CH419162A - Process for the preparation of new oxazine derivatives - Google Patents

Process for the preparation of new oxazine derivatives

Info

Publication number
CH419162A
CH419162A CH553966A CH553966A CH419162A CH 419162 A CH419162 A CH 419162A CH 553966 A CH553966 A CH 553966A CH 553966 A CH553966 A CH 553966A CH 419162 A CH419162 A CH 419162A
Authority
CH
Switzerland
Prior art keywords
formula
preparation
radical
oxazine derivatives
oxazine
Prior art date
Application number
CH553966A
Other languages
German (de)
Inventor
Clauson-Kaas Niels
Rolf Dr Denss
Franz Dr Ostermayer
Ernst Dr Renk
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Priority to CH553966A priority Critical patent/CH419162A/en
Publication of CH419162A publication Critical patent/CH419162A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D498/00Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/02Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D498/04Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Description

  

  



  Verfahren zur Herstellung von neuen   Oxazinderivaten   
Die vorliegende Erfindung betrifft Verfahren zur Herstellung von neuen   Oxazinderivaten    mit wertvollen Pharmakologischen Eigenschaften.



   Es wurde   iiberraschende veise gefunden, dass      Oxazinderivate    der Formel T
EMI1.1     
 in der Ri Wasserstoff oder einen niederen Alkylrest bedeutet und Am den Rest eines heterocyclischen Amins, wie den   1-Pyrrolidinyl-,    Piperidino-, Hexa  hydroazepino-,      Morpho'ino-,      Piperazino-,    4'-Alkylpiperazino-,   4'-hyd ! roxyalkylpiterazino-oder    den 4'  Alkanoyioxyptperazinorest    bedeutet,   wertvoMe    phar  makologische Eigenschaften, insbesondere    analgetische, antipyretische, antiphlogistische,   muskelrelaxie-    rende sowie bakteriostatische und fungistatische   Wirk-    samkeit besitzen.

   Ferner zeigen sie hemmende Wirkung auf Monoaminooxydase. Sie sind aber auch wertvolle Zwischenprodukte, z. B. für die Herstellung von weiteren pharmakologisch wirksamen Stoffen sowie von   Schädlingsbekämpfungsmitteh.   



   Man erhält   erfihdungsgemäss    Verbindungen der Formel I indem man eine Formel der Formel II
EMI1.2     
 in der Ri die oben angegebene Bedeutung hat, mit Formaldehyd und eihem heterocyclischen Amin der Formel III,    Am-H (III)    in der Am die oben angegebene Bedeutung hat, umsetzt.



   Die Kondensation erfolgt vorzugsweise in wasserfreien Medien, z. B. in Dioxan,   nötigenfaMs    unter   Erwarmen.   



   Im nochfolgenden Beispiel   isibd    die Temperaturen in   Ce ! lisiusgraden    angegeben.



   Beispiel
100 ml einer Dioxanlösung, die 3-4 g Formaldehyd enthält, werden mit 5,0 g   N-Methylpiperazin    16 Stunden bei   25  stehengelassen.    Hierauf wird eine Lösung von 8,2 g 3,4-Dihydro-2,4-dioxo-2H-pyrido, [2,3-e]   [1,    3] oxazin in 200 ml Dioxan zugegeben und nochmals   20    Stunden stehengelassen. Nach dem Eindampfen im Vakuum   verMeibt    ein weisslicher   Rück-    stand von   
3- [N-(N'-Methyl)-piperazinomethyll]-3,4 dihydro-2, 4-dioxo-2H-pyrido-     [2,3-e]   [1,    3] oxazin, der mit 50 ml   Ather    gewaschen wird und bereits analysenrein ist ; Smp.   150-152 ,    Ausbeute   72%.   



  Analog wurde das   3- (N-Piperidinomethyl)-Derivat    hergestellt ; Smp.   145-147     (aus   Dibxan-Ather),    Ausbeute 60%.  



   PATENTANSPRUCH
Verfahren zur Herstellung von neuen Oxazinderivaten der Formel I 

**WARNUNG** Ende DESC Feld konnte Anfang CLMS uberlappen**.





  



  Process for the preparation of new oxazine derivatives
The present invention relates to processes for the preparation of new oxazine derivatives with valuable pharmacological properties.



   It has surprisingly been found that oxazine derivatives of the formula T
EMI1.1
 in which Ri is hydrogen or a lower alkyl radical and Am is the radical of a heterocyclic amine, such as the 1-pyrrolidinyl, piperidino, hexa hydroazepino, morpho'ino, piperazino, 4'-alkylpiperazino, 4'-hyd! Roxyalkylpiterazino or the 4 'alkanoyioxyptperazino radical means having valuable pharmacological properties, in particular analgesic, antipyretic, antiphlogistic, muscle-relaxing and bacteriostatic and fungistatic activity.

   They also show an inhibitory effect on monoamine oxidase. But they are also valuable intermediates, e.g. B. for the production of other pharmacologically active substances and pest control agents.



   According to the invention, compounds of the formula I are obtained by adding a formula of the formula II
EMI1.2
 in which Ri has the meaning given above, with formaldehyde and eihem heterocyclic amine of the formula III, Am-H (III) in which Am has the meaning given above.



   The condensation is preferably carried out in anhydrous media, e.g. B. in dioxane, necessary under warming.



   In the example below, the temperatures in Ce! lisius degrees indicated.



   example
100 ml of a dioxane solution containing 3-4 g of formaldehyde are left to stand at 25 for 16 hours with 5.0 g of N-methylpiperazine. A solution of 8.2 g of 3,4-dihydro-2,4-dioxo-2H-pyrido, [2,3-e] [1, 3] oxazine in 200 ml of dioxane is then added and the mixture is left to stand for another 20 hours. After evaporation in vacuo, a whitish residue of
3- [N- (N'-methyl) -piperazinomethyll] -3,4 dihydro-2, 4-dioxo-2H-pyrido- [2,3-e] [1, 3] oxazine, which was washed with 50 ml of ether becomes and is already analytically pure; M.p. 150-152, yield 72%.



  The 3- (N-piperidinomethyl) derivative was prepared analogously; M.p. 145-147 (from Dibxan ether), yield 60%.



   PATENT CLAIM
Process for the preparation of new oxazine derivatives of the formula I.

** WARNING ** End of DESC field could overlap beginning of CLMS **.



 

Claims (1)

**WARNUNG** Anfang CLMS Feld konnte Ende DESC uberlappen **. ** WARNING ** Beginning of CLMS field could overlap end of DESC **. Verfahren zur Herstellung von neuen Oxazinderivaten Die vorliegende Erfindung betrifft Verfahren zur Herstellung von neuen Oxazinderivaten mit wertvollen Pharmakologischen Eigenschaften. Process for the preparation of new oxazine derivatives The present invention relates to processes for the preparation of new oxazine derivatives with valuable pharmacological properties. Es wurde iiberraschende veise gefunden, dass Oxazinderivate der Formel T EMI1.1 in der Ri Wasserstoff oder einen niederen Alkylrest bedeutet und Am den Rest eines heterocyclischen Amins, wie den 1-Pyrrolidinyl-, Piperidino-, Hexa hydroazepino-, Morpho'ino-, Piperazino-, 4'-Alkylpiperazino-, 4'-hyd ! roxyalkylpiterazino-oder den 4' Alkanoyioxyptperazinorest bedeutet, wertvoMe phar makologische Eigenschaften, insbesondere analgetische, antipyretische, antiphlogistische, muskelrelaxie- rende sowie bakteriostatische und fungistatische Wirk- samkeit besitzen. It has surprisingly been found that oxazine derivatives of the formula T EMI1.1 in which Ri is hydrogen or a lower alkyl radical and Am is the radical of a heterocyclic amine, such as the 1-pyrrolidinyl, piperidino, hexa hydroazepino, morpho'ino, piperazino, 4'-alkylpiperazino, 4'-hyd! Roxyalkylpiterazino or the 4 'alkanoyioxyptperazino radical means having valuable pharmacological properties, in particular analgesic, antipyretic, antiphlogistic, muscle-relaxing and bacteriostatic and fungistatic activity. Ferner zeigen sie hemmende Wirkung auf Monoaminooxydase. Sie sind aber auch wertvolle Zwischenprodukte, z. B. für die Herstellung von weiteren pharmakologisch wirksamen Stoffen sowie von Schädlingsbekämpfungsmitteh. They also show an inhibitory effect on monoamine oxidase. But they are also valuable intermediates, e.g. B. for the production of other pharmacologically active substances and pest control agents. Man erhält erfihdungsgemäss Verbindungen der Formel I indem man eine Formel der Formel II EMI1.2 in der Ri die oben angegebene Bedeutung hat, mit Formaldehyd und eihem heterocyclischen Amin der Formel III, Am-H (III) in der Am die oben angegebene Bedeutung hat, umsetzt. According to the invention, compounds of the formula I are obtained by adding a formula of the formula II EMI1.2 in which Ri has the meaning given above, with formaldehyde and eihem heterocyclic amine of the formula III, Am-H (III) in which Am has the meaning given above. Die Kondensation erfolgt vorzugsweise in wasserfreien Medien, z. B. in Dioxan, nötigenfaMs unter Erwarmen. The condensation is preferably carried out in anhydrous media, e.g. B. in dioxane, necessary under warming. Im nochfolgenden Beispiel isibd die Temperaturen in Ce ! lisiusgraden angegeben. In the example below, the temperatures in Ce! lisius degrees indicated. Beispiel 100 ml einer Dioxanlösung, die 3-4 g Formaldehyd enthält, werden mit 5,0 g N-Methylpiperazin 16 Stunden bei 25 stehengelassen. Hierauf wird eine Lösung von 8,2 g 3,4-Dihydro-2,4-dioxo-2H-pyrido, [2,3-e] [1, 3] oxazin in 200 ml Dioxan zugegeben und nochmals 20 Stunden stehengelassen. Nach dem Eindampfen im Vakuum verMeibt ein weisslicher Rück- stand von 3- [N-(N'-Methyl)-piperazinomethyll]-3,4 dihydro-2, 4-dioxo-2H-pyrido- [2,3-e] [1, 3] oxazin, der mit 50 ml Ather gewaschen wird und bereits analysenrein ist ; Smp. 150-152 , Ausbeute 72%. example 100 ml of a dioxane solution containing 3-4 g of formaldehyde are left to stand at 25 for 16 hours with 5.0 g of N-methylpiperazine. A solution of 8.2 g of 3,4-dihydro-2,4-dioxo-2H-pyrido, [2,3-e] [1, 3] oxazine in 200 ml of dioxane is then added and the mixture is left to stand for another 20 hours. After evaporation in vacuo, a whitish residue of 3- [N- (N'-methyl) -piperazinomethyll] -3,4 dihydro-2, 4-dioxo-2H-pyrido- [2,3-e] [1, 3] oxazine, which was washed with 50 ml of ether becomes and is already analytically pure; M.p. 150-152, yield 72%. Analog wurde das 3- (N-Piperidinomethyl)-Derivat hergestellt ; Smp. 145-147 (aus Dibxan-Ather), Ausbeute 60%. The 3- (N-piperidinomethyl) derivative was prepared analogously; M.p. 145-147 (from Dibxan ether), yield 60%. PATENTANSPRUCH Verfahren zur Herstellung von neuen Oxazinderivaten der Formel I EMI2.1 in der Ri Wasserstoff oder einen niederen Alkylrest bedeutet, und Am den Rest eines hetterocydiischen Amins, bedeuten, dadurch gekennzeichnet, dass man eine Verbindung der Formell II EMI2.2 mit Formaldehyd und mit einem heterocyclischen Amin der Formel III, H-Am (III) umsetzt. PATENT CLAIM Process for the preparation of new oxazine derivatives of the formula I. EMI2.1 in which Ri denotes hydrogen or a lower alkyl radical, and Am denotes the radical of a heterocyclic amine, characterized in that a compound of the formula II EMI2.2 with formaldehyde and with a heterocyclic amine of the formula III, H-Am (III) implements.
CH553966A 1962-10-24 1962-10-24 Process for the preparation of new oxazine derivatives CH419162A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH553966A CH419162A (en) 1962-10-24 1962-10-24 Process for the preparation of new oxazine derivatives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH553966A CH419162A (en) 1962-10-24 1962-10-24 Process for the preparation of new oxazine derivatives

Publications (1)

Publication Number Publication Date
CH419162A true CH419162A (en) 1966-08-31

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CH (1) CH419162A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022058878A1 (en) * 2020-09-15 2022-03-24 Pi Industries Limited Novel picolinamide compounds for combating phytopathogenic fungi

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022058878A1 (en) * 2020-09-15 2022-03-24 Pi Industries Limited Novel picolinamide compounds for combating phytopathogenic fungi

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