CH484173A - Process for the preparation of a new oxazolidinone - Google Patents

Process for the preparation of a new oxazolidinone

Info

Publication number
CH484173A
CH484173A CH1432069A CH1432069A CH484173A CH 484173 A CH484173 A CH 484173A CH 1432069 A CH1432069 A CH 1432069A CH 1432069 A CH1432069 A CH 1432069A CH 484173 A CH484173 A CH 484173A
Authority
CH
Switzerland
Prior art keywords
formula
preparation
compound
oxazolidinone
isopropyl
Prior art date
Application number
CH1432069A
Other languages
German (de)
Inventor
Max Dr Wilhelm
Karl Dr Schenker
Paul Dr Schmidt
Ulrich Dr Daeniker Hans
Original Assignee
Ciba Geigy
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 Ciba Geigy filed Critical Ciba Geigy
Priority to CH1432069A priority Critical patent/CH484173A/en
Priority claimed from CH1432269A external-priority patent/CH490405A/en
Priority claimed from CH1585465A external-priority patent/CH500216A/en
Publication of CH484173A publication Critical patent/CH484173A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D263/00Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
    • C07D263/02Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
    • C07D263/08Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
    • C07D263/16Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member 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
    • C07D263/18Oxygen atoms
    • C07D263/20Oxygen atoms attached in position 2
    • C07D263/24Oxygen atoms attached in position 2 with hydrocarbon radicals, substituted by oxygen atoms, attached to other ring carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

Description

  

  



  Verfahren zur Herstellung eines neuen Oxazolidinons
Gegenstand der Erfindung ist ein Verfahren zur Herstellung des   3-Isopropyl-5-(o-allyloxy-phenoxy-      methyl)oxazolidinons-2    der Formel
EMI1.1     

Die neue Verbindung besitzt wertvolle pharmakologische Eigenschaften. Insbesondere hemmt sie adrenergische ss-Rezeptoren, wie sich im Tierversuch, z. B. an Katzen und isolierten Meerschweinchenherzen zeigt. So zeigt sie beispielsweise an Katzen bei intravenöser Gabe in Dosen von 0,01 bis   0, 1 mg/kg    eine ausgesprochene ss-blockierende Wirkung. Die neue Verbindung kann daher bei Angina pectoris oder Herzrhythmusstörungen Verwendung finden.

   Die neue Verbindung ist aber auch ein wertvolles Zwischenprodukt für die Herstellung von anderen nützlichen Stoffen, insbesondere von pharmakologisch wirksamen Verbindungen, wie z. B. des im Schweizer Patent Nr.



     451 114    beschriebenen 1-Isopropylamino-2-hydroxy  3-(o-allyloxyphenoxy)-propans.   



   Das erfindungsgemässe Verfahren zur Herstellung der neuen Verbindungen ist dadurch gekennzeichnet, dass man in die Verbindung der Formel
EMI1.2     
 den Isopropylrest einführt.



   Die Reaktion kann in üblicher Weise erfolgen, vorzugsweise durch Umsetzen mit einem reaktionsfähigen Ester des Isopropanols. Ein reaktionsfähiger Ester ist dabei vor allem ein Ester einer starken anorganischen oder organischen Säure, wie z. B. einer Halogenwasserstoffsäure, wie Chlor-, Brom- oder Jodwasserstoffsäure, oder einer Sulfonsäure, z. B. einer Arylsulfonsäure, wie der p-Toluolsulfonsäure. Vorteilhaft verwendet man die Verbindung der Formel II in Form eines Metallsalzes, z. B. eines Alkali-, wie Natriumoder Kaliumsalzes, oder man arbeitet in Gegenwart eines zur Bildung solcher Salze geeigneten Kondensationsmittels.



   Die Ausgangsstoffe sind bekannt oder können nach an sich bekannten Methoden gewonnen werden.



   Die neuen Verbindungen können als Racemate oder in Form der Antipoden vorliegen. Die Racemate lassen sich in üblicher Weise in die Antipoden zerlegen. Vorteilhaft isoliert man den wirksameren Antipoden.



   Die neuen Verbindungen können z. B. in Form pharmazeutischer Präparate Verwendung finden, welche sie in Mischung mit einem für die enterale oder parenterale Applikation geeigneten pharmazeutischen organischen oder anorganischen, festen oder flüssigen Trägermaterial enthalten.



   Im folgenden Beispiel sind die Temperaturen in Celsiusgraden angegeben.



   Beispiel
12,5 g 5-(o-Allyloxy-phenoxymethyl)-oxazolidinon (2) werden mit 1,2 g Natriumhydrid in 200 ml Toluol während einer Stunde unter Rühren auf   80C    erwärmt.



  Anschliessend tropft man bei derselben Temperatur 7 g Isopropylbromid zu. Nach 4 Stunden werden 10 ml   Athanol    und nachher 100 ml Wasser zugegeben. Die organische Schicht wird abgetrennt, und das Lösungsmittel wird eingedampft. Durch Umkristallisation des Rückstandes aus Methylenchlorid-Petroläther erhält man 3-Isopropyl-5-(o-allyloxy-phenoxymethyl)-oxazolidinon-2 der Formel
EMI2.1     
 in Kristallen von F.   58-60    
Das als Ausgangsmaterial verwendete 5-(o-Allyl  oxy-phenoxyrnethyl)-oxazolidinon-(2)    kann hergestellt werden durch Umsetzung von 70 g Brenzkatechinmonoallyläther mit 70 g 5-Chlormethyl-oxazolidinon in 200 ml Aceton in Gegenwart von 50 ml Pottasche.



  Nach 12 Stunden Kochen wird das Reaktionsgemisch filtriert und eingedampft. Den Rückstand kristallisiert man aus Isopropanol um.



  



  Process for the preparation of a new oxazolidinone
The invention relates to a process for the preparation of 3-isopropyl-5- (o-allyloxyphenoxymethyl) -oxazolidinone-2 of the formula
EMI1.1

The new compound has valuable pharmacological properties. In particular, it inhibits adrenergic SS receptors, as shown in animal experiments, e.g. B. shows on cats and isolated guinea pig hearts. For example, it shows a pronounced SS-blocking effect in cats when given intravenously in doses of 0.01 to 0.1 mg / kg. The new compound can therefore be used for angina pectoris or cardiac arrhythmias.

   The new compound is also a valuable intermediate for the production of other useful substances, in particular of pharmacologically active compounds, such as. B. the in Swiss patent no.



     451 114 described 1-isopropylamino-2-hydroxy 3- (o-allyloxyphenoxy) propane.



   The process according to the invention for preparing the new compounds is characterized in that the compound of the formula
EMI1.2
 introduces the isopropyl radical.



   The reaction can take place in the usual way, preferably by reaction with a reactive ester of isopropanol. A reactive ester is above all an ester of a strong inorganic or organic acid, such as. B. a hydrohalic acid such as chloric, bromic or hydroiodic acid, or a sulfonic acid, e.g. B. an aryl sulfonic acid, such as p-toluenesulfonic acid. The compound of formula II is advantageously used in the form of a metal salt, e.g. B. an alkali, such as sodium or potassium salt, or one works in the presence of a condensation agent suitable for forming such salts.



   The starting materials are known or can be obtained by methods known per se.



   The new compounds can exist as racemates or in the form of the antipodes. The racemates can be broken down into the antipodes in the usual way. It is advantageous to isolate the more effective antipode.



   The new connections can e.g. B. can be used in the form of pharmaceutical preparations which contain them as a mixture with a pharmaceutical, organic or inorganic, solid or liquid carrier material suitable for enteral or parenteral administration.



   In the following example the temperatures are given in degrees Celsius.



   example
12.5 g of 5- (o-allyloxyphenoxymethyl) oxazolidinone (2) are heated to 80 ° C. with 1.2 g of sodium hydride in 200 ml of toluene for one hour while stirring.



  7 g of isopropyl bromide are then added dropwise at the same temperature. After 4 hours, 10 ml of ethanol and then 100 ml of water are added. The organic layer is separated and the solvent is evaporated. Recrystallization of the residue from methylene chloride petroleum ether gives 3-isopropyl-5- (o-allyloxyphenoxymethyl) -oxazolidinone-2 of the formula
EMI2.1
 in crystals of F. 58-60
The 5- (o-allyl oxy-phenoxyrnethyl) -oxazolidinone- (2) used as starting material can be prepared by reacting 70 g of pyrocatechol monoallyl ether with 70 g of 5-chloromethyl-oxazolidinone in 200 ml of acetone in the presence of 50 ml of potash.



  After boiling for 12 hours, the reaction mixture is filtered and evaporated. The residue is recrystallized from isopropanol.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung des 3-Isopropyl-5-(oallyloxy-phenoxy-methyl)-oxazolidinons-2 der Formel EMI2.2 dadurch gekennzeichnet, dass man in die Verbindung der Formel EMI2.3 den Isopropylrest einführt. PATENT CLAIM Process for the preparation of 3-isopropyl-5- (oallyloxy-phenoxy-methyl) -oxazolidinons-2 of the formula EMI2.2 characterized in that in the compound of the formula EMI2.3 introduces the isopropyl radical. UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Verbindung der Formel II in Form eines Metallsalzes mit einem reaktionsfähigen Ester des Isopropanols umsetzt. SUBCLAIMS 1. The method according to claim, characterized in that the compound of formula II is reacted in the form of a metal salt with a reactive ester of isopropanol. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man die Verbindung der Formel II in Form ihres Natriumsalzes mit einem reaktionsfähigen Ester des Isopropanols umsetzt. 2. The method according to claim, characterized in that the compound of formula II is reacted in the form of its sodium salt with a reactive ester of isopropanol. 3. Verfahren nach Patentanspruch oder einem der Unteransprüche 1 und 2, dadurch gekennzeichnet, dass man mit Isopropylbromid, jodid, oder -chlorid umsetzt. 3. The method according to claim or one of the dependent claims 1 and 2, characterized in that it is reacted with isopropyl bromide, iodide or chloride. 4. Verfahren nach Patentanspruch oder einem der Unteransprüche 1 und 2, dadurch gekennzeichnet, dass man erhaltene Racemate aufspaltet. 4. The method according to claim or one of the dependent claims 1 and 2, characterized in that the racemates obtained are split.
CH1432069A 1965-07-09 1965-07-09 Process for the preparation of a new oxazolidinone CH484173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1432069A CH484173A (en) 1965-07-09 1965-07-09 Process for the preparation of a new oxazolidinone

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
CH1432069A CH484173A (en) 1965-07-09 1965-07-09 Process for the preparation of a new oxazolidinone
CH1432269A CH490405A (en) 1965-07-09 1965-07-09 Process for the preparation of new oxazolidine derivatives
CH962965A CH484172A (en) 1965-07-09 1965-07-09 Process for the preparation of a new oxazolidinone
CH1585465A CH500216A (en) 1965-07-09 1965-11-17 3-Isopropyl 5-phenoxymethyloxazolidines
CH1585565A CH512504A (en) 1965-07-09 1965-11-17 Process for the preparation of new oxazolidin-2-one compounds
CH505966A CH507271A (en) 1965-07-09 1966-04-06 Oxazolidinones inhibiting adrenergic beta-receptors
CH667066 1966-05-06

Publications (1)

Publication Number Publication Date
CH484173A true CH484173A (en) 1970-01-15

Family

ID=27561099

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1432069A CH484173A (en) 1965-07-09 1965-07-09 Process for the preparation of a new oxazolidinone

Country Status (1)

Country Link
CH (1) CH484173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086403A2 (en) * 1982-02-16 1983-08-24 MERCK PATENT GmbH 2-Oxazolidine-ones

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086403A2 (en) * 1982-02-16 1983-08-24 MERCK PATENT GmbH 2-Oxazolidine-ones
EP0086403A3 (en) * 1982-02-16 1984-10-10 MERCK PATENT GmbH 2-oxazolidine-ones

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