CH258191A - Process for the preparation of a new oxyhydrophenanthrene derivative. - Google Patents

Process for the preparation of a new oxyhydrophenanthrene derivative.

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Publication number
CH258191A
CH258191A CH258191DA CH258191A CH 258191 A CH258191 A CH 258191A CH 258191D A CH258191D A CH 258191DA CH 258191 A CH258191 A CH 258191A
Authority
CH
Switzerland
Prior art keywords
preparation
hexahydro
methyl
ethyl
oxyhydrophenanthrene
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Ciba
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
Publication of CH258191A publication Critical patent/CH258191A/en

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Description

  

  Verfahren zur Herstellung     eines    neuen     Oxyhydrophenanthren-Derivates.       Es wurde gefunden, dass man zu einem       neuen        Oxyhydrophenanthren-Derivat    gelan  gen kann, wenn man den 1-Äthyl-2-methyl       7-oxy-1,2,3,4,9,10-hexahydro-phenanthren-2-          carbonsäuremethylester    mit einem verestern  den     Mittel    behandelt, das die     Hydroxyl-          gruppe    in     7-Stellung    in die     Propionyloxy-          gruppe    überführt.  



  Das noch nicht bekannte Endprodukt des  Verfahrens, der 1- Äthyl - 2 -     methyl    - 7 -     pro-          pionyloxy    -1, 2, 3, 4,<B>9,</B> 10 -     hexahydro    -     phen-          a.nthren-2-carbonsäuremethylester,

      zeigt so  wohl bei     parenteraler    als auch bei oraler  Applikation eine     .ausserordentlich    hohe     oestro-          gene        Wirkung.    Es soll'     therapeutische    Ver  wendung finden oder als Zwischenprodukt       zur        Herstellung        therapeutisch    verwendbarer  Verbindungen dienen.  



  Für die Überführung der     Hydroxylgruppe     in     7-Stellung    in die     Propionyloxygruppe    ver  wendet man     Propionsäure    bzw. ihre     Derivate.     wie z. B.     Propionsäureanhydrid    oder     Pro-          pionylchlorid.    Vorteilhaft arbeitet man in     Ge          genwart    von Kondensationsmitteln     und/oder     Katalysatoren.  



  Der     Ausgangsstoff    wird z. B. erhalten  aus dem 1     -1%eto    - 2     -methyl    - 7 - methoxy       1,2,3,4,9,10-hexahydro-phenanthren-2-carbon-          säuremethylester    durch     Grignardierung    mit  einem     Ätbylmagnesiumhalogenid,    Isolierung       des    so erhaltenen 1-Athyliden-2-methyl-7       methoxy-1,2,3,4,9,10-hexahydro-phenanthren-          2-carbons!äuremethylesters,

      Hydrierung der         Athyliden-Doppeilbindung    und anschliessende  Spaltung der     7-Methoxygruppe        unter    Bildung  des     1-Äthyl    - 2 -     methyl    - 7 -     oxy    -1,2,3,4,9,10       hexahydro-p:henanthren-2-carbonsäuremethyl-          esters.     



       Beispiel:     1 Gewichtsteil 1-Äthyl-2-methyl-7-oxy       1,2,3,4,9,10-hexahydro-phenanthren-2-carbon-          säuremethylester    der Formal  
EMI0001.0060     
    erwärmt man in     einer    Mischung von 10     Vo-          lumteilen        Pyridin    und 5     Volumteilen        Pro-          ponsäureanhydrid    während 4-5 Stunden  auf     dem    Wasserbad.

   Nach dem     Erkalten     wird Wasser zugegeben, mit Äther ausge  schüttelt und der Äther mit Salzsäure,     Bi-          carbonatlösung    und     Wasser    gewaschen. Der  Rückstand der verdampften     Ätherlösung        lie-          fert,    nach Destillation im Hochvakuum, den       oestrogen    wirksamen     1-Äthyl-2-methyl-7-pro-          pionyloxy    -1, 2 , 3 , 4 , 9 ,

  10 -     hexahydro    -     phen-          anthren-2-.carbonsäuremethylester    der Formel  
EMI0001.0082     
      Den     Aus.gangssto.ff    erhält man z. P. wie       folgt:

      12     Gewichtsteile        1-geto-2-methyl-7-          methoxy-1,2,3,4,        9,10-hexahydro-phenanthren-          2-carb.o#nsäuremethylester        dässt    man mit einer       Grignardlösung,        hergestellt        aus    1,25     Ge-          wichtsteilen    Magnesium und 5     Volumteilen          Äthyljodid,    reagieren,     ioliert    den so entstan  denen     1-Äthyliden-2-methyl-1,2,3,4,9,

  10-hexa-          hydro-phenanthren-    2     -carbonsäuremethylester     vom F. 146-147 , hydriert 1 Gewichtsteil der       Äthyliden-Verbindung    in 30     Volumteilen     Alkohol in     Gegenwart    von 1 Gewichtsteil  eines     Nickelkatalysators    zum     1-Äthyl-2-          methyl'    - 7 -     methoxy        -1,2,3,4,9,10-hexahydro-          phenanthren-2-carbonsäu:

  remethylester    vom  F. 77-79  und spaltet anschliessend die       7-Methoxygruppe    durch kurzes Erhitzen von  1 Gewichtsteil der letzteren Verbindung mit  10     Gewichtsmeilen        Pyridinhydrochlorid.  



  Process for the preparation of a new oxyhydrophenanthrene derivative. It has been found that a new oxyhydrophenanthrene derivative can be obtained by using methyl 1-ethyl-2-methyl 7-oxy-1,2,3,4,9,10-hexahydro-phenanthrene-2-carboxylate an esterifying agent which converts the hydroxyl group in the 7-position into the propionyloxy group.



  The as yet unknown end product of the process, the 1 - ethyl - 2 - methyl - 7 - propionyloxy -1, 2, 3, 4, <B> 9, </B> 10 - hexahydro - phen- a.nthren- 2-carboxylic acid methyl ester,

      shows an extraordinarily high estrogenic effect in both parenteral and oral administration. It should 'find therapeutic use or serve as an intermediate for the preparation of therapeutically useful compounds.



  To convert the hydroxyl group in the 7-position into the propionyloxy group, propionic acid or its derivatives are used. such as B. propionic anhydride or propionyl chloride. It is advantageous to work in the presence of condensing agents and / or catalysts.



  The starting material is z. B. obtained from the 1-1% eto-2-methyl-7-methoxy 1,2,3,4,9,10-hexahydro-phenanthrene-2-carboxylic acid methyl ester by Grignardation with an ethylmagnesium halide, isolation of the 1 obtained in this way -Athyliden-2-methyl-7-methoxy-1,2,3,4,9,10-hexahydro-phenanthrene-2-carboxylic acid methyl ester,

      Hydrogenation of the ethylidene double bond and subsequent cleavage of the 7-methoxy group with formation of the 1-ethyl-2-methyl-7-oxy -1,2,3,4,9,10 hexahydro-p: henanthrene-2-carboxylic acid methyl ester.



       Example: 1 part by weight of 1-ethyl-2-methyl-7-oxy 1,2,3,4,9,10-hexahydro-phenanthrene-2-carboxylic acid methyl ester of the formal
EMI0001.0060
    it is heated in a mixture of 10 parts by volume of pyridine and 5 parts by volume of proponic anhydride for 4-5 hours on a water bath.

   After cooling, water is added, shaken out with ether and the ether is washed with hydrochloric acid, bicarbonate solution and water. The residue of the evaporated ether solution provides, after distillation in a high vacuum, the estrogenically active 1-ethyl-2-methyl-7-propionyloxy-1, 2, 3, 4, 9,

  10-hexahydro-phen-anthrene-2-carboxylic acid methyl ester of the formula
EMI0001.0082
      The output material is obtained e.g. P. as follows:

      12 parts by weight of 1-geto-2-methyl-7-methoxy-1,2,3,4, 9,10-hexahydro-phenanthrene-2-carb.o # nsäuremethylester are allowed to with a Grignard solution, prepared from 1.25 Ge parts by weight of magnesium and 5 parts by volume of ethyl iodide, react, isolate the 1-ethylidene-2-methyl-1,2,3,4,9,

  10-hexa- hydro-phenanthren- 2-carboxylic acid methyl ester of F. 146-147, hydrogenated 1 part by weight of the ethylidene compound in 30 parts by volume of alcohol in the presence of 1 part by weight of a nickel catalyst to give 1-ethyl-2-methyl '- 7 - methoxy - 1,2,3,4,9,10-hexahydro- phenanthrene-2-carboxylic acid:

  remethyl ester of mp 77-79 and then cleaves the 7-methoxy group by briefly heating 1 part by weight of the latter compound with 10 parts by weight of pyridine hydrochloride.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstelilung eines neuen Oxyhydrophenanthren-Derivates, dadurch ge kennzeichnet, dass man den 1-Äthyl-2-methyl- 7-oxy -1, 2,i;,4, 9,10 - hexahydro-phenanthr. en-2- carbonsäuremethylester mit einem verestern- den Mittel- behandelt, . das die Hydroxyl- grupp.e in 7-Stellung in die Propionyloxy- gruppe überführt. PATENT CLAIM: Process for the preparation of a new oxyhydrophenanthrene derivative, characterized in that 1-ethyl-2-methyl-7-oxy -1, 2, i;, 4, 9,10-hexahydro-phenanthr. en-2-carboxylic acid methyl ester treated with an esterifying agent,. which converts the hydroxyl grupp.e in the 7-position into the propionyloxy group. Das noch nicht bekannte Endprodukt des Verfahrens, der 1- Äthyl - 2 - methyl - 7 - pro- pionyloxy -1, 2, 3 , 4 ,<B>9,</B> 10 - hexahydro - phen- anthren-2-carbons,äuremethylester, zeigt so wohl bei parenteraler als auch bei oraler Applikation eine ausserordentlich hohe oestro- gene Wirkung. Es soll therapeutische Ver wendung finden oder als Zwischenprodukt zur Herstellung therapeutisch verwendbarer Verbindungen dienen. <B>UNTERANSPRÜCHE:</B> 1. The as yet unknown end product of the process, the 1- ethyl - 2 - methyl - 7 - propionyloxy -1, 2, 3, 4, <B> 9, </B> 10 - hexahydro - phen- anthrene-2- Carbons, acid methyl esters, show an extraordinarily high estrogenic effect when administered parenterally as well as when administered orally. It should find therapeutic use or serve as an intermediate for the preparation of therapeutically useful compounds. <B> SUBClaims: </B> 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man als verestern- des Mittel Propionsäurean.hydrid verwendet. 2. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man als verestern- des Mittel Propionylchlorid verwendet. Process according to patent claim, characterized in that propionic anhydride is used as the esterifying agent. 2. The method according to claim, characterized in that propionyl chloride is used as the esterifying agent.
CH258191D 1944-01-10 1944-01-10 Process for the preparation of a new oxyhydrophenanthrene derivative. CH258191A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH258191T 1944-01-10
CH250373T 1944-01-10

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CH258191A true CH258191A (en) 1948-11-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732389A (en) * 1956-01-24 I-methyl-z-carboxy-y-oxy derivatives of
US3681427A (en) * 1969-12-09 1972-08-01 Syntex Corp 7-alkoxy-2{60 -carboxy-1{60 ,2{62 di-alkyl-1,2,3,4,9,12{60 hexahydrophen anthrenes and esters and salts thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732389A (en) * 1956-01-24 I-methyl-z-carboxy-y-oxy derivatives of
US3681427A (en) * 1969-12-09 1972-08-01 Syntex Corp 7-alkoxy-2{60 -carboxy-1{60 ,2{62 di-alkyl-1,2,3,4,9,12{60 hexahydrophen anthrenes and esters and salts thereof

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