CH258192A - 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
CH258192A
CH258192A CH258192DA CH258192A CH 258192 A CH258192 A CH 258192A CH 258192D A CH258192D A CH 258192DA CH 258192 A CH258192 A CH 258192A
Authority
CH
Switzerland
Prior art keywords
phenanthrene
hexahydro
methyl
carboxylic acid
ethyl
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 CH258192A publication Critical patent/CH258192A/en

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  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Description

  

  Verfahren zur Herstellung eines neuen     Oxyhydrophenanthren-Derivates.       Es wurde gefunden,     daB    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     Benzoyloxy-          gruppe    überführt.  



  Das noch nicht     bekannte    Endprodukt des  Verfahrens, der     1-Äthyl-2-methyl-7-benzoyl-          oxy-1,2,3,4,9,10        -hexahydro-phenanthren-    2     -          carbonsäuremethylester,    zeigt sowohl bei     par-          enteraler    als auch     bei    oraler Applikation eine  ausserordentlich hohe     oestrogene    Wirkung. Es  soll     therapeutische        Verwendung    finden oder.  als Zwischenprodukt zur Herstellung thera  peutisch     verwendbarer    Verbindungen dienen.  



  Für die     Überführung    der     Hydrogylgruppe     in     7-Stell'ung    in die     Benzoyloxygruppe    ver  wendet man     Benzoesäure    bzw. ihre Derivate,  wie z. B.     Benzoylchlorid.    Vorteilhaft arbeitet  man in Gegenwart von     Kondensationsmitteln          und/oder    Katalysatoren.  



  Der Ausgangsstoff wird z. B. erhalten  aus dem 1-     Keto    - 2 -     methyl    - 7 -     methoxy-          1,    2 , 3 , 4 , 9 ,10 -     hexahydro    -     phenanthren    - 2     -          carbonsäuremethylester    durch     Grignardierung     mit     einem        Äthylmagnesiumhalogend,    Isolie  rung     des    so erhaltenen 1-Äthyliden-2-methyl-7       methoxy-1,2,3,4,9,10-hexahydro-phenanthren-          2-carbonsäuremethylesters,

      Hydrierung der       Athyliden-Doppelbindung        und    anschliessende  Spaltung der     7-Methoxygruppe    unter Bil  dung des     1-Äthyl-2-methyl-7-oxy-1,2,    3,4,9,10-         hexahydro-phenanth        ren-2-carbonsäuremethyl-          esters.     



  <I>Beispiel:</I>  1 Gewichtsteil     1-Äthyl-2-methyl-7-oxy-          1,    2, 3,4,     9,10-hexahydro-phenauthren-2-carbon-          säuremethylester    der Formel  
EMI0001.0059     
         wird    in     einer    Mischung von 10     Volumteilen          Pyridin    und 5     Volumteilen        Benzoyl'chlorid     24 Stunden bei Raumtemperatur stehen ge  lassen. Hierauf wird Wasser zugegeben, mit  Äther     ausgeschüttelt    und der Äther mit Salz  säure,     BikarbonaIlösung    und Wasser ge  waschen.

   Der Rückstand der verdampften       Ätherlösung    liefert, nach     Umkristallisieren     aus Alkohol, den     oestrogen    wirksamen       1-Äthyl    - 2 -     methyl-7-benzoyloxy    -1, 2, 3,4, 9,10       hexahydro-phenanthren-2-carbonsäuremethyl-          ester    der Formel  
EMI0001.0075     
    Den Ausgangsstoff erhält man z.

   B. wie       folgt:    12     Gewichtsteile    1-Keto-2-methyl-7  methoxy-1,2,3,4,9,10-hexahydro-phenanthren-           2-carbonsäumemethylester    lässt man mit einer       Grignardlösung,        hergestellt    aus. 1,25 Ge  wichtsteilen Magnesium und 5     Vol'umteilen          Äthyljodid,        reagieren,        isoliert    den so ent  standenen 1-Äthyliden-2-methyl-1,2,3,4,9,10       hexahydro=phenanthren-2-carbonsäuremethyl-          ester    vom F.

   146-147 ,     hydriert    1     Gewichts-          teil    der     Athyliden-Verbinflung    in 30     Volum-          teilen    Alkohol in     Gegenwart    von 1     Gewichts-          teil        eines     zum     1-Athyl-2-          methyl    --7 -     methoxy    -1,2,3,4,9,10 -     hexahydra-          phenanthren    - 2 -     carbons-äureme#thylester    vom  F.

   77-79  und spaltet     anschliessend    die       7-Methoxygruppedurch        kurzes        Erhitzen    von  1     Gewichtsteil    der letzteren     Verbindung        mit     10     Gewichtsteilen        Pyridinhydrochlorid.  



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



  The not yet known end product of the process, the 1-ethyl-2-methyl-7-benzoyl-oxy-1,2,3,4,9,10-hexahydro-phenanthrene-2-carboxylic acid methyl ester, shows both parenteral and an extraordinarily high estrogenic effect even with oral administration. It should find therapeutic use or. serve as an intermediate for the preparation of therapeutically usable compounds.



  For the conversion of the hydrogyl group in the 7-Stell'position into the benzoyloxy group ver use benzoic acid or its derivatives, such as. B. benzoyl 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 - keto - 2 - methyl - 7 - methoxy - 1, 2, 3, 4, 9, 10 - hexahydro - phenanthrene - 2 - carboxylic acid methyl ester by Grignardation with an ethylmagnesium halogen, isolation of the 1-ethylidene thus obtained -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-phenanthrene-2-carboxylic acid methyl ester .



  <I> Example: </I> 1 part by weight of 1-ethyl-2-methyl-7-oxy-1, 2, 3,4, 9,10-hexahydro-phenauthrene-2-carboxylic acid methyl ester of the formula
EMI0001.0059
         is left to stand ge in a mixture of 10 parts by volume of pyridine and 5 parts by volume of benzoyl chloride for 24 hours at room temperature. Then water is added, extracted with ether and the ether is washed with hydrochloric acid, bicarbonate solution and water.

   The residue of the evaporated ether solution gives, after recrystallization from alcohol, the estrogenically active 1-ethyl-2-methyl-7-benzoyloxy-1, 2, 3,4, 9,10 hexahydro-phenanthrene-2-carboxylic acid methyl ester of the formula
EMI0001.0075
    The starting material is obtained z.

   B. as follows: 12 parts by weight of 1-keto-2-methyl-7-methoxy-1,2,3,4,9,10-hexahydro-phenanthrene-2-carboxylic acid methyl ester are left with a Grignard solution. 1.25 parts by weight of magnesium and 5 parts by volume of ethyl iodide react, isolating the 1-ethylidene-2-methyl-1,2,3,4,9,10 hexahydro = phenanthrene-2-carboxylic acid methyl ester from 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 one to 1-ethyl-2-methyl -7-methoxy -1,2,3,4,9 , 10 - hexahydra- phenanthrene - 2 - carboxylic acids # thyl esters from F.

   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 Herstellung eines neuen Oxyhydrophenamthren-Derivates, dadurch g0- kennzeichnet, dass man den 1-Äthyl-2-methyl 7-ogy-1,2,3,4,9,10-hexahydro,-phenanthren-2- carbonsäuremethyl'ester mit einem verestern- den Mittel behandelt, PATENT CLAIM: Process for the production of a new Oxyhydrophenamthren derivative, characterized in that g0- indicates that 1-ethyl-2-methyl 7-ogy-1,2,3,4,9,10-hexahydro, -phenanthrene-2-carboxylic acid methyl 'ester treated with an esterifying agent, das die Hydroxyl- gruppe in 7-Stellung in die Benzoyloxy- gruppe überführt. Das noch nicht bekannte Endprodukt des Verfahrens, der 1-Äthyl-2-methyl-7-benzoyl- oxy -1,2,3,4,9,10 -hexahydro-phenanthren- 2 - carbonsäuremethylester, which converts the hydroxyl group in the 7-position into the benzoyloxy group. The as yet unknown end product of the process, the 1-ethyl-2-methyl-7-benzoyl-oxy -1,2,3,4,9,10-hexahydro-phenanthrene-2-carboxylic acid methyl ester, zeigt sowohl bei par- enteraler als auch bei oraler Applikation eine ausserordentlich hohe oestrogene Wirkung. Es soll therapeutische Verwendung finden oder als Zwischenprodukt zur Herstellung thera peutisch verwendbarer Verbindungen dienen. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man als veresterndes Mittel $enzoylchlorid verwendet. shows an extraordinarily high estrogenic effect on both parenteral and oral administration. It should find therapeutic use or serve as an intermediate for the preparation of therapeutically useful compounds. SUBClaim: Process according to patent claim, characterized in that enzoyl chloride is used as the esterifying agent.
CH258192D 1944-01-10 1944-01-10 Process for the preparation of a new oxyhydrophenanthrene derivative. CH258192A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH258192T 1944-01-10
CH250373T 1944-01-10

Publications (1)

Publication Number Publication Date
CH258192A true CH258192A (en) 1948-11-15

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ID=25729448

Family Applications (1)

Application Number Title Priority Date Filing Date
CH258192D CH258192A (en) 1944-01-10 1944-01-10 Process for the preparation of a new oxyhydrophenanthrene derivative.

Country Status (1)

Country Link
CH (1) CH258192A (en)

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