CH250373A - 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
CH250373A
CH250373A CH250373DA CH250373A CH 250373 A CH250373 A CH 250373A CH 250373D A CH250373D A CH 250373DA CH 250373 A CH250373 A CH 250373A
Authority
CH
Switzerland
Prior art keywords
methyl
carboxylic acid
phenanthrene
tetrahydro
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 CH250373A publication Critical patent/CH250373A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C62/00Compounds having carboxyl groups bound to carbon atoms of rings other than six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C62/30Unsaturated compounds
    • C07C62/32Unsaturated compounds containing hydroxy or O-metal groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Description

  

  Verfahren     zur    Herstellung eines neuen     Oxyhydrophenanthren#Derivates.       Es wurde     gefunden,    dass man zu einem  neuen     Oxyhydrophenanthren-Derivat    gelan  gen kann, wenn man die     1-Athyl-2-methyl-          7    -     oxy    - 1,2,8,4 -     tetrahydro    -     phenanthren    - 2     -          carbonsäure    mit einem veresternden Mittel  behandelt,

   das die     Hydroxylgruppe    in     7-          Stellung    in die     Acetogygruppe    überführt.  



       Das    noch nicht     bekannte    Endprodukt des  Verfahrens, die     1-Äthyl-2-methyl-7-acetoxy-          1,2,3,4-tetrahydro-phenanthren-2-ca.rbonsäure     vom F. 178-180 , 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     Flydroxylgruppe     in     7-Stellung    in die     Acetoxygruppe    verwen  det man Essigsäure     bezw.        ihre    Derivate, wie  z. B.     Acetanhydrid    oder     Acetylehlorid.    Vor  teilhaft     arbeitet    man in Gegenwart von     Kon-          densationsmitteln    und/oder Katalysatoren.  



  Der Ausgangsstoff wird z. B. erhalten  aus dem 7-Methoxy-l-keto-2-methyl-1,2,3,4       tetrahydro-phenanthren-2-carbonsäuremethyl-          ester    durch     Grignardierung    mit einem     Äthyl-          magnesiumhalogenid,        Wasserabspaltung    aus  dem erhaltenen     Carbinol,        Verseifung    der       2-Carbonsäuremethyles:ter-    und der     7-Meth-          oxy-Gruppe    und     Hydrierung    der Äthylen  doppelbindung.  



  <I>Beispiel:</I>  1 Gewichtsteil     1-Äthyl-2-methyl-7-ogy-          1,2,3,4-tetrahydro-phenanthren-2-earbonsäure     der Formel  
EMI0001.0053     
         erwärmt    man in einer Mischung von 10     Vo-          lumteilen        Pyridin    und     @        Volumteilen        Acet-          anhydrid    während 4-5 Stunden auf dem  Wasserbad.

   Nach dem Erkalten wird Wasser       zugegeben,        mit        Äther     und der  Äther     mit    Salzsäure,     Biearbonatlösung        und     Wasser gewaschen.

   Der     Rückstand    der ver  dampften Ätherlösung liefert, nach     Um-          kristallisieren        aus        verdünntem    Alkohol, die       oestrogen        wirksame    1- Äthyl - 2 -     methyl    - 7     -          acetoxy    -1,2,3,4 -     tetrahydro    -     phenanthren-        2-          earbonsäure    vom F. 178-180  und der  Formel  
EMI0001.0082     
    Den Ausgangsstoff erhält man z.

   B. wie  folgt: 6,5 Gewichtsteile     1-geto-2-methyl-7-          methoxy    -1,2,8,4     -tetrahydro@-        phenanthren-        2-          carbonsäuremethylester    lässt man     mit    einer       Grignardlösung,    hergestellt aus 0,6     Ge-          wichtsteilen    Magnesium und 2     Volumteilen          Äthylbromid,        reagieren,    erwärmt 6     Gewichts-          teile    des so erhaltenen     Carbinols    vom F.

   153   zwecks Wasserabspaltung mit 25 Volum-      teilen     -Ameisensäure    auf dem     Wasserbad,     verseift die     Carbonsäuremethylester-    und dis       Methoxy-Gruppe    durch Erhitzen von 5 Ge  wichtsteilen     Wasserabspaltungsprodukt        (1-          Äthyliden-2        -methyl-7-methoxy-1,2,3,4-tetra-          hydro    -     phenanthren    - 2 -     oarbonsäuremethyl        -          ester)

      in     einer        Mischung    von 25 Gewichts  teilen     galiumhydroxyd    und 50     Volumteilen     Alkohol im     Einschlussrohr    auf 190-210   und     hydriert    2     Gewichtsteile    der ungesättig  ten     Oxysäure    in 100     Volumteilen        ln-Natron-          la.uge    in Gegenwart von 2 Gewichtsteilen  eines     Nickelkatalysators    zur 1-Äthyl-2       methyl-7-oxy-1,2,3,4-tetrahydro-phenanthren-          2-carbonsäure    vom F. 204 .



  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-1,2,8,4-tetrahydro-phenanthrene-2-carboxylic acid is mixed with an esterifying agent treated,

   which converts the hydroxyl group in the 7-position into the acetogy group.



       The as yet unknown end product of the process, the 1-ethyl-2-methyl-7-acetoxy-1,2,3,4-tetrahydro-phenanthrene-2-carboxylic acid of F. 178-180, shows both par- enteral and 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 Flydroxylgruppe in 7-position into the acetoxy group you use acetic acid respectively. their 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 the 7-methoxy-l-keto-2-methyl-1,2,3,4 tetrahydro-phenanthrene-2-carboxylic acid methyl ester by Grignardation with an ethyl magnesium halide, elimination of water from the carbinol obtained, saponification of the 2 -Carboxylic acid methyls: ter and the 7-methoxy group and hydrogenation of the ethylene double bond.



  <I> Example: </I> 1 part by weight of 1-ethyl-2-methyl-7-ogy-1,2,3,4-tetrahydro-phenanthrene-2-carboxylic acid of the formula
EMI0001.0053
         it is heated in a mixture of 10 parts by volume of pyridine and 3 parts by volume of acetic anhydride on a water bath for 4-5 hours.

   After cooling, water is added, washed with ether and the ether with hydrochloric acid, carbonate solution and water.

   The residue of the evaporated ether solution gives, after recrystallization from dilute alcohol, the estrogenically active 1-ethyl-2-methyl-7-acetoxy-1,2,3,4-tetrahydro-phenanthrene-2-carboxylic acid with a melting point of 178 -180 and the formula
EMI0001.0082
    The starting material is obtained z.

   B. as follows: 6.5 parts by weight of 1-geto-2-methyl-7-methoxy -1,2,8,4-tetrahydro @ -phenanthrene-2-carboxylic acid methyl ester is left with a Grignard solution, prepared from 0.6 Ge parts by weight of magnesium and 2 parts by volume of ethyl bromide, react, heats 6 parts by weight of the resulting carbinol from F.

   153 for the purpose of splitting off water with 25 parts by volume of formic acid on the water bath, saponify the methyl carboxylate and methoxy groups by heating 5 parts by weight of water splitting product (1-ethylidene-2-methyl-7-methoxy-1,2,3,4 -tetra- hydro - phenanthrene - 2 - carboxylic acid methyl ester)

      in a mixture of 25 parts by weight of galium hydroxide and 50 parts by volume of alcohol in the containment tube to 190-210 and hydrogenated 2 parts by weight of the unsaturated oxyacid in 100 parts by volume of sodium hydroxide solution in the presence of 2 parts by weight of a nickel catalyst to give 1-ethyl-2-methyl -7-oxy-1,2,3,4-tetrahydro-phenanthrene-2-carboxylic acid of F. 204.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines neuen Oxyhydrophenanthren-Derivates, dadurch ge- kennzeichnet, dass man die 1-Äthyl-2-methyl- 7 - oxy-1,2,3,4 -tetrahydro-phenanthren-2-car- bonsäure mit einem veresternden Mittel be handelt, das die Hydroxylgrupps in 7-Stel- lung in die Acetoxygruppe überführt. PATENT CLAIM: Process for the production of a new oxyhydrophenanthrene derivative, characterized in that 1-ethyl-2-methyl-7-oxy-1,2,3,4-tetrahydro-phenanthrene-2-carboxylic acid with a esterifying agent treats which converts the hydroxyl groups in the 7-position into the acetoxy group. Das noch nicht bekannte Endprodukt des Verfahrens, die 1-Äthyl-2-methyl-7-acetoxy- 1,2,3,4-tetrahydro-phenanthren-2-carbonsäure vom F. 178-180 , 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 therapeutisch verwendbarer Verbindungen dienen. The as yet unknown end product of the process, the 1-ethyl-2-methyl-7-acetoxy-1,2,3,4-tetrahydro-phenanthrene-2-carboxylic acid of F. 178-180, shows both parenteral and an extraordinarily high estrogenic effect even with oral application. It should find therapeutic use or serve as an intermediate for the preparation of therapeutically useful compounds. UNTERANSPRÜUCHE 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man als verestern- des Mittel Aeetanhydrid verwendet. 2. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man als verestern des Mittel Acetylchlorid verwendet. SUBClaims 1. The method according to claim, characterized in that the esterifying agent used is aeetic anhydride. 2. The method according to claim, characterized in that acetyl chloride is used as the esterifying agent.
CH250373D 1944-01-10 1944-01-10 Process for the preparation of a new oxyhydrophenanthrene derivative. CH250373A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CH250373A true CH250373A (en) 1947-08-31

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Family Applications (1)

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CH250373D CH250373A (en) 1944-01-10 1944-01-10 Process for the preparation of a new oxyhydrophenanthrene derivative.

Country Status (1)

Country Link
CH (1) CH250373A (en)

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