CH368181A - Process for the preparation of N-aminoalkyl derivatives of azepines - Google Patents

Process for the preparation of N-aminoalkyl derivatives of azepines

Info

Publication number
CH368181A
CH368181A CH569562A CH569562A CH368181A CH 368181 A CH368181 A CH 368181A CH 569562 A CH569562 A CH 569562A CH 569562 A CH569562 A CH 569562A CH 368181 A CH368181 A CH 368181A
Authority
CH
Switzerland
Prior art keywords
acid
formula
iminostilbene
azepines
preparation
Prior art date
Application number
CH569562A
Other languages
German (de)
Inventor
Walter Dr Schindler
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 CH569562A priority Critical patent/CH368181A/en
Publication of CH368181A publication Critical patent/CH368181A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D223/00Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
    • C07D223/14Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
    • C07D223/18Dibenzazepines; Hydrogenated dibenzazepines
    • C07D223/22Dibenz [b, f] azepines; Hydrogenated dibenz [b, f] azepines
    • C07D223/24Dibenz [b, f] azepines; Hydrogenated dibenz [b, f] azepines with hydrocarbon radicals, substituted by nitrogen atoms, attached to the ring nitrogen atom
    • C07D223/26Dibenz [b, f] azepines; Hydrogenated dibenz [b, f] azepines with hydrocarbon radicals, substituted by nitrogen atoms, attached to the ring nitrogen atom having a double bond between positions 10 and 11

Description

  

  
 



  Verfahren zur Herstellung von   N-Aminoalkylderivaten    von Azepinen
Im Hauptpatent wird ein Verfahren zur Herstellung von   N-Aminoalkylderivaten    von Azepinen der Formel I
EMI1.1     

 X <SEP> X
<tb>  <SEP> Alkylen-Am
<tb>  worin X Wasserstoff, Halogenatome oder Methyl gruppen, Alkylen einen Alkylenrest mit 2-6 Kohlenstoffato men und 2-4 Brückengliedern zwischen N und Am, und Am einen niedrigmolekularen Dialkylaminorest bedeutet, beschrieben. Dieses Verfahren besteht darin, dass man ein Iminostilben in Gegenwart eines säurebindenden Mittels mit einem reaktionsfähigen Ester eines Aminoalkohols der Formel
HO - Alkylen - Am umsetzt.



   Es wurde nun gefunden, dass man Verbindungen der Formel I, worin Am eine Pyrrolidino- oder Piperidinogruppe ist, herstellen kann, wenn man ein Iminostilben der Formel II
EMI1.2     
 in Gegenwart eines säurebindenden Mittels mit einem reaktionsfähigen Ester eines Aminoalkohols der Formel III
HO-Alkylen-Am III worin Am eine Pyrrolidino- oder Piperidinogruppe bedeutet, umsetzt.



   Diese Verbindungen besitzen wertvolle pharmakologischeEigenschaften, insbesondere antiallergische und sedative Wirksamkeit, und kommen unter anderem zur Behandlung von gewissen Formen von Geisteskrankheiten, insbesondere Gemütsdepressionen, in Betracht.



   Als säurebindende Mittel eignen sich dabei insbesondere Natriumamid, Lithiumamid, Kaliumamid, Natrium, Lithium oder Kalium. Als reaktionsfähige Ester von Aminoalkoholen der Formel III kommen insbesondere die Halogenide in Frage, wie das Pyrrolidinoäthylchlorid und das Piperidinoäthylchlorid oder die entsprechenden Bromide und Jodide.



   Zur Umsetzung geeignete Iminostilbene sind neben dem Iminostilben beispielsweise das 3,7-Dichloriminostilben,   2, 8-Dichlor-iminostilben,      1,9-Dichlor-    iminostilben,   3, 7-Dibrom-iminostilben,      3,7-Dimethyl-    iminostilben und 2,8 -Dimethyl-iminostilben. Die Ausgangsstoffe erhält man z. B. aus den entsprechenden   lminodibenzylverbindungen    durch Überführen in leicht spaltbare N-Acylderivate, Halogenierung, z. B. mit Bromsuccinimid, Halogenwasserstoffabspaltung und Hydrolyse, z. B. mittels   Ätzalkalien    in der Kälte.



   Durch Anlagerung von Halogeniden oder Sulfaten aliphatischer oder araliphatischer Alkohole, z. B. von Methyljodid, Dimethylsulfat,   Äthylbromid,      Äthyl    jodid oder Benzylchlorid, kann man aus den tertiären Aminen der Formel I in üblicher Weise monoquaternäre Ammoniumverbindungen erhalten, wobei die Gruppe Am reagiert.



   Mit anorganischen oder organischen Säuren, wie Salzsäure, Bromwasserstoffsäure, Schwefelsäure, Phosphorsäure, Methansulfonsäure,   Athandisulfon-    säure, Essigsäure, Citronensäure, Apfelsäure, Bern  steinsäure, Weinsäure, Benzoesäure und Phthalsäure können aus den tertiären Basen Salze gebildet werden, welche zum Teil wasserlöslich sind. Ferner seien Fumar- und Maleinsäure genannt.



   Im nachfolgenden Beispiel bedeuten die Teile Gewichtsteile, diese verhalten sich zu Volumteilen wie g zu   cm3.    Die Temperaturen sind in Celsiusgraden angegeben.



   Beispiel
3,86 Teile Iminostilben werden in 50 Volumteilen abs. Benzol gelöst, eine benzolische Lösung der aus 5,4 Teilen   ss-Pyrrolidino-äthylchlorid-Hydro-    chlorid freigesetzten Base zugefügt und das Ganze auf   60-700    erwärmt. Innerhalb einer halben Stunde lässt man nun eine Suspension von 11 Teilen Natriumamid in Toluol zutropfen und kocht anschlie ssend 18 Stunden unter Rückfluss. Dann kühlt man das Reaktionsgemisch ab und versetzt es mit Wasser.



  Die benzolische Schicht wird abgetrennt, zweimal mit Wasser gewaschen und hierauf dreimal mit je 50 Teilen 2-n Essigsäure ausgezogen. Die essigsauren Auszüge werden vereinigt, mit Alkalilauge alkalisch gestellt und ausgeäthert. Der   Ätherextrakt    wird über Natriumsulfat getrocknet, das Lösungsmittel abdestilliert und der Rückstand im Hochvakuum destilliert.



   Das   5-(ss-Pyrrolidino-äthyl)-iminostilben    geht unter 0,001 mm Druck bei   172-175     über. Nach Umkristallisation aus Pentan schmilzt es bei   74-74,5".   



  Das mittels alkoholischer Salzsäure hergestellte Hydrochlorid schmilzt bei   195-196".   



   In analoger Weise erhält man unter Verwendung der aus 7 Teilen   ss, ss-Dimethyl-y-pyrrolidino-propyl-    chlorid-Hydrochlorid freigesetzten Base das   5-(fl, ss-       Dimethyl- - pyrrolidino - propyl) - iminostilben vom Apo02 169".      



  
 



  Process for the preparation of N-aminoalkyl derivatives of azepines
The main patent describes a process for the preparation of N-aminoalkyl derivatives of azepines of the formula I
EMI1.1

 X <SEP> X
<tb> <SEP> Alkylen-Am
<tb> where X is hydrogen, halogen atoms or methyl groups, alkylene is an alkylene radical with 2-6 carbon atoms and 2-4 bridge members between N and Am, and Am is a low molecular weight dialkylamino radical. This method consists in mixing an iminostilbene in the presence of an acid binding agent with a reactive ester of an amino alcohol of the formula
HO - alkylene - Am converts.



   It has now been found that compounds of the formula I in which Am is a pyrrolidino or piperidino group can be prepared if an iminostilbene of the formula II
EMI1.2
 in the presence of an acid-binding agent with a reactive ester of an amino alcohol of the formula III
HO-Alkylen-Am III in which Am is a pyrrolidino or piperidino group.



   These compounds have valuable pharmacological properties, in particular antiallergic and sedative activity, and can be used, inter alia, for the treatment of certain forms of mental illness, in particular mood depression.



   Sodium amide, lithium amide, potassium amide, sodium, lithium or potassium are particularly suitable as acid-binding agents. Particularly suitable reactive esters of amino alcohols of the formula III are the halides, such as pyrrolidinoethyl chloride and piperidinoethyl chloride or the corresponding bromides and iodides.



   In addition to the iminostilbene, suitable iminostilbenes are, for example, 3,7-dichloriminostilbene, 2,8-dichloro-iminostilbene, 1,9-dichloro-iminostilbene, 3, 7-dibromo-iminostilbene, 3,7-dimethyl-iminostilbene and 8-Dimethyl-iminostilbene. The starting materials are obtained z. B. from the corresponding lminodibenzyl compounds by conversion into easily cleavable N-acyl derivatives, halogenation, e.g. B. with bromosuccinimide, elimination of hydrogen halide and hydrolysis, e.g. B. by means of caustic alkalis in the cold.



   By addition of halides or sulfates of aliphatic or araliphatic alcohols, e.g. B. of methyl iodide, dimethyl sulfate, ethyl bromide, ethyl iodide or benzyl chloride, monoquaternary ammonium compounds can be obtained from the tertiary amines of the formula I in the usual manner, the group Am reacting.



   With inorganic or organic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, phosphoric acid, methanesulfonic acid, ethanedisulfonic acid, acetic acid, citric acid, malic acid, succinic acid, tartaric acid, benzoic acid and phthalic acid, salts can be formed from the tertiary bases, some of which are water-soluble. Fumaric and maleic acids may also be mentioned.



   In the following example, the parts mean parts by weight; these relate to parts by volume as g to cm3. The temperatures are given in degrees Celsius.



   example
3.86 parts of iminostilbene are abs in 50 parts by volume. Dissolved benzene, added a benzene solution of the base released from 5.4 parts of β-pyrrolidino-ethyl chloride hydrochloride, and the whole was heated to 60-700. A suspension of 11 parts of sodium amide in toluene is then added dropwise over the course of half an hour and the mixture is then refluxed for 18 hours. The reaction mixture is then cooled and water is added.



  The benzene layer is separated off, washed twice with water and then extracted three times with 50 parts of 2N acetic acid each time. The acetic acid extracts are combined, made alkaline with alkali and extracted with ether. The ether extract is dried over sodium sulfate, the solvent is distilled off and the residue is distilled in a high vacuum.



   The 5- (ss-pyrrolidino-ethyl) -iminostilbene passes under 0.001 mm pressure at 172-175. After recrystallization from pentane, it melts at 74-74.5 ".



  The hydrochloride produced by means of alcoholic hydrochloric acid melts at 195-196 ".



   In an analogous manner, using the base released from 7 parts of ss, ss-dimethyl-y-pyrrolidino-propyl chloride hydrochloride, 5- (fl, ss-dimethyl- pyrrolidino-propyl) - iminostilbene from Apo02 169 "is obtained.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von N-Aminoalkylderivaten von Azepinen der Formel I EMI2.1 <tb> X¸¸N1¸X <tb> <SEP> Alkylen-Am <tb> worin X Wasserstoff, Halogenatome oder Methyl gruppen, Alkylen einen Alkylenrest mit 2-6 Kohlenstoffato men und 2-4 Brückengliedern zwischen N und Am, und Am eine Pyrrolidino- oder Piperidinogruppe bedeuten, dadurch gekennzeichnet, dass man ein Iminostilben der Formel II EMI2.2 in Gegenwart eines säurebindenden Mittels mit einem reaktionsfähigen Ester eines Aminoalkohols der Formel III HO - Alkylen - Am III umsetzt. PATENT CLAIM Process for the preparation of N-aminoalkyl derivatives of azepines of the formula I. EMI2.1 <tb> X¸¸N1¸X <tb> <SEP> Alkylen-Am <tb> where X is hydrogen, halogen atoms or methyl groups, alkylene is an alkylene radical with 2-6 carbon atoms and 2-4 bridge members between N and Am, and Am is a pyrrolidino or piperidino group, characterized in that an iminostilbene of the formula II EMI2.2 in the presence of an acid-binding agent with a reactive ester of an amino alcohol of the formula III HO - alkylene - Am III. UNTERANSPRÜCHE 1. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass man als reaktionsfähigen Ester eines Aminoalkohols ein Halogenid eines solchen verwendet. SUBCLAIMS 1. The method according to claim, characterized in that a halide of such is used as the reactive ester of an amino alcohol. 2. Verfahren gemäss Patentanspruch, dadurch gekennzeichnet, dass man die erhaltenen tertiären Basen in ihre Salze mit anorganischen oder organischen Säuren überführt. 2. Process according to claim, characterized in that the tertiary bases obtained are converted into their salts with inorganic or organic acids.
CH569562A 1956-11-13 1957-10-29 Process for the preparation of N-aminoalkyl derivatives of azepines CH368181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH569562A CH368181A (en) 1956-11-13 1957-10-29 Process for the preparation of N-aminoalkyl derivatives of azepines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH349988T 1956-11-13
CH569562A CH368181A (en) 1956-11-13 1957-10-29 Process for the preparation of N-aminoalkyl derivatives of azepines

Publications (1)

Publication Number Publication Date
CH368181A true CH368181A (en) 1963-03-31

Family

ID=25698218

Family Applications (1)

Application Number Title Priority Date Filing Date
CH569562A CH368181A (en) 1956-11-13 1957-10-29 Process for the preparation of N-aminoalkyl derivatives of azepines

Country Status (1)

Country Link
CH (1) CH368181A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010524975A (en) * 2007-04-20 2010-07-22 アキュセラ インコーポレイテッド Styrenyl derivative compounds for treating eye diseases and disorders

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010524975A (en) * 2007-04-20 2010-07-22 アキュセラ インコーポレイテッド Styrenyl derivative compounds for treating eye diseases and disorders
US8420863B2 (en) 2007-04-20 2013-04-16 Acucela, Inc. Styrenyl derivative compounds for treating ophthalmic diseases and disorders
US8653142B2 (en) 2007-04-20 2014-02-18 Acucela Inc. Styrenyl derivative compounds for treating ophthalmic diseases and disorders
US9314467B2 (en) 2007-04-20 2016-04-19 Acucela Inc. Styrenyl derivative compounds for treating ophthalmic diseases and disorders
US9421210B2 (en) 2007-04-20 2016-08-23 Acucela Inc. Styrenyl derivative compounds for treating ophthalmic diseases and disorders
US10201545B2 (en) 2007-04-20 2019-02-12 Acucela Inc. Styrenyl derivative compounds for treating ophthalmic diseases and disorders

Similar Documents

Publication Publication Date Title
DE1670849B2 (en) PROCESS FOR THE PREPARATION OF 8-ACYLAMINO-1,2,3,4-TETRAHYDROISOCHINOLINES
AT200578B (en) Process for the preparation of new N-aminoalkyl derivatives of azepines
CH368181A (en) Process for the preparation of N-aminoalkyl derivatives of azepines
AT202152B (en) Process for the preparation of new dimethylaminopropylidene thiaxanthenes.
CH311615A (en) Process for the production of a new basic substituted fatty acid (2-halogen-6-methyl-anilide).
DE2820718A1 (en) NEW 5-PHENYL-1H-3-BENZAZEPINE, THEIR PRODUCTION AND USE
CH349988A (en) Process for the preparation of N-aminoalkyl derivatives of azepines
AT212326B (en) Process for the production of new, basic substituted azepine derivatives
AT203013B (en) Process for the preparation of new N-aminoalkyl derivatives of azepines
AT208870B (en) Process for the production of new N-substituted azepines or dihydroazepines
DE1620406A1 (en) Basically substituted adamantyl-2,3-di-hydro-1,5-benzthiazepinones and process for their preparation
CH366542A (en) Process for the preparation of basic derivatives of azepines
CH370082A (en) Process for the preparation of new N-heterocyclic compounds
AT217045B (en) Process for the preparation of new monoalkylated or monohalogenated N-derivatives of 10,11-dihydro-5H-dibenzo [b, f] azepines and 5H-dibenzo [b, f] azepines
AT220625B (en) Process for the preparation of new N-heterocyclic compounds
CH368182A (en) Process for the preparation of N-aminoalkyl derivatives of azepines
AT212327B (en) Process for the preparation of new derivatives of iminodibenzyl
AT205039B (en) Process for the preparation of new, basic substituted derivatives of azepines
DE1038047B (en) Process for the preparation of N-aminoalkylated iminodibenzyls and their salts
AT219612B (en) Process for the preparation of new N-heterocyclic compounds and their salts
CH363029A (en) Process for the preparation of N-aminoalkyl derivatives of azepines
AT258899B (en) Process for the preparation of new aminoalkyl-substituted 1,3,4-oxadiazoles and their salts
DE1113694B (en) Process for the preparation of N-aminoalkylated iminostilbenes and their salts
AT222657B (en) Process for the preparation of a new iminodibenzyl derivative
AT268323B (en) Process for the preparation of new 3,1-benzothiazine derivatives and their salts