CH311592A - Process for making a new salt. - Google Patents

Process for making a new salt.

Info

Publication number
CH311592A
CH311592A CH311592DA CH311592A CH 311592 A CH311592 A CH 311592A CH 311592D A CH311592D A CH 311592DA CH 311592 A CH311592 A CH 311592A
Authority
CH
Switzerland
Prior art keywords
methyl
acid
anilide
new salt
chloro
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 CH311592A publication Critical patent/CH311592A/en

Links

Description

  

  Verfahren zur Herstellung eines neuen Salzes.         (regeixstand    des vorliegenden Patentes ist  ein Verfahren zur Herstellung eines neuen  Salzes, welches dadurch gekennzeichnet ist,,  dass man     N-Pyrrolidinoessigsäure-(2-clxlor-6-          methyl-anilid)    mit Apfelsäure zur Reaktion  bringt. Man kann die Umsetzung in einem       Lösungsmittel,    wie z. B. Alkohol, Äther, Ben  zol,     Diovan,    Wasser,     Wasser-Allcoholgemi-          sehen,    vornehmen.  



  plan kann zur Ausführung des erfindungs  gemässen Verfahrens auch so vorgehen, dass  man ein solches Salz des N-Pyri-olidino-essig-  s     iiure    (     2-chlor-6-methyl-anilides)    mit einem  solchen Salz der Apfelsäure zusammenbringt,  ans     welchen    sich durch     Umsetzung    inter  mediär das freie     N-Pyrrolidinoessigsäiix'e-(2-          elilor-6-methyl-anilid)    und die freie Apfel  säure bilden.

   Das Reaktionsprodukt besteht in  diesem Falle aus zwei     Salzen;    je nach der  Löslichkeit     und        Kristallisationstendenz    der  selben tritt das     N-Pyx-rolidinoessigsäure-(2-          ehlor-6-methyl-anilid)-hydx,ogen-malat    als er  stes oder als zweites     Kristallisat    auf.  



  Das so erhaltene     N-Pyrrolidinoessigsätire-          (2-ehloi#-6-methyl-anilid)-hydrogen-malat    bil-         det    farblose Kristalle, die bei     127-128      schmelzen. Das neue Salz soll als Lokal  anästhetikum verwendet werden.  



       Beispiel:     5 g     N-Pyrrolidinoessigsäure-(2-chlor-6-me-          thyl-anilicl)    in 10 cm- Aceton werden mit  einer Lösung von 2,65 g Apfelsäure in 10     cm3     Aceton versetzt. Nach kurzer Zeit tritt Kri  stallisation ein. Nach einiger Zeit werden die  gebildeten Kristalle abgesaugt, mit Äther ge  waschen und dann getrocknet. Man erhält 6 g  des bei 127-128  schmelzenden     N-Pvrrolidino-          essigsä.ure-        (2-chlor-6-methyl-anilid)        -hydrogen-          malates.  



  Process for making a new salt. (Regeixstand of the present patent is a process for the production of a new salt, which is characterized in that N-pyrrolidinoacetic acid- (2-clxlor-6-methyl-anilide) is reacted with malic acid. The reaction can be carried out in a solvent such as alcohol, ether, benzene, diovan, water, water-alcohol mixtures.



  To carry out the process according to the invention, plan can also proceed in such a way that such a salt of N-pyri-olidino-acetic acid (2-chloro-6-methyl-anilides) is brought together with such a salt of malic acid, which is form the free N-pyrrolidinoacetic acid (2-elilor-6-methyl-anilide) and the free malic acid by intermediate reaction.

   The reaction product in this case consists of two salts; Depending on the solubility and crystallization tendency of the same, the N-pyx-rolidinoacetic acid- (2-chloro-6-methyl-anilide) -hydx, ogen-malate occurs as the first or second crystallizate.



  The N-pyrrolidinoacetic acid (2-ehloi # -6-methyl-anilide) -hydrogen malate thus obtained forms colorless crystals which melt at 127-128. The new salt is intended to be used as a local anesthetic.



       Example: 5 g of N-pyrrolidinoacetic acid (2-chloro-6-methyl-anilicl) in 10 cm acetone are mixed with a solution of 2.65 g of malic acid in 10 cm 3 of acetone. Crystallization occurs after a short time. After a while, the crystals formed are filtered off with suction, washed with ether and then dried. 6 g of N-pyrrolidino-acetic acid (2-chloro-6-methyl-anilide) -hydrogen malate, which melts at 127-128, are obtained.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines neuen Salzes, dadurch gekennzeichnet, dass man N Pyrrolidinoessigsäure-(2-ehlor-6-methyl-anilid) mit Apfelsäure zur Reaktion bringt. Das resultierende N-Pyrrolidino-essigsäure- (2-ehlor-6-methyl-anilid)-hy drogen-malatbildet farblose, bei 127-128 schmelzende Kristalle; es soll als Lokalanästhetikum verwendet wer den, PATENT CLAIM Process for producing a new salt, characterized in that N pyrrolidinoacetic acid (2-chloro-6-methyl-anilide) is reacted with malic acid. The resulting N-pyrrolidino-acetic acid- (2-chloro-6-methyl-anilide) -hydrogen malate forms colorless crystals melting at 127-128; it should be used as a local anesthetic
CH311592D 1952-02-25 1952-02-25 Process for making a new salt. CH311592A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH311592T 1952-02-25
CH306793T 1955-04-30

Publications (1)

Publication Number Publication Date
CH311592A true CH311592A (en) 1955-11-30

Family

ID=25735210

Family Applications (1)

Application Number Title Priority Date Filing Date
CH311592D CH311592A (en) 1952-02-25 1952-02-25 Process for making a new salt.

Country Status (1)

Country Link
CH (1) CH311592A (en)

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