SEP> and <SEP> chloroform
<tb> very <SEP> well <SEP> soluble <SEP>.

 

Claims (1)

PA.TENTAN SPRUCH Verfahren zur Darstellung eines neuen \a.phtliyridinderivates, dadurch gelzennzeieh- net, dass nian ein 2-I3alogeno-l-methyl-7- amino-1,8-naplithyridin mit n-Bittanol um setzt. Das so erhaltene 2-n-Butoxy-4-methyl- 7-amino-1,8-naplithyridin bildet hellgelbe Kri stalle, die bei 159 bis 161 schmelzen, und in Methanol, Azeton und Chloroform sehr gut löslieli sind. UNTERANSPRÜCHE 1. PA.TENTAN SPRUCH Process for the preparation of a new \ a.phtliyridine derivative, characterized by the fact that a 2-13alogeno-1-methyl-7-amino-1,8-naplithyridine reacts with n-bittanol. The 2-n-butoxy-4-methyl-7-amino-1,8-naplithyridine thus obtained forms pale yellow crystals which melt at 159 to 161 and are very soluble in methanol, acetone and chloroform. SUBCLAIMS 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man die Umset zung in Gegenwart eines Kondensationsmit tels vornimmt. 2. Verfahren nach Patentanspruch und Unteranspruch 1, dadurch gekennzeichnet, da.ss man als Kondensationsmittel ein Alkali- alkoholat des n-Butanols verwendet. Process according to claim, characterized in that the implementation is carried out in the presence of a condensation agent. 2. The method according to claim and dependent claim 1, characterized in that an alkali alcoholate of n-butanol is used as the condensing agent.
CH268331D 1948-08-31 1948-08-31 Process for the preparation of a new naphthyridine derivative. CH268331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH268331T 1948-08-31

Publications (1)

Publication Number Publication Date
CH268331A true CH268331A (en) 1950-05-15

Family

ID=4476833

Family Applications (1)

Application Number Title Priority Date Filing Date
CH268331D CH268331A (en) 1948-08-31 1948-08-31 Process for the preparation of a new naphthyridine derivative.

Country Status (1)

Country Link
CH (1) CH268331A (en)

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