CH258190A - 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
CH258190A
CH258190A CH258190DA CH258190A CH 258190 A CH258190 A CH 258190A CH 258190D A CH258190D A CH 258190DA CH 258190 A CH258190 A CH 258190A
Authority
CH
Switzerland
Prior art keywords
phenanthrene
ethyl
hexahydro
carboxylic acid
derivative
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 CH258190A publication Critical patent/CH258190A/en

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Description

  

  Verfahren zur Herstellung eines neuen     Oxyhydrophenanthren-Derivates;       Es, wurde     gefunden,    dass man zu einem  neuen     Oxyhydrophenanthren-Derivat        gelan-          ben    kann, wenn man den     1-Äthyl-2-methyl-          7        -oxy-1,2,3,4,9,10    -     hexahydro-phenanthren-2-          carbons:äuremethylester    mit einem verestern  den Mittel behandelt, das die     Hydroxylgruppe     in     7-Stellung    in die     Acetoxygruppe    über  führt.  



  Das noch nicht bekannte Endprodukt des  Verfahrens, der 1-Äthyl'-2-methyl-7-acetoxy       1,2,3,4,9,10-hexahydro-phenanthren-2-ea.rbon-          säuremethy        lester,    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-          peutisüh        verwendbarer        Verbindungen    dienen.  



  Für die Überführung der     Hydroxylgruppe     in     7-Stellung    in die     Acetoxygruppe    verwen  det man Essigsäure bzw. ihre Derivate, wie  z. B.     Acetanhydrid    oder     Acetylchlorid.    Vor  teilhaft arbeitet man in     Gegenwart    von     Kon-          densationsmitteln        und/oder        Katalysatoren.     



  Dem     Ausgangsstoff    wird z. B. erhalten aus  dem 1-geto-2-methyl-7-methoxy-1,2,3,4,9,10       hexahydro-phenanthren-2=carbons@ä@uremethyl-          estem    durch     Grignardierung    mit einem     Athyl-          ma:

  gnesiumhalogenid,    Isolierung des so erhal  tenen 1-     Äthyliden    - 2 -     methyl    - 7 -     methoxy-          1.2,3,4    -     tetrahydr    o -     phenanthren    - 2 -     carbon-          säuremethylesters,    Hydrierung der     Ät.hyli.den-          Doppelbindung    und     anschliessende        Spaltung     der     7-Methoxygruppe    unter Bildung des  1-     Äthyl    --2 -     methyl    - 7 -     oxy-1,    2, 3,4,

   9     ,10-hexa:            hydro    -     phenanthren    - 2 -     carbonsäuremethyl-          estere..     



  <I>Beispiel:</I>  1     Gewichtsteil    1-Äthyl-2-methyl-7-oxy       1,2,3,4,9,10-hexahydro-phena.nthren-2-carbon-          säuremethylester    der     Formel     
EMI0001.0065     
    erwärmt man in     einer    Mischung von 10     Vo-          lumteilen        Pyridin    und 5     Volumteilen        Acet-          a.nhydrid    während 4-5 Stunden auf dem       Wasserbad.    Nach dem     Erkalten    wird Wasser  zugegeben, mit.

   Äther ausgeschüttelt und der  Äther mit Salzsäure,     Bicarbonatlösung    und  Wasser gewaschen. Der Rückstand der  verdampften Ätherlösung liefert, nach De  stillation im Hochvakuum, den     oestrogen     wirksamen 1 - Äthyl - 2 -     methyl    - 7 - acetoxy       1,2,3,4,9,10-hexahydro-phenanthren-2-carbon-          säuremethylester    dem Formel  
EMI0001.0080     
    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-carbonsäuremethylester    lässt man mit     einer          Grignardlösung,        hergestellt        aus    1,25     Ge-          wichtsteilen    Magnesium     und    5     Volumteilen          Athyljodid,    reagieren,     isoliert    den so entstan  denen 1-     Athyliden    - 2 -     methyl    -1,2,3,4,9,

  10       hexahydro-phenanthren-2-carbonsäurem-ethyl-          ester    vom F. l46-147 ,     hydriert    1 Gewichts  teil' der     Ithyliden-Verbindung    in 30     Volum-          teilen    Alkohol     in        Gegenwart    von 1     Gewichts-          teil        eines    Nickelkatalysators zum     1-Athyl-2-          methyl    - 7 -     methoxy        -1,2,3,4,9,

  10        -hexahydro-          phenanthren    - 2     -.carbonsäuremethylester    vom  F. 77-79  und spaltet     anschliessend    die  7     Methoxygruppe    durch     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 1-ethyl-2-methyl-7-oxy-1,2,3,4,9,10-hexahydro-phenanthrene-2 - carbons: acid methyl ester treated with an esterifying agent that converts the hydroxyl group in the 7-position into the acetoxy group.



  The not yet known end product of the process, the 1-ethyl'-2-methyl-7-acetoxy 1,2,3,4,9,10-hexahydro-phenanthrene-2-ea.rbon- säuremethy lester, shows both at par - Enteral as well as oral administration an extraordinarily high estrogenic effect. It should find therapeutic use or serve as an intermediate product for the preparation of therapeutically usable compounds.



  For the conversion of the hydroxyl group in the 7-position into the acetoxy group, acetic acid or its derivatives, such as. B. acetic anhydride or acetyl chloride. Before working in the presence of condensing agents and / or catalysts is advantageous.



  The starting material is z. B. obtained from 1-geto-2-methyl-7-methoxy-1,2,3,4,9,10 hexahydro-phenanthrene-2 = carbons @ ä @ uremethyl- estem by Grignardation with an ethyl ma:

  magnesium halide, isolation of the 1-ethylidene-2-methyl-7-methoxy-1,2,3,4-tetrahydro-phenanthrene-2-carboxylic acid methyl ester, hydrogenation of the ethylidene double bond and subsequent cleavage of the 7th -Methoxy group with formation of 1-ethyl - 2 - methyl - 7 - oxy-1, 2, 3,4,

   9, 10-hexa: hydro - phenanthrene - 2 - carboxylic acid methyl esters.



  <I> Example: </I> 1 part by weight of 1-ethyl-2-methyl-7-oxy 1,2,3,4,9,10-hexahydro-phena.nthrene-2-carboxylic acid methyl ester of the formula
EMI0001.0065
    it is heated in a mixture of 10 parts by volume of pyridine and 5 parts by volume of acetal anhydride for 4-5 hours on a water bath. After cooling, water is added, with.

   Shaken out ether and wash the ether with hydrochloric acid, bicarbonate solution and water. The residue of the evaporated ether solution gives, after distillation in a high vacuum, the estrogenically active 1-ethyl-2-methyl-7-acetoxy 1,2,3,4,9,10-hexahydro-phenanthrene-2-carboxylic acid methyl ester of the formula
EMI0001.0080
    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 made 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 hexahydro-phenanthrene-2-carboxylic acid ethyl 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 methyl ester of F. 77-79 and then cleaves the 7th 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 Oxyhydro@phen.anthren-Derivates, dadurch ge kennzeichnet, dass man den 1-Athyl-2-methyl- 7-oxy-1,2,3,4,9,10 -hexahydro-phenanthren-2- carbonsäuremethylester mit einem verestern- den Mittel behandelt, PATENT CLAIM: Process for the production of a new Oxyhydro@phen.anthren- derivative, characterized in that the 1-ethyl-2-methyl- 7-oxy-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 Acetoxygruppe überführt. Das noch nicht bekannte Endprodukt des Verfahrens, der 1-Athyl-2-methyl-7-acetoxy 1,2,3,4,9,10-hexahydro-phenanthren-2-carbon- säuremethylester, which converts the hydroxyl group in the 7-position into the acetoxy group. The as yet unknown end product of the process, the 1-ethyl-2-methyl-7-acetoxy 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 oestrogeneWirkung. Es soll therapeutische Verwendung finden oder als Zwischenprodukt zur Herstellung thera peutisch verwendbarer Verbindungen dienen. U\TTERANSPRüCHE: shows an extraordinarily high estrogenic effect with both parenteral and oral administration. It should find therapeutic use or serve as an intermediate for the preparation of therapeutically useful compounds. U \ TTER CLAIMS: 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man als verestern des Mittel Acetanhydrid verwendet. 2. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man als verestern- des Mittel Acetylchlorid verwendet. 1. The method according to claim, characterized in that acetic anhydride is used as the esterifying agent. 2. The method according to claim, characterized in that acetyl chloride is used as the esterifying agent.
CH258190D 1944-01-10 1944-01-10 Process for the preparation of a new oxyhydrophenanthrene derivative. CH258190A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH258190T 1944-01-10
CH250373T 1944-01-10

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CH258190A true CH258190A (en) 1948-11-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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