CH485653A - Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives - Google Patents

Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives

Info

Publication number
CH485653A
CH485653A CH1909169A CH1909169A CH485653A CH 485653 A CH485653 A CH 485653A CH 1909169 A CH1909169 A CH 1909169A CH 1909169 A CH1909169 A CH 1909169A CH 485653 A CH485653 A CH 485653A
Authority
CH
Switzerland
Prior art keywords
dibenzo
aminoalkylated
acid
preparation
cycloheptene
Prior art date
Application number
CH1909169A
Other languages
German (de)
Inventor
Hamish Dr Russel Jeff
Original Assignee
Wander Ag Dr 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 Wander Ag Dr A filed Critical Wander Ag Dr A
Priority to CH1909169A priority Critical patent/CH485653A/en
Publication of CH485653A publication Critical patent/CH485653A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/33—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings
    • C07C211/34—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton
    • C07C211/38—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton containing condensed ring systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/62—Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/33—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings
    • C07C211/34—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton
    • C07C211/35—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of rings other than six-membered aromatic rings of a saturated carbon skeleton containing only non-condensed rings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Description

  

  



  Verfahren zur Herstellung   10-aminoalkylierter      5H-Dibenzo    [a, d]-cycloheptenderivate
Gegenstand der Erfindung ist ein Verfahren zur Herstellung neuer   1 0-aminoalkyliertcr 5H-Dibenw    [a, d]  cycloheptenderivate der Formel    :
EMI1.1     
 worin R, die Methyl-oder Athylgruppe bedeutet, sowie von   Säure-Additionssalzen    davon.



   Die genannten Verbindungen sind pharmakologisch aktive Stoffe, die günstige Wirkungen auf das Zentralnervensystem ausüben und insbesondere als   Antikon-    vulsiva, Antiepileptika,   Tranquilizer,      Psychosedativa,      Muskelrelaxantien    und   Antiparkinson-Mitte    in Betracht fallen.



   Die gewünschten Verbindungen erhält man durch Hydrolysieren einer Vorstufe der Formel :
EMI1.2     
 in welcher   Ri    die genannte Bedeutung besitzt und R' eine hydrolytisch abspaltbare Schutzgruppe bedeutet.



  Als hydrolytisch abspaltbare Schutzgruppe R'eignet sich z. B. ein insbesondere p-substituierter Benzsulfonylrest, wie   Tosyl,      pNitro-oder p-Brombenzsulfonyl,    oder ein Acylrest.



   Die nach diesem Verfahren erhaltenen   1 0-amino-    alkylierten   5H-Dibenzo    [a, d] cycloheptenderivate können sowohl als freie Basen als auch in Form ihrer   Addi-    tionssalze mit geeigneten Säuren, wie Halogenwasser  stoffsäuren,    Schwefelsäure, Salpetersäure, Phosphorsäure,   Essigäure,    Oxalsäure, Malonsäure,   Bernstein-    säure, Äpfelsäure, Maleinsäure, Weinsäure oder Toluolsulfonsäuren, gewonnen und verwendet werden.



   Beispiel
1,5 g 5-Methylen-10- (N-methyl-N-tosyl-amino  methyl)-SH-dibenzo [a,    d] cyclohepten (Smp.   196195 C)    werden bei   0 C    zu 20g konzentrierter Schwefelsäure gegeben. Das Reaktionsgemisch wird hierauf 15 Stunden bei   0 C    und anschliessend 3 Stunden bei   Zimmer-    temperatur gehalten und dann auf Eis gegossen. Nach dreimaligem Ausschütteln mit Chloroform wird dio saure wässerige Phase mit   30% iger Natronlauge    alkalisch gestellt und viermal mit Äther ausgeschüttelt. Die   Ätheraiuszüge werden mit    Wasser gewaschen, mit Na  triumsulfat    getrocknet und eingedampft.

   Der erhaltene ölige Rückstand wird mit ätherischer   Malcinsäure    in das Maleat übergeführt. Nach Kristallisation aus Aceton erhält man 0,95 g (70% der Theorie)   5-Methylen-10-      methylamunomethyl5H-dibenzo    [a,   d] cyclohepten-Maleat    in Form von farblosen Schuppen vom Schmelzpunkt 180 bis   185 C.  



  



  Process for the preparation of 10-aminoalkylated 5H-dibenzo [a, d] -cycloheptene derivatives
The invention relates to a process for the preparation of new 10-aminoalkylated 5H-Dibenw [a, d] cycloheptene derivatives of the formula:
EMI1.1
 wherein R is the methyl or ethyl group, and acid addition salts thereof.



   The compounds mentioned are pharmacologically active substances which exert beneficial effects on the central nervous system and are particularly suitable as anticonvulsants, antiepileptics, tranquilizers, psychosedativa, muscle relaxants and anti-Parkinson agents.



   The desired compounds are obtained by hydrolyzing a precursor of the formula:
EMI1.2
 in which Ri has the meaning mentioned and R 'denotes a hydrolytically cleavable protective group.



  As a hydrolytically cleavable protective group R 'is suitable, for. B. a particularly p-substituted benzsulfonyl radical, such as tosyl, pnitro- or p-bromobenzsulfonyl, or an acyl radical.



   The 10-aminoalkylated 5H-dibenzo [a, d] cycloheptene derivatives obtained by this process can be used both as free bases and in the form of their addition salts with suitable acids, such as hydrogen halide acids, sulfuric acid, nitric acid, phosphoric acid, acetic acid, oxalic acid Acid, malonic acid, succinic acid, malic acid, maleic acid, tartaric acid or toluenesulfonic acids, can be obtained and used.



   example
1.5 g of 5-methylene-10- (N-methyl-N-tosylamino methyl) -SH-dibenzo [a, d] cycloheptene (melting point 196195 C) are added to 20 g of concentrated sulfuric acid at 0 C. The reaction mixture is then kept at 0 ° C. for 15 hours and then at room temperature for 3 hours and then poured onto ice. After shaking out three times with chloroform, the acidic aqueous phase is made alkaline with 30% sodium hydroxide solution and shaken out four times with ether. The ethereal extracts are washed with water, dried with sodium sulfate and evaporated.

   The oily residue obtained is converted into the maleate with essential malcic acid. After crystallization from acetone, 0.95 g (70% of theory) of 5-methylene-10-methylamunomethyl5H-dibenzo [a, d] cycloheptene maleate are obtained in the form of colorless flakes with a melting point of 180 to 185 C.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung 10-aminoalkylierter 5H- Dibenzo [a, d] cycloheptenderivate der Formel : EMI2.1 wonin R, die Methyl-oder Äthylgruppe bedeutet, sowie von Säure-Additionssalzen davon, dadurch gekennzeichnet, dass man eine Vorstufe der Formel : EMI2.2 worin R, die genannte Bedeutung hat und R'eine bydrojytisch abspaltbare Schutzgruppe bedeutet, hydrolysiert, worauf man das Reaktionsprodukt als freie Base oder in Form eines Addttiionssaizes mit einer anorganischen oder organischen Säure isoliert. PATENT CLAIM Process for the preparation of 10-aminoalkylated 5H-dibenzo [a, d] cycloheptene derivatives of the formula: EMI2.1 wonin R, the methyl or ethyl group, and acid addition salts thereof, characterized in that a precursor of the formula: EMI2.2 where R, has the meaning mentioned and R 'denotes a bydrojytisch cleavable protective group, hydrolyzed, whereupon the reaction product is isolated as a free base or in the form of an addition alkali with an inorganic or organic acid.
CH1909169A 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives CH485653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1909169A CH485653A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1909169A CH485653A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives
CH1050167A CH485650A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives

Publications (1)

Publication Number Publication Date
CH485653A true CH485653A (en) 1970-02-15

Family

ID=4363890

Family Applications (4)

Application Number Title Priority Date Filing Date
CH1909169A CH485653A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives
CH1050167A CH485650A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives
CH1908969A CH485651A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives
CH1909069A CH485652A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives

Family Applications After (3)

Application Number Title Priority Date Filing Date
CH1050167A CH485650A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives
CH1908969A CH485651A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives
CH1909069A CH485652A (en) 1967-07-24 1967-07-24 Process for the preparation of 10-aminoalkylated 5H-dibenzo (a, d) -cycloheptene derivatives

Country Status (7)

Country Link
BE (1) BE718434A (en)
CH (4) CH485653A (en)
DE (1) DE1768706A1 (en)
FR (1) FR7907M (en)
GB (1) GB1185277A (en)
IL (1) IL30368A0 (en)
NL (1) NL6809838A (en)

Also Published As

Publication number Publication date
IL30368A0 (en) 1968-09-26
GB1185277A (en) 1970-03-25
CH485651A (en) 1970-02-15
FR7907M (en) 1970-05-11
NL6809838A (en) 1969-01-28
CH485652A (en) 1970-02-15
BE718434A (en) 1969-01-23
CH485650A (en) 1970-02-15
DE1768706A1 (en) 1971-11-18

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