CH458347A - Process for the preparation of new, basic substituted aryl-alkyl-ketones - Google Patents

Process for the preparation of new, basic substituted aryl-alkyl-ketones

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Publication number
CH458347A
CH458347A CH1044465A CH1044465A CH458347A CH 458347 A CH458347 A CH 458347A CH 1044465 A CH1044465 A CH 1044465A CH 1044465 A CH1044465 A CH 1044465A CH 458347 A CH458347 A CH 458347A
Authority
CH
Switzerland
Prior art keywords
azaspiro
dioxa
hydrochloride
formula
acid
Prior art date
Application number
CH1044465A
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German (de)
Inventor
Rolf Dr Denss
Hugo Dr Ryf
Original Assignee
Geigy Ag J R
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Publication date
Application filed by Geigy Ag J R filed Critical Geigy Ag J R
Priority to CH737668A priority Critical patent/CH457430A/en
Priority to CH1044465A priority patent/CH458347A/en
Priority to CH737568A priority patent/CH457429A/en
Priority to US565753A priority patent/US3424755A/en
Priority to ES0329445A priority patent/ES329445A1/en
Priority to ES0329444A priority patent/ES329444A1/en
Priority to ES0329446A priority patent/ES329446A1/en
Priority to IL2620866A priority patent/IL26208A/en
Priority to AT707866A priority patent/AT263004B/en
Priority to BE684556D priority patent/BE684556A/xx
Priority to NL6610463A priority patent/NL6610463A/xx
Priority to SE1012466A priority patent/SE306742B/xx
Priority to GB3331266A priority patent/GB1112096A/en
Priority to FR70921A priority patent/FR1497552A/en
Publication of CH458347A publication Critical patent/CH458347A/en
Priority to US768178A priority patent/US3567830A/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D491/00Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/02Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
    • C07D491/10Spiro-condensed systems
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D207/00Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/04Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
    • C07D207/10Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members 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
    • C07D207/12Oxygen or sulfur atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D211/00Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/04Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D211/06Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
    • C07D211/36Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members 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
    • C07D211/40Oxygen atoms
    • C07D211/44Oxygen atoms attached in position 4
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D211/00Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/04Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D211/68Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D211/72Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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, directly attached to ring carbon atoms
    • C07D211/74Oxygen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D495/00Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
    • C07D495/02Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D495/10Spiro-condensed systems
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D497/00Heterocyclic compounds containing in the condensed system at least one hetero ring having oxygen and sulfur atoms as the only ring hetero atoms
    • C07D497/02Heterocyclic compounds containing in the condensed system at least one hetero ring having oxygen and sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D497/10Spiro-condensed systems

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

  

  
 



  Verfahren zur Herstellung von neuen, basisch substituierten Aryl-alkyl-ketonen
Die vorliegende Erfindung   betrifft    ein Verfahren zur Herstellung von neuen, basisch substituierten Aryl-alkyl- ketonen mit wertvollen pharmakologischen Eigenschaften.



   Es wurde überraschenderweise gefunden, dass die neuen basisch substituierten Aryl-alkyl-ketone der Formel I,
EMI1.1     
 in weicher R1 einen zweiwertigen Kohlenwasserstoffrest mit 2-11
Kohlenstoffatomen, der die   beiden    Sauerstoffatome  über 24   Kohlenstoffatome    verbindet,   R    Wasserstoff oder den   Methylrest    und R3, R4 und R5 unabhängig voneinander Wasserstoff,    niedere      Alkyl- oder    Alkoxyreste oder Chloratome bedeuten und R3 und   R4      zusammen,    neben Wasser stoff als R5, auch den Methylendioxyrest bedeuten können, und A einen geradkettigen oder verzweigten Alkyliden-   oder   
Alkylenrest mit   höchstens    4 Kohlenstoffatomen be deutet,

   und ihre Additionssalze mit anorganischen und organi- schen Säuren eine sedative, muskelrelaxierende, analgetische und appetithemmende Wirkung ausüben, so dass sie sich als Wirkstoffe von Arzneimitteln zur Verhütung und   Behandlung    von Fettsucht verschiedener Genese sowie auch zur Linderung und Behebung von Schmerzen eignen.



   In den Verbindungen der Formel I und den zuge  hörigen,    weiter unten   genannten      Ausgangsstoffen    ist der zweiwertige Kohlenwasscrstoffrest R1 beispielsweise ein  Äthylen, Propylen-, 1,2-Dimethyl-äthylen-,
Trimethylen-, 1-Methyl-trimethylen-,
2-Methyl-trimethylen-, 1,3-Dimethyl-trimethylen-,
2,2-Dimethyl-trimethylen-, 2,2-Diäthyl-trimethylen-,
Tetramethylen-, 1,4-Dimethyl-tetramethylen-,
2-Butenylen-, cis-1,2-Cyclohexylen-,
2,2-Pentamethylen-trimethylen-,    2-Phenyl-trimethylen-,   
2-Methyl-2-phenyl-trimethylen-,
2-Äthyl-2-phenyl-trimethylen- oder o-Xylyenrest.



     Rs,    R4 und R5 sind als niedere Alkyls oder Alkoxyreste beispielsweise Methyl-, Methoxy- oder Äthoxyreste, jedoch   kann    insbesondere   R3    zusammen mit Wasserstoff, der   Methyl oder      Methoxygruppe    als R4 und Wasserstoff als R5 beispielsweise auch ein Äthyl-,   n-Propyl-,    Isopropyl-,   n-Butyl-,    tert.   Buty1-,    n-Propoxy-, Isoprop  oxy- oder    n-Butoxyrest seiin. Der zweiwertige Rest A ist beispielsweise ein Methylen-,   ithyliden-,    Äthylen-, Propylen-,   1, 1-Dimethyl-äthylen-,    Trimethylen-, 1-Methyl  trimethylen-,    2-Methyl-trimethylen- oder Tetramethylenrest.



   Zur   Herstellung    der neuen Verbindungen der Formel I setzt man eine Verbindung der Formel II,
EMI1.2     
  in welcher R1 und   R2    die unter Formel I angegebene Bedeutung haben, mit einem reaktionsfähigen Ester einer Verbindung der Formel III,
EMI2.1     
 in welcher   R3,    R4, R5 und A   die    unter Formel 1 angegebene   Bedeutung haben,    in Gegenwart eines säurebin denden Mittels um.



   Einzelne Ausgangsstoffe der Formel II, wie   das    1,4-Dioxa-8-azaspiro[4.5]decan und das 1,5-Dioxa-9azaspirol[5.5]undecan, sind   bekannt    und weitere analog zu den bekannten Verbindungen, ausgehend von   4,4-Di-    hydroxy-piperidin-hydrochlorid (4-Piperidon-hydrat-hydrochlorid) und den entsprechenden Dihydroxy-, Hydroxy-mercapto- bzw. Dimercaptoverbindungen. Soweit letztere   Verbindungen    nicht bekannt sind, lassen sie sich analog den bekannten   Verbindungen,    z.

   B.   durch    Reduktion von entsprechenden Dicarbonsäureestern oder Mercaptosäureestern mittels Lithiumaluminimhydrid zu   Dihydroxy- bzw.      HydroxymercaptoverbinFdungen    und gewünsohtenfalls Umwandlung in   entsprechende    Dimercaptoverbindungen über die entsprechenden   Dichiliorver-    bindungen bzw.   Chlor-mercaptoverbindungen    herstellen.



   Als Beispiele von weitern Ausgangsstoffen der Formel II seien
2,3-Dimethyl-1,4-dioxa-8-azaspiro[4.5]decan,
2-Methyl-1,5-dioxa-9-azaspiro[5.5]undecan,
3,3-Diäthyl-1,5-dioxa-9-azaspiro[5.5]undecan,
3-Methyl-3-phenyl-1,5-dioxa-9-azaspiro  [5.5]undecan,
7,12-Dioxa-3-azaspiro[5.6]dodecan,
8,11-Dimethyl-7,12-dioxa-3-azaspiro[5.6]dodecan,
7,12-Dioxa-3-azaspiro[5.6]dodec-9-en,
7,16-Dioxa-3-azadispiro[5.2.5.2]hexadecan,
Hexahydro-spiro[1,3-benzodioxol-2,4'-piperidin] und
1,5-Dihydro-spiro[2,4-benzodioxpein   3,4'-piperidin]    genannt.



   Als reaktionsfähige Ester von Verbindungen der Formel III kommen   insbesondere      Hallogenwasserstoff-    säureester, wie Chloride und   Bromide,    weiter z. B.



  Arylsulfonsäure- und Alkansulfonsäureester, wie p-Toluolsulfonsäureester und Methansulfonsäureester, in Be  tracht.    Als säurebindende Mittel eignen   sicht    insbesondere Alkalicarbonate, ferner auch tertiäre organische Basen, wie Triäthylamin oder   Pyridin.    Als Lösungsmit- tel können organische   Lösungsmittel,    z. B. Dimethyl- formamid, Äthylacetat, Ketone wie   Aceton,      Methyl    äthylketon oder Diäthylketon, oder Kohlenwasserstoffe, wie z. B. Benzol, dienen. Die Reaktion wird bei Raumtemperatur bei mässig hohen   Temperaturen,    z.

   B. der   Siedetemperatur    und der   vorgenannten      Lösungsmittel,    durchgeführt und gewünschtenfalls durch Zusatz geringer Mengen eines Alkaijodids gefördert. Als reaktionsfähige Ester von Verbindungen der Formel III eignen sich z. B.



     2-Chlor- und    2-Brom-acetophenon,    2-Chlor- und 2-Bromtropiophenon,       3-Chlor- und    3-Brom-propiophenon,
2-Brom-butyrophenon, 3-Brom-butyrophenon,    4-Chlor- und    4-Brom-butyrophenon und
5-Chlor-valerophenon sowie   entsprechende    Verbindungen, die im Benzolkern einen oder mehrere Substituenten gemäss der Definition von R8, R4 und R5   enthalten.    An   den    Stelle können z. B. auch entsprechende Verbindungen   verwendet    werden, die anstelle des aliphatisch gebundenen   Chlür- oder      Bromatome    den   p-Toluolsulfonyioxy- oder    Methansulfonyloxyrest tragen.



   Die   nach    den erfindungsgemässen Verfahren erhaltenen Verbindungen der Formel I werden anschliessend   gewünschtenfalls    in üblicher Weise in ihre Additionssalze mit anorganischen und organischen Säuren übergeführt. Beispielsweise versetzt man eine Lösung   einer    Verbindung der Formel I in einem   organischen    Lösungsmittel, wie Methanol, Äthanol oder Diäthyläther, mit der als Salzkomponente gewünschten Säure od'er einer Lösung derselben und trennt das   unmittelbar    oder nach Zufügen einer zweiten   organischen    Flüssigkeit, wie z. B.



  Diäthyläther zu Methanol,   ausgefallene    Salz ab.



   Zur Verwendung als Arzneistoffe können anstelle freier Basen nichttoxische Säureadditionssalze eingesetzt werden, das   heisst    Salze mit solchen Säuren, deren Anionen bei den in Frage kommenden   Dosierungen    pharmazeutisch annehmbar sind.   Ferner    ist es von Vorteil, wenn die als Arzneistoffe zu verwendenden Salze gut   kristallisierbar    und nicht   oder    wenig hygroskopisch sind. Zur Salzbildung mit Verbindungen der Formel I kann z. B.



   Salzsäure, Bromwasserstoffsäure, SChwefelsäure,
Phosphorsäure, Methansulfonsäure,  Äthansulfonsäure, ss-Hydroxyäthansulfonsäure,
Essigsäure, Äpfelsäure,   Weinsäure,    Citronensäure,
Milchsäure, Oxalsäure,   Bernsteinsäure,      Fumarsäure,   
Maleinsäure,   Benzoesäure,    Salicylsäure,
Phenylessigsäure, Mandelsäure oder Embonsäure verwendet werden.



   Die neuen Verbindungen der Formel I und ihre Salze werden vorzugsweise   per oral    verabreicht. Die täglichen Dosen der freien Basen oder von nichttoxischen Salzen derselben bewegen sich zwischen 5 und 200 mg für erwachsene Patienten. Geeignete Doseneinheitsformen, wie Dragees oder   Tabletten,    enthalten vorzugsweise 2-100 mg einer Verbindung der Formel I oder eines   nichttoxischen    Salzes derselben, welche vorzugsweise zwischen 0,1 und 90%   des    Gewichts der betreffenden Doseneinheit ausmachen. Zu ihrer Herstellung kombi  niert    man den Wirkstoff z.

   B. mit festen,   pulverförmigen    Trägerstoffen, wie Lactose, Saccharose, Sorbit, Mannit; Stärken, wie Kartoffelstärke, Maisstärke oder   Amylo-    pektin, ferner Laminariapulver oder   Cituspulpenplul-    ver;   Cellulosederivaten    oder Gelatine, gegebenenfalls unter Zusatz von   Gleitmitteln,    wie   Magnesium- oder    Calciumstearat oder Polyäthylenglykolen   (Carbowaxen)    von geeigneten   Molekulargewichten    zu Tabletten oder zu   Drage'e-Kernen.    Letztere überzieht man   beispielsweise    mit konzentrierten Zuckerlösungen, welche z.

   B. noch arabischen Gummi, Talk   und/oder    Titandioxyd enthalten können, oder mit einem in leichtflüchtigen organischein Lösungsmitteln oder Lösungsmittelgemischen gelösten Lack. Diesen Überzügen   können    Farbstoffe zugefügt werden, z. B. zur Kennzeichnung verschiedener Wirkstoffdosen.



   Die nachfolgenden Beispiele crläutern die Herstel  lung    der neuen Verbindungen der Formel I. Die Temperaturen sind in Celsiusgraden angegeben.  



   Beispiel 1 in einer Lösung von 14,3 g (0,1 Mol) 1,4-Dioxa-8- azaspiro[4.5]decan in 100   mi    Aceton werden 21,3 g (0,1 Mol) 2-Bromprophenon, 14 g   Kaliuncarbonat    und 0,5 g Kaliumjodid gegeben. Das Gemisch wird 15 Minuten unter Rückfluss gekocht, dann abfiltriert und mit weiteren 100   mi    Aceton nachgewaschen. Das Lösungsmittel wird unter Vakuum abgedampft und das zurückbleibende Ö1 in 300   ml    Äther   aufgenommen.    Die Lösung wird mit ätherischer Salzsäure   neutral    gestellt, wobei das Hydrochlorid des Reaktionsproducktes ausfällt.



   Das erhaltene 2-(1,4-Dioxa-8-azaspiro[4.5]dec-8-yl)  propiop3tlenon-hydrochilorid    wird aus Methanol/Äther umkristallisiert und   schmilzt    bei 145 .



   In analoger Weise erhält man a) unter Verwendung von 25,5 g (0,1 Mol)
2-Brom-4'-tert.-butyl-acetophenon das
2-(1,4-Dioxa-8-azaspiro[4.5]dec-8-yl)
4'-tert.-butylacetophenon-hydrochlorid vom Smp. 207-208 ; b) unter Verwendung von 22,9 g (0,1 Mol)
2-Brom-4'-methoxyacetophenon das
2-(1,4-Dixa-8-azaspiro[4.5]dec-8-yl)-4'-methoxy    acetophenon hydrochlorid    vom Smp. 208-209 ; c) unter Verwendung von 26,9 g (0,1 Mol)    2-Brom-4'-isopropylpropiophenon    das
2-(1,4-Dioxa-8-azaspiro[4.5]dec-8-yl)-4'-isopropyl propiophenon-hydrochlorid vom Smp. 198-200 .



   Ebenfalls analog werden unter   Verwendung    der   wei-    ter unten genannten Spiroverbindungen und   der    entsprechenden, gegebenenfalls   sub stituierten      2-Brom-aceto-    phenone, -propiophenone und -butyrophenone die nachstehenden Verbindungen erhalten: d) 2-(2-Methyl-1,4-dioxa-8-azaspiro[4.5]dec-8-yl)
4'-isopropylbutyrophenon-hydrochlorid vom Smp. 200-203 ; e) 2-(3,3-Diäthyl-1,5-dioxa-9-azaspiro[5.5]undec
9-yl)-butyrophenon-hydrochlorid vom Smp. 190-193 ; f) 2-(7,12-Dioxa-3-azaspiro[5.6]dodec-3-yl)-aceto    phenon-hydrochlorid    vom Smp. 185-190 ; g) 2-(7,12-Dioxa-3-azaspiro[5   .6]dodec-3      -yl)-   
4'-tert-butyl-acetophenon-hydrochlorid vom Smp. 201-203 ;

   h) 2-(7,12-Dioxa-3-azaspiro[5.6]dodec-3-yl)-propio phenon-hydrochlorid vom Smp. 204-205 ;
Das als Ausgangsstoff für die Verbindung d) benötigte 2-Methyl-1,4-dioxa-8-azaspiro[4.5]decan kann wie folgt hergestellt werden:
30 g 4,4-Dihydro-piperidin-hydrochlorid, 17 g 1,2  Propandiol    und 1 g p-Toluosulfonsäure werden in 500   mi    Benzol unter starkem Rühren am   Wasserabschei-    der gekocht. Wenn kein Wasser mehr   übergeht,    wird das   Benzol abdekantiert    und zum Rückstand 100   ml    50% ige Kaliumcarbonatlösung und 200   ml    Chloroform unter Rühren gegeben. Nach Abtrennen der   Ohlleoroform-    schicht wird die wässrige Phase noch   dreimal    mit Chloro- form extrahiert.

   Die vereinigten Chloroformphasen werden mit Wasser gewaschen, mit   Natriumsülfat    getrocknet und   eingedampft.    Das zurückbleibende   2-Methtyl-    1 ,4-dioxa-9-azaspiro[4.5]decan wird unter Vakuum de  stilliert,    Kp. 950/12 Torr.



   In analoger Weise werden erhalten:
3,3-Diäthyl-1,5-dioxa-9-azaspiro[5.5]undecan,
Kp. 145-149 /12 Torr (Ausgangsstoff zu
7,12-Dioxa-3-azaspiro[5.6]dodecan,
Kp. 113-115 /11 Torr, (zu f, g und h).



   Beispiel 2
23,3 g (0,1 Mol) 3-Phenyl-1,5-dioxa-9-azaspiro[5.5]- undecan,   (vgl. Beispiel    1), 18,3 g (0,1 Mol) 4-Chlorbutyrophenon, 14 g   Kaliumcarbonat    und 0,5 g Kalium  jodid    werden in 100   ml    Benzol 24 Stunden unter Rückfluss gekocht. Die Reaktionslösung wird von den anorganischen Salzen   abfütriert      und    das Filtergut mit weiteren 100   mi Benzol    nachgewaschen. Das Filtrat wird unter   Vakuum    eingedampft und   das    zurückbleibende   Öl    in 100   mi    absolutem   Äther    gelöst.

   Beim   Neutralisie-    ren dieser Lösung mit ätherischer Chlorwasserstofflösung fällt das Reaktionsprodukt als   Hydrochlorid    aus. Das erhaltene 4-(3-Phenyl-1,5-dioxa-9-azaspiro[5.5]undec-9yl)-butyrophenon-hydrochlorid schmilzt bie 221-222 .   



  
 



  Process for the preparation of new, basic substituted aryl-alkyl-ketones
The present invention relates to a process for the preparation of new, basic substituted aryl-alkyl ketones with valuable pharmacological properties.



   It has surprisingly been found that the new basic substituted aryl-alkyl-ketones of the formula I,
EMI1.1
 in soft R1 a divalent hydrocarbon radical with 2-11
Carbon atoms that connect the two oxygen atoms via 24 carbon atoms, R is hydrogen or the methyl radical and R3, R4 and R5 independently of one another are hydrogen, lower alkyl or alkoxy radicals or chlorine atoms and R3 and R4 together, in addition to hydrogen as R5, also mean the methylenedioxy radical can, and A is a straight-chain or branched alkylidene or
Alkylene radical with a maximum of 4 carbon atoms means,

   and their addition salts with inorganic and organic acids exert a sedative, muscle-relaxing, analgesic and appetite-suppressing effect, so that they are suitable as active ingredients in medicaments for the prevention and treatment of obesity of various origins and also for the alleviation and elimination of pain.



   In the compounds of the formula I and the associated starting materials mentioned below, the divalent hydrocarbon radical R1 is, for example, an ethylene, propylene, 1,2-dimethylethylene,
Trimethylene, 1-methyl-trimethylene,
2-methyl-trimethylene, 1,3-dimethyl-trimethylene,
2,2-dimethyl-trimethylene, 2,2-diethyl-trimethylene,
Tetramethylene, 1,4-dimethyl-tetramethylene,
2-butenylene, cis-1,2-cyclohexylene,
2,2-pentamethylene trimethylene, 2-phenyl trimethylene,
2-methyl-2-phenyl-trimethylene,
2-ethyl-2-phenyl-trimethylene or o-xylyene radical.



     Rs, R4 and R5 as lower alkyls or alkoxy radicals are, for example, methyl, methoxy or ethoxy radicals, but in particular R3 together with hydrogen, the methyl or methoxy group as R4 and hydrogen as R5 can also be, for example, ethyl, n-propyl, isopropyl -, n-butyl, tert. Buty1, n-propoxy, isopropoxy or n-butoxy radical. The divalent radical A is, for example, a methylene, ithylidene, ethylene, propylene, 1,1-dimethyl-ethylene, trimethylene, 1-methyl-trimethylene, 2-methyl-trimethylene or tetramethylene radical.



   To prepare the new compounds of the formula I, a compound of the formula II is used
EMI1.2
  in which R1 and R2 have the meaning given under formula I, with a reactive ester of a compound of formula III,
EMI2.1
 in which R3, R4, R5 and A have the meaning given under formula 1, in the presence of an acid-binding agent.



   Individual starting materials of the formula II, such as 1,4-dioxa-8-azaspiro [4.5] decane and 1,5-dioxa-9azaspirol [5.5] undecane, are known and others analogous to the known compounds, starting from 4.4 Dihydroxy piperidine hydrochloride (4-piperidone hydrate hydrochloride) and the corresponding dihydroxy, hydroxy mercapto and dimercapto compounds. If the latter compounds are not known, they can be analogous to the known compounds, eg.

   B. by reducing corresponding dicarboxylic acid esters or mercapto acid esters by means of lithium aluminum imhydride to dihydroxy or hydroxy mercapto compounds and, if desired, conversion into corresponding dimercapto compounds via the corresponding dichloro compounds or chloro-mercapto compounds.



   Examples of further starting materials of the formula II are
2,3-dimethyl-1,4-dioxa-8-azaspiro [4.5] decane,
2-methyl-1,5-dioxa-9-azaspiro [5.5] undecane,
3,3-diethyl-1,5-dioxa-9-azaspiro [5.5] undecane,
3-methyl-3-phenyl-1,5-dioxa-9-azaspiro [5.5] undecane,
7,12-Dioxa-3-azaspiro [5.6] dodecane,
8,11-dimethyl-7,12-dioxa-3-azaspiro [5.6] dodecane,
7,12-Dioxa-3-azaspiro [5.6] dodec-9-en,
7,16-dioxa-3-azadispiro [5.2.5.2] hexadecane,
Hexahydro-spiro [1,3-benzodioxole-2,4'-piperidine] and
1,5-Dihydro-spiro [2,4-benzodioxpein 3,4'-piperidine] called.



   Reactive esters of compounds of the formula III are, in particular, hydrogen halide esters, such as chlorides and bromides, and also e.g. B.



  Arylsulfonic acid and alkanesulfonic acid esters, such as p-toluenesulfonic acid esters and methanesulfonic acid esters, are considered. Particularly suitable acid-binding agents are alkali metal carbonates, and also tertiary organic bases such as triethylamine or pyridine. Organic solvents, e.g. B. Dimethyl formamide, ethyl acetate, ketones such as acetone, methyl ethyl ketone or diethyl ketone, or hydrocarbons, such as. B. benzene, serve. The reaction is carried out at room temperature at moderately high temperatures, e.g.

   B. the boiling point and the aforementioned solvent carried out and, if desired, promoted by adding small amounts of an alkali iodide. Suitable reactive esters of compounds of the formula III are, for. B.



     2-chloro- and 2-bromo-acetophenone, 2-chloro- and 2-bromotropiophenone, 3-chloro- and 3-bromo-propiophenone,
2-bromo-butyrophenone, 3-bromo-butyrophenone, 4-chloro- and 4-bromo-butyrophenone and
5-chloro-valerophenone and corresponding compounds which contain one or more substituents in the benzene nucleus according to the definition of R8, R4 and R5. In place of z. B. appropriate compounds can be used, which carry the p-toluenesulfonyioxy or methanesulfonyloxy instead of the aliphatically bound chlorine or bromine atoms.



   The compounds of the formula I obtained by the process according to the invention are then, if desired, converted into their addition salts with inorganic and organic acids in the customary manner. For example, a solution of a compound of the formula I in an organic solvent, such as methanol, ethanol or diethyl ether, is mixed with the acid or a solution of the same desired as the salt component, and this is separated immediately or after adding a second organic liquid, such as B.



  Diethyl ether to methanol, precipitated salt.



   For use as medicinal substances, non-toxic acid addition salts can be used instead of free bases, that is to say salts with acids whose anions are pharmaceutically acceptable at the dosages in question. It is also advantageous if the salts to be used as medicinal substances are readily crystallizable and have little or no hygroscopic properties. For salt formation with compounds of formula I, for. B.



   Hydrochloric acid, hydrobromic acid, sulfuric acid,
Phosphoric acid, methanesulfonic acid, ethanesulfonic acid, ss-hydroxyethanesulfonic acid,
Acetic acid, malic acid, tartaric acid, citric acid,
Lactic acid, oxalic acid, succinic acid, fumaric acid,
Maleic acid, benzoic acid, salicylic acid,
Phenylacetic acid, mandelic acid or emboxylic acid can be used.



   The new compounds of the formula I and their salts are preferably administered orally. The daily doses of the free bases or of the non-toxic salts thereof range between 5 and 200 mg for adult patients. Suitable dosage unit forms, such as coated tablets or tablets, preferably contain 2-100 mg of a compound of the formula I or a non-toxic salt thereof, which preferably make up between 0.1 and 90% of the weight of the dosage unit in question. For their production you can combine the active ingredient z.

   B. with solid, powdery carriers such as lactose, sucrose, sorbitol, mannitol; Starches, such as potato starch, corn starch or amylopectin, also laminaria powder or citus pulp powder; Cellulose derivatives or gelatin, optionally with the addition of lubricants, such as magnesium or calcium stearate or polyethylene glycols (carbowaxene) of suitable molecular weights, for tablets or for tablet cores. The latter is coated, for example, with concentrated sugar solutions, which z.

   B. can also contain gum arabic, talc and / or titanium dioxide, or with a paint dissolved in volatile organic solvents or solvent mixtures. Dyes can be added to these coatings, e.g. B. to identify different drug doses.



   The following examples explain the preparation of the new compounds of the formula I. The temperatures are given in degrees Celsius.



   Example 1 In a solution of 14.3 g (0.1 mol) 1,4-dioxa-8-azaspiro [4.5] decane in 100 ml acetone, 21.3 g (0.1 mol) 2-bromoprophenone, 14 g Potassium carbonate and 0.5 g potassium iodide were added. The mixture is refluxed for 15 minutes, then filtered off and washed with a further 100 ml of acetone. The solvent is evaporated off under vacuum and the remaining oil is taken up in 300 ml of ether. The solution is made neutral with ethereal hydrochloric acid, whereby the hydrochloride of the reaction product precipitates.



   The 2- (1,4-dioxa-8-azaspiro [4.5] dec-8-yl) propiop3tlenon-hydrochloride obtained is recrystallized from methanol / ether and melts at 145.



   In an analogous manner, a) is obtained using 25.5 g (0.1 mol)
2-Bromo-4'-tert-butyl-acetophenone das
2- (1,4-Dioxa-8-azaspiro [4.5] dec-8-yl)
4'-tert-butylacetophenone hydrochloride of m.p. 207-208; b) using 22.9 g (0.1 mol)
2-bromo-4'-methoxyacetophenone das
2- (1,4-Dixa-8-azaspiro [4.5] dec-8-yl) -4'-methoxy acetophenone hydrochloride of m.p. 208-209; c) using 26.9 g (0.1 mol) of 2-bromo-4'-isopropylpropiophenone das
2- (1,4-Dioxa-8-azaspiro [4.5] dec-8-yl) -4'-isopropyl propiophenone hydrochloride, m.p. 198-200.



   Likewise, using the spiro compounds mentioned below and the corresponding, optionally substituted 2-bromo-acetophenones, -propiophenones and -butyrophenones, the following compounds are obtained: d) 2- (2-methyl-1,4- dioxa-8-azaspiro [4.5] dec-8-yl)
4'-isopropylbutyrophenone hydrochloride of m.p. 200-203; e) 2- (3,3-diethyl-1,5-dioxa-9-azaspiro [5.5] undec
9-yl) -butyrophenone hydrochloride of m.p. 190-193; f) 2- (7,12-Dioxa-3-azaspiro [5.6] dodec-3-yl) aceto phenone hydrochloride with a melting point of 185-190; g) 2- (7,12-Dioxa-3-azaspiro [5 .6] dodec-3-yl) -
4'-tert-butyl-acetophenone hydrochloride of m.p. 201-203;

   h) 2- (7,12-dioxa-3-azaspiro [5.6] dodec-3-yl) propiophenone hydrochloride of m.p. 204-205;
The 2-methyl-1,4-dioxa-8-azaspiro [4.5] decane required as starting material for compound d) can be prepared as follows:
30 g of 4,4-dihydro-piperidine hydrochloride, 17 g of 1,2 propanediol and 1 g of p-toluenesulfonic acid are boiled in 500 ml of benzene with vigorous stirring on a water separator. When no more water passes over, the benzene is decanted off and 100 ml of 50% strength potassium carbonate solution and 200 ml of chloroform are added to the residue with stirring. After separating the chloroform layer, the aqueous phase is extracted three more times with chloroform.

   The combined chloroform phases are washed with water, dried with sodium sulphate and evaporated. The remaining 2-methyl-1, 4-dioxa-9-azaspiro [4.5] decane is distilled under vacuum, boiling point 950/12 Torr.



   In an analogous way the following are obtained:
3,3-diethyl-1,5-dioxa-9-azaspiro [5.5] undecane,
Bp. 145-149 / 12 Torr (starting material to
7,12-Dioxa-3-azaspiro [5.6] dodecane,
Kp. 113-115 / 11 Torr, (on f, g and h).



   Example 2
23.3 g (0.1 mol) 3-phenyl-1,5-dioxa-9-azaspiro [5.5] - undecane, (see Example 1), 18.3 g (0.1 mol) 4-chlorobutyrophenone, 14 g of potassium carbonate and 0.5 g of potassium iodide are refluxed in 100 ml of benzene for 24 hours. The reaction solution is filtered off from the inorganic salts and the filter material is washed with a further 100 ml of benzene. The filtrate is evaporated in vacuo and the remaining oil is dissolved in 100 ml of absolute ether.

   When this solution is neutralized with an ethereal hydrogen chloride solution, the reaction product precipitates as the hydrochloride. The 4- (3-phenyl-1,5-dioxa-9-azaspiro [5.5] undec-9yl) -butyrophenone hydrochloride obtained melts at 221-222.

 

Claims (1)

In analoger Weise werden erhalten: a) 4-(1,4-Dioxa-8-azaspiro[4.5]dec-8-yl)-butyro phenon-hydrochlorid, Smp, 187-189 ; b) 4-(2-Methyl-1,5-dioxa-9-azaspiro[5.5]undec 9-yl)-4'-isopropylbutyrophenon-hydrochlorid, Smp. 2030; c) 4-(7,12-Dixa-3-azaspiro[5.6]dodec-3-yl)-4'-iso propylbutyrophenon-hydrochlorid, Smp. 188-189 ; d) 4-(3-Phenyl?-1,5-dioxa-9-azaspiro[5.5]undec-9-yl) 2',4',6'-trimethylbutyrophenon-hydrochlorid; Smp. 220-225 ; e) 4-(3-Phenyl-1,5-dioxa-9-azaspiro[5.5]undec-9-yl) 4'-tent.-buthylbutyrophenon-hydrochlorid; f) 4-(3-Pehenyl-1,5-dioxa-9-azaspiro[5.5]undec-9-yl) 4'-chlorbutyrophenon-hydrochlorid; In an analogous manner the following are obtained: a) 4- (1,4-Dioxa-8-azaspiro [4.5] dec-8-yl) -butyro phenone hydrochloride, mp, 187-189; b) 4- (2-methyl-1,5-dioxa-9-azaspiro [5.5] undec 9-yl) -4'-isopropylbutyrophenone hydrochloride, M.p. 2030; c) 4- (7,12-Dixa-3-azaspiro [5.6] dodec-3-yl) -4'-isopropylbutyrophenone hydrochloride, m.p. 188-189; d) 4- (3-Phenyl? -1,5-dioxa-9-azaspiro [5.5] undec-9-yl) 2 ', 4', 6'-trimethylbutyrophenone hydrochloride; M.p. 220-225; e) 4- (3-phenyl-1,5-dioxa-9-azaspiro [5.5] undec-9-yl) 4'-tent.-buthylbutyrophenone hydrochloride; f) 4- (3-pehenyl-1,5-dioxa-9-azaspiro [5.5] undec-9-yl) 4'-chlorobutyrophenone hydrochloride; Smp. 235-237 ; PATENTANSPRUCH Verfahren zur Herstellung von neuen, basisch substituierten Aryl-alkyl-ketonen der Formel I, EMI3.1 in welcher R1 einen zweiwertigen Kohlenwasserstoffrest mit 2-11 Kohlenstoffatomen, der die beiden Sauerstoffatome über 2-4 Kohlenstoffatome verbindet, R2 Wasserstoff oder den Methylrest und Rs, R4 und R5 unabhängig voneinander Wasserstoff, nie dere Alkyl- doer Alkoxyreste oder Chlloratome be deuten und R3 und R4 zusammen, neben Wasser stoff als R5, auch den Methylendioxyrest bedeuten können und A einen geradkettigen oder verzweigten Alkyliden- oder Alkylenrest mit höchstens 4 Kohlenstoffatomen bedeutet, M.p. 235-237; PATENT CLAIM Process for the preparation of new, basic substituted aryl-alkyl-ketones of the formula I, EMI3.1 in which R1 is a divalent hydrocarbon radical with 2-11 Carbon atoms connecting the two oxygen atoms via 2-4 carbon atoms, R2 hydrogen or the methyl radical and Rs, R4 and R5 independently of one another hydrogen, no alkyl or alkoxy radicals or chlorine atoms and R3 and R4 together, in addition to hydrogen as R5 can also mean the methylenedioxy radical and A means a straight-chain or branched alkylidene or alkylene radical with a maximum of 4 carbon atoms, und ihre Additionssalzen mit anorganischen und organischen Säuren, dadurch gekennzeichnet, dass man eine Verbindung der Formel II, EMI4.1 in welcher R1 und R2 die unter Formel I angegebene Bedeutung haben, mit einem reaktionsfähigen Ester einer Verbindung der Formel III, EMI4.2 in welcher R3, Rq, R5 und A die unter Formel I angegebene Bedeutung haben, in Gegenwart eines säurebindenden Mittels umsetzt und die erhaltene Verbindung der Formel' 1 gewünschtenfalls in ein Salz mit einer anorganischen oder organischen Säure überführt. and their addition salts with inorganic and organic acids, characterized in that a compound of the formula II, EMI4.1 in which R1 and R2 have the meaning given under formula I, with a reactive ester of a compound of formula III, EMI4.2 in which R3, Rq, R5 and A have the meaning given under formula I, are reacted in the presence of an acid-binding agent and the compound of formula 1 obtained is, if desired, converted into a salt with an inorganic or organic acid.
CH1044465A 1964-03-09 1965-07-26 Process for the preparation of new, basic substituted aryl-alkyl-ketones CH458347A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
CH737668A CH457430A (en) 1965-07-26 1965-07-26 Process for the preparation of new, basic substituted aryl-alkyl-ketones
CH1044465A CH458347A (en) 1965-07-26 1965-07-26 Process for the preparation of new, basic substituted aryl-alkyl-ketones
CH737568A CH457429A (en) 1965-07-26 1965-07-26 Process for the preparation of new, basic substituted aryl-alkyl-ketones
US565753A US3424755A (en) 1964-03-09 1966-07-18 4-piperidine-p-fluorobutyrophenones and related compounds
ES0329445A ES329445A1 (en) 1965-07-26 1966-07-23 Procedure for the preparation of new substituted basic replacement aril-alkil. (Machine-translation by Google Translate, not legally binding)
ES0329444A ES329444A1 (en) 1965-07-26 1966-07-23 Procedure for the preparation of new substituted basic replacement aril-alkil. (Machine-translation by Google Translate, not legally binding)
ES0329446A ES329446A1 (en) 1965-07-26 1966-07-23 Procedure for the preparation of new substituted basic replacement aril-alkil. (Machine-translation by Google Translate, not legally binding)
IL2620866A IL26208A (en) 1965-07-26 1966-07-25 Basically substituted aryl alkyl ketones and their production
AT707866A AT263004B (en) 1965-07-26 1966-07-25 Process for the preparation of new, basic substituted aryl-alkyl-ketones and their salts
BE684556D BE684556A (en) 1965-07-26 1966-07-25
NL6610463A NL6610463A (en) 1965-07-26 1966-07-25
SE1012466A SE306742B (en) 1965-07-26 1966-07-25
GB3331266A GB1112096A (en) 1965-07-26 1966-07-25 Process for the production of basically substituted arylalkyl ketones
FR70921A FR1497552A (en) 1965-07-26 1966-07-26 New aryl-alkyl-ketones and their preparation
US768178A US3567830A (en) 1964-03-09 1968-10-16 Compositions and methods for producing a sedative and depressant effect in a mammal with an azaspiroalkyl-butyrophenone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1044465A CH458347A (en) 1965-07-26 1965-07-26 Process for the preparation of new, basic substituted aryl-alkyl-ketones

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CH458347A true CH458347A (en) 1968-06-30

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