BE877096R - DERIVATIVES OF METHYL-2 PHENOXY-2 PROPIONIC ACIDS, THEIR PROCESS OF PREPARATION AND THEIR APPLICATIONS IN THERAPEUTICS - Google Patents

DERIVATIVES OF METHYL-2 PHENOXY-2 PROPIONIC ACIDS, THEIR PROCESS OF PREPARATION AND THEIR APPLICATIONS IN THERAPEUTICS

Info

Publication number
BE877096R
BE877096R BE0/195836A BE195836A BE877096R BE 877096 R BE877096 R BE 877096R BE 0/195836 A BE0/195836 A BE 0/195836A BE 195836 A BE195836 A BE 195836A BE 877096 R BE877096 R BE 877096R
Authority
BE
Belgium
Prior art keywords
calcium
acid
phenoxy
preparation
methyl
Prior art date
Application number
BE0/195836A
Other languages
French (fr)
Original Assignee
Rolland Sa A
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 Rolland Sa A filed Critical Rolland Sa A
Priority to BE0/195836A priority Critical patent/BE877096R/en
Application granted granted Critical
Publication of BE877096R publication Critical patent/BE877096R/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/38Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/52Radicals substituted by nitrogen atoms not forming part of a nitro radical

Description

       

   <EMI ID=1.1> 

  
de préparation et leurs applications en thérapeutique. 

  
La présente invention concerne le sel de calcium de l'acide
(furyl-2 butoxyimino méthyl)-4 phênoxy-2 propionique, de formule :

  

 <EMI ID=2.1> 


  
Du fait de la présence dans cette molécule du groupement oximino, deux stéréoisomères existent et l'invention concerne l'isomère Z comme l'isomère E et leurs mélanges, elle concerne aussi la préparation des sels de calcium à partir des acides décrits dans le brevet belge n[deg.] 863 550 et l'utilisation comme médicaments de ces sels.

  
La salification des acides est effectuée par exemple par actio de l'hydroxyde de calcium sur l'acide en solution dans le méthanol, ou encore par action du chlorure de calcium sur une solution du sel de sodium de l'acide dans l'éthanol..

  
L'acide, obtenu comme décrit dans l'exemple 28 du brevet belge

  
 <EMI ID=3.1> 

  
L'isomère minoritaire de l'acide est obtenu avec 60% de rendement en recristallisant ce mélange d'abord dans le xylène puis dans l'oxyde de diisopropyle. Il fond à 122[deg.]C.

  
Son sel de calcium est préparé par exemple comme suit :

  
6 g d'acide sont dissous dans 20 ml d'eau contenant

  
1 équivalent d'hydroxyde de sodium (0,7g) ; on ajoute alors

  
1 équivalent de chlorure de calcium (0,95 g) en solution dans
20 ml d'eau. Le précipité apparu est filtré, abondamment lavé à l'eau, séché puis recristallisé dans l'éthanol pour donner, avec 80 % de rendement, le sel qui fond à 317[deg.]C (avec décomposition)

  
L'isomère majoritaire beaucoup plus soluble que son homologue, peut en être séparé par exemple par dissolution fractionnée dans le cyclohexane. Son sel de calcium est préparé par exemple comme suit :

  
On dissout 6 g d'acide, à 95 % de l'isomère majoritaire, dans
60 ml de méthanol, et ajoute 1,85 g d'hydroxyde de calcium

  
à la solution. Après un léger reflux, on refroidit la solution filtre le léger précipité apparu et ajoute deux volumes d'eau pour précipiter le sel de calcium de l'acide qu'on obtient ave 90 % de rendement. Ce sel est difficile à déshydrater et doit être desséché par maintien à 80[deg.]C plusieurs heures. Il fond à 325[deg.]C (avec décomposition).

  
On peut aussi préparer ce sel par double échange en milieu aqueux ou alcoolique comme décrit précédemment, pour l'isomère minoritaire à partir du sel de sodium ou d'ammonium ; les rendements sont équivalents.

  
Le mélange en quantités équivalentes des deux isomères de

  
 <EMI ID=4.1> 

  
purs pourra être isolé par dissolution ou recristallisation fractionnée.

  
Les analyses centésimales des composés isolés répondent aux* normes habituellement admises.

  
Ces nouveaux composés, sels de calcium de chacun des isomères

  
 <EMI ID=5.1> 

  
acides correspondants, tant comme hypocholestérolémiants que comme

  
 <EMI ID=6.1> 

  
administration par voie orale, et se révèle supérieure à 1000 mg/kg.

  
L'activité hypocholestérolémiante a été mise en évidence chez la souris hypercholestérolémiée par injection préalable de Triton  Les taux de diminution de cholestérol dans le plasma des animaux ayant reçu par voie orale 100 mg/kg des produits, selon l'invention, par rapport aux animaux n'ayant reçu que les excipients, est de 32 % pour l'isomère majoritaire et de 39 % pour l'isomère minoritaire,

  
la différence n'étant pas statistiquement significative.

  
Les sels de calcium de chacun des stéréoisomères ou de leurs mélanges peuvent être utilisés en thérapeutique humaine, associés au:
excipients usuels et à des doses journalières de 50 à 250 mg.



   <EMI ID = 1.1>

  
preparation and their therapeutic applications.

  
The present invention relates to the calcium salt of the acid
(2-furyl butoxyimino methyl) -4-2-phenoxypropionic, of formula:

  

 <EMI ID = 2.1>


  
Due to the presence in this molecule of the oximino group, two stereoisomers exist and the invention relates to the Z isomer like the E isomer and their mixtures, it also relates to the preparation of calcium salts from the acids described in the patent. Belgian n [deg.] 863 550 and the use as medicaments of these salts.

  
The salification of the acids is carried out for example by actio of calcium hydroxide on the acid in solution in methanol, or else by the action of calcium chloride on a solution of the sodium salt of the acid in ethanol. .

  
The acid, obtained as described in Example 28 of the Belgian patent

  
 <EMI ID = 3.1>

  
The minor isomer of the acid is obtained with a 60% yield by recrystallizing this mixture first from xylene and then from diisopropyl oxide. It melts at 122 [deg.] C.

  
Its calcium salt is prepared for example as follows:

  
6 g of acid are dissolved in 20 ml of water containing

  
1 equivalent of sodium hydroxide (0.7 g); we then add

  
1 equivalent of calcium chloride (0.95 g) dissolved in
20 ml of water. The precipitate which appears is filtered, washed with copious amounts of water, dried and then recrystallized from ethanol to give, with 80% yield, the salt which melts at 317 [deg.] C (with decomposition).

  
The majority isomer, which is much more soluble than its homologue, can be separated therefrom, for example by fractional dissolution in cyclohexane. Its calcium salt is prepared for example as follows:

  
6 g of acid, 95% of the major isomer, are dissolved in
60 ml of methanol, and add 1.85 g of calcium hydroxide

  
to the solution. After a slight reflux, the solution is cooled, filters the slight precipitate which has appeared and two volumes of water are added to precipitate the calcium salt of the acid which is obtained with a 90% yield. This salt is difficult to dehydrate and must be dried by holding at 80 [deg.] C for several hours. It melts at 325 [deg.] C (with decomposition).

  
This salt can also be prepared by double exchange in an aqueous or alcoholic medium as described above, for the minority isomer from the sodium or ammonium salt; the yields are equivalent.

  
The mixture in equivalent amounts of the two isomers of

  
 <EMI ID = 4.1>

  
pure can be isolated by dissolution or fractional recrystallization.

  
The centesimal analyzes of the isolated compounds meet the standards usually accepted.

  
These new compounds, calcium salts of each of the isomers

  
 <EMI ID = 5.1>

  
corresponding acids, both as cholesterol lowering agents and as

  
 <EMI ID = 6.1>

  
oral administration, and is found to be greater than 1000 mg / kg.

  
The hypocholesterolemic activity has been demonstrated in hypercholesterolemic mice by prior injection of Triton. having received only the excipients, is 32% for the major isomer and 39% for the minor isomer,

  
the difference is not statistically significant.

  
The calcium salts of each of the stereoisomers or of their mixtures can be used in human therapy, associated with:
usual excipients and in daily doses of 50 to 250 mg.


    

Claims (1)

<EMI ID=7.1> <EMI ID = 7.1> 1. Les deux stéréoisomêres du sel de calcium de l'acide (furyl-2 butoxyiminométhyl) -4 phënoxy-2 propionique et leurs mélanges. 1. The two stereoisomers of the calcium salt of acid (2-furyl butoxyiminomethyl) -4-2-phenoxypropionic and mixtures thereof. 2. Procédé de préparation des sels de calcium selon la revendication 1, caractérisé en ce que l'on fait réagir l'hydroxyde de calcium sur l'acide correspondant. 2. Process for preparing calcium salts according to claim 1, characterized in that the calcium hydroxide is reacted with the corresponding acid. 3. Procédé de préparation des sels de calcium selon la revendication 1, caractérisé en ce que l'on fait réagir un halogènure de calcium sur les sels solubles de l'acide correspondant. 3. A process for preparing calcium salts according to claim 1, characterized in that a calcium halide is reacted with the soluble salts of the corresponding acid. 4. Composition pharmaceutique contenant à titre de principe actif au moins l'un des stéréoisomères du sel de calcium de l'acide (furyl-2 butoxyiminométhyl) -4 phénoxy-2 propionique. 4. Pharmaceutical composition containing as active principle at least one of the stereoisomers of the calcium salt of the acid. (2-furyl butoxyiminomethyl) -4-phenoxy-2 propionic.
BE0/195836A 1979-06-19 1979-06-19 DERIVATIVES OF METHYL-2 PHENOXY-2 PROPIONIC ACIDS, THEIR PROCESS OF PREPARATION AND THEIR APPLICATIONS IN THERAPEUTICS BE877096R (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE0/195836A BE877096R (en) 1979-06-19 1979-06-19 DERIVATIVES OF METHYL-2 PHENOXY-2 PROPIONIC ACIDS, THEIR PROCESS OF PREPARATION AND THEIR APPLICATIONS IN THERAPEUTICS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE0/195836A BE877096R (en) 1979-06-19 1979-06-19 DERIVATIVES OF METHYL-2 PHENOXY-2 PROPIONIC ACIDS, THEIR PROCESS OF PREPARATION AND THEIR APPLICATIONS IN THERAPEUTICS
BE877096 1979-06-19

Publications (1)

Publication Number Publication Date
BE877096R true BE877096R (en) 1979-10-15

Family

ID=25651518

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/195836A BE877096R (en) 1979-06-19 1979-06-19 DERIVATIVES OF METHYL-2 PHENOXY-2 PROPIONIC ACIDS, THEIR PROCESS OF PREPARATION AND THEIR APPLICATIONS IN THERAPEUTICS

Country Status (1)

Country Link
BE (1) BE877096R (en)

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