CH183560A - Process for the preparation of a readily soluble salt of a 9-aminoacridine derivative. - Google Patents

Process for the preparation of a readily soluble salt of a 9-aminoacridine derivative.

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Publication number
CH183560A
CH183560A CH183560DA CH183560A CH 183560 A CH183560 A CH 183560A CH 183560D A CH183560D A CH 183560DA CH 183560 A CH183560 A CH 183560A
Authority
CH
Switzerland
Prior art keywords
preparation
readily soluble
soluble salt
aminoacridine
derivative
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH183560A publication Critical patent/CH183560A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D219/00Heterocyclic compounds containing acridine or hydrogenated acridine ring systems
    • C07D219/04Heterocyclic compounds containing acridine or hydrogenated acridine ring systems 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 carbon atoms of the ring system
    • C07D219/08Nitrogen atoms
    • C07D219/10Nitrogen atoms attached in position 9
    • C07D219/12Amino-alkylamino radicals attached in position 9

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

  

  Verfahren zur Herstellung eines leicht löslichen Salzes eines       9-Aminoacridiiiabvömmlings.            9-Aminoaeridine    und ihre Abkömmlinge,       ini        besonderen    solche, die an der     Amino-          gruppe    durch     Alkylgruppen    oder durch  basische -Reste, zum Beispiel     Aminoalkyl-          und        Alkylaminoalkylgruppen,    und am Kern  durch Halogenatome,     Nitro-,        Amino-,        Alkyl-,          Alkoxy-    und     All,:

  ylmercaptogi-uppen        substi-          i        uiert    sind, haben wegen ihrer hervorragen  den chemotherapeutischen Eigenschaften in       rler    Therapie Anwendung gefunden. Die       9-Aminoacridinverbindungen    wurden vor  nehmlich in Form ihrer Hydrochloride     an-          "ewa.ndt.    Die bisher     bekannten    Salze der       9-Aminoacii,dinverbindungen,    im     besonderen     auch die Hydrochloride, genügen zwar bei  der     peroralen    Anwendung den an sie gestell  ten Bedingungen.

   Für Injektionszwecke sind  sie im allgemeinen in Wasser nicht genügend  löslich.  



  Es wurde nun .gefunden,     .dass    man zu in       Wasser    .gut löslichen Salzen des     9-Amino-          acridins    und seiner     Substitutionsprodukte    ge-    laugt, wenn man das     9-Aminoacridin    -oder  seine     Substitutiousprodukte    in ihre     Salze    mit       Alkylsulfonsäuren    umwandelt. Die Salze  zeichnen sich nicht nur durch grosse Wasser  löslichkeit aus, .sie lassen sich auch     glatt    in  reiner kristalliner Form .darstellen.

   Die Um  setzung zu den Salzen der     Alkylsulfon-          säuren,    zum Beispiel der     Methansulfonsäure,          Äthansulfonsäure    und dergleichen, erfolgt  zweckmässig durch Neutralisieren der     Acri-          dinbase    durch die     Alkylsulfonsäure    in Gegen  wart eines geeigneten Lösemittels, wie zum  Beispiel Alkohol. Die neuen     -Salze    lösen sich  in Wasser zu neutralen Lösungen und lassen  sich für die intravenöse und intramuskuläre  Injektion verwenden.  



  Die grosse Löslichkeit der     alkylsulfon-          sauren    Salze der     9-Aminoacridine    überrascht  besonders insofern, als die Salze mit andern  organischen     Sulfonsäuren,    zum     Beispiel    mit  der     Benzolsulfonsäure,    nur wenig in kaltem  Wasser löslich     sind.         Gegenstand des vorliegenden Patentes ist  ein Verfahren zur Darstellung eines     leichl     löslichen Salzes eines     9-Aminoacridinabkömm-          lings,    dadurch gekennzeichnet, dass man das  2 -     Methoxy-    6     -,

  chlor-9-(a--diäthyl.amino-d-pen-          tylamino)-acridin    mit     Methansulfonsäure    neu  tralisiert. Die     Reaktion        wird    zweckmässig in  Gegenwart eines Lösemittels, zum Beispiel  Alkohol, vorgenommen.  



  Das so erhältliche, neue     dimethansulfon-          saure    Salz des zuvor erwähnten     9-Aminoacri-          dinderivates    bildet gelbe Kristalle vom F. P.  <B>125'.</B> Es ist sehr leicht löslich in Wasser  und soll als     Arzneimittel    Verwendung fin  den.  



  <I>Beispiel:</I>  Zu einer Lösung von 80 g     2-Methoxy-6-          chlor-9-(a-diäthylamino-ö-pentylamino)        -acri-          din    in 500 cm' Alkohol werden 88,5 g     Me-          thansulfonsäure    hinzugefügt.

   Zur heissen  alkoholischen Lösung gibt man 1 Liter     Essig-          säureäthvlester.    Beim     Abkühlen    kristallisiert  das     Dimethan-sulfonat    des     2-Methoxy-6-          chlor-9-(a-diäthylamino-ö-pentylamino)        -acri-          dins    in guter     Ausbeute    in Form gelber Kri  stalle vom     ,Schmelzpunkt   <B>125'</B> aus. Es löst  sieb sehr leicht in Wasser: 40 cm' Wasser  lösen zum Beispiel bei<B>920'</B> 60 g des Salzes    zu einer klaren Lösung. Trotz seiner grossen  Löslichkeit ist das Salz nicht hygroskopisch  und kann daher an der Luft aufbewahrt  werden.



  Process for the preparation of a readily soluble salt of a 9-aminoacridide derivative. 9-Aminoaeridines and their derivatives, in particular those which are attached to the amino group by alkyl groups or by basic radicals, for example aminoalkyl and alkylaminoalkyl groups, and on the nucleus by halogen atoms, nitro, amino, alkyl, alkoxy and Alles,:

  ylmercaptogi groups are substituted, because of their excellent chemotherapeutic properties, have found application in therapy. The 9-aminoacridine compounds were primarily used in the form of their hydrochlorides. The previously known salts of the 9-aminoacridine compounds, and in particular the hydrochlorides, certainly meet the requirements for oral use.

   They are generally not sufficiently soluble in water for injection purposes.



  It has now been found that salts of 9-amino acridine and its substitution products which are readily soluble in water are leached if the 9-amino acridine or its substitute products are converted into their salts with alkyl sulfonic acids. The salts are not only characterized by their high solubility in water, they can also be represented smoothly in pure crystalline form.

   The conversion to the salts of the alkylsulfonic acids, for example methanesulfonic acid, ethanesulfonic acid and the like, is expediently carried out by neutralizing the acridine base with the alkylsulfonic acid in the presence of a suitable solvent, such as alcohol. The new salts dissolve in water to form neutral solutions and can be used for intravenous and intramuscular injection.



  The great solubility of the alkylsulphonic acid salts of the 9-aminoacridines is particularly surprising insofar as the salts with other organic sulphonic acids, for example with benzenesulphonic acid, are only slightly soluble in cold water. The subject of the present patent is a process for the preparation of a readily soluble salt of a 9-aminoacridine derivative, characterized in that the 2 - methoxy-6 -,

  chlorine-9- (a - diethyl.amino-d-pen- tylamino) -acridine neutralized with methanesulfonic acid. The reaction is expediently carried out in the presence of a solvent, for example alcohol.



  The new dimethanesulfonic acid salt of the aforementioned 9-aminoacridine derivative that can be obtained in this way forms yellow crystals of the F.P. 125 '. It is very easily soluble in water and is intended to be used as a medicinal product.



  <I> Example: </I> To a solution of 80 g of 2-methoxy-6-chloro-9- (a-diethylamino-ö-pentylamino) acridine in 500 cm of alcohol are added 88.5 g of thanesulfonic acid added.

   1 liter of ethyl acetate is added to the hot alcoholic solution. On cooling, the dimethane sulfonate of 2-methoxy-6-chloro-9- (a-diethylamino-ö-pentylamino) -acridine crystallizes in good yield in the form of yellow crystals with a melting point of 125 '/ B > off. It dissolves very easily in water: 40 cm 'water dissolves for example <B> 920' </B> 60 g of the salt to a clear solution. Despite its high solubility, the salt is not hygroscopic and can therefore be kept in the air.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung eines leicht löslichen Salzes eines 9-Aminoacridinabkömm- lings, :dadurch gekennzeichnet, dass man das 2 -Methoxy- 6 - chlor-9-(a-.diäthylamino-ö-pen- tylamino)-acridin mit Methansulfonsäure neu tralisiert. Das so erhältliche dimetha.nsulfonsaure Salz des zuvor erwähnten 9-Aminoacridin- derivates bildet gelbe Kristalle vom F. P. 125 . Es ist in Wasser sehr leicht löslich. UNTERANSPRüCHE: 1. PATENT CLAIM: Process for the preparation of a readily soluble salt of a 9-aminoacridine derivative: characterized in that the 2-methoxy-6-chloro-9- (α-diethylamino-δ-pentylamino) acridine is reacted with methanesulfonic acid centralized. The dimetha.nsulfonic acid salt of the aforementioned 9-aminoacridine derivative which can be obtained in this way forms yellow crystals from F. P. 125. It is very easily soluble in water. SUBCLAIMS: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man in Gegenwart eines Lösemittels arbeitet. ?. Verfahren nach Patentanspruch und Un teranspruch 1, dadurch gekennzeichnet, dass man als Lösemittel Alkohol verwen det. Process according to patent claim, characterized in that one works in the presence of a solvent. ?. Method according to patent claim and sub-claim 1, characterized in that alcohol is used as the solvent.
CH183560D 1935-04-17 1935-04-17 Process for the preparation of a readily soluble salt of a 9-aminoacridine derivative. CH183560A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH183560T 1935-04-17

Publications (1)

Publication Number Publication Date
CH183560A true CH183560A (en) 1936-04-15

Family

ID=4432394

Family Applications (1)

Application Number Title Priority Date Filing Date
CH183560D CH183560A (en) 1935-04-17 1935-04-17 Process for the preparation of a readily soluble salt of a 9-aminoacridine derivative.

Country Status (1)

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CH (1) CH183560A (en)

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