CH242992A - Process for the preparation of a new compound of the cyclopentanopolyhydro-phenanthrene series. - Google Patents

Process for the preparation of a new compound of the cyclopentanopolyhydro-phenanthrene series.

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Publication number
CH242992A
CH242992A CH242992DA CH242992A CH 242992 A CH242992 A CH 242992A CH 242992D A CH242992D A CH 242992DA CH 242992 A CH242992 A CH 242992A
Authority
CH
Switzerland
Prior art keywords
keto
acid
cyclopentanopolyhydro
preparation
methyl ester
Prior art date
Application number
Other languages
German (de)
Inventor
Reichstein Tadeus Dr Professor
Original Assignee
Reichstein Tadeus Dr Professor
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 Reichstein Tadeus Dr Professor filed Critical Reichstein Tadeus Dr Professor
Publication of CH242992A publication Critical patent/CH242992A/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J9/00Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of more than two carbon atoms, e.g. cholane, cholestane, coprostane
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J3/00Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by one carbon atom
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J5/00Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J7/00Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J75/00Processes for the preparation of steroids in general

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung einer neuen Verbindung der     Cyclopentanopolyhydro-          phenanthren-Reihe.       Es wurde gefunden, dass man zu einer im  Ring C ungesättigten     Verbindung    der     Cyclo-          pentanopolyhydrophenanthren    - Reihe gelan  gen kann, wenn man einen     3-Keto-bisnor-          cholansäure-methylester,    der im Ring C     in          12-Stellung    einen zusammen mit einem be  nachbarten Wasserstoffatom     abspaltbaren        Sub-          stituenten    aufweist,

   mit diesen     Substituenten     unter Bildung einer Doppelbindung abspal  tenden Mitteln behandelt.  



  Der 12 ständige, zusammen mit einem be  nachbarten Wasserstoffatom     abspaltbare        Sub-          stituent    des Ausgangsstoffes kann eine freie       Hydroxylgruppe    oder eine beispielsweise  durch     Carbonsäuren,    wie Essig-,     Propion-          oder        Benzoesäure,    durch     Sulfonsäuren,        Halo-          genwasserstoffsäuren    oder     Xanthogensäuren     veresterte     Hydroxylgruppe    sein.  



  Die     Abspaltung    dieses     Substituenten    unter         Hydroxylgruppe    unter der Einwirkung von  Mineralsäuren, vorzugsweise in Lösungsmit  teln, wie Eisessig, Alkohol,     Dioxan    und der  gleichen, von     Phosphoroxychlorid,        Bisul-          faten,    von Ameisensäure,     Oxalsäure,    von       Säureanhydriden,    wie     Acetanhydrid    oder       Phosphorpentoxyd,    oder durch die Einwir  kung von Katalysatoren, wie Jod- oder     Car-          bonsäure-Salzen,    abspalten.

   Eine veresterte       Hydroxylgruppe    wird ausser durch die ge  nannten Mittel vorzugsweise auch mit Alka  lien, Erdalkalien,     Carbonaten,    organischen  Basen, wie     Pyridin,        Dimethylanilin    usw., ab  gespalten. An Stelle oder in Kombination mit  den genannten Mitteln lässt sich auch erhöhte  Temperatur und/oder verminderter Druck an  wenden. Gegebenenfalls arbeitet man auch in  Gegenwart indifferenter Gase.

   Statt aus       Halogenwasserstoffsäureestern    direkt Ha  logenwasserstoff abzuspalten, kann man das      Das neue Verfahrensprodukt, der     d11.12_3-          Keto        -bisnor    -     cholensäure    -     methylester    vom  F. 122-123 , soll als Zwischenprodukt zur  Herstellung therapeutisch wertvoller Pro  dukte dienen.  



  <I>Beispiel:</I>       3-Keto-12    -     (anthrachinon-3-carboxy)-bis-          norcholansäure-methylester    (erhalten durch  energische     Acetylierung    von     Bisnor-desoxy-          cholsäure-methylester    zum entsprechenden       3,12-Diacetat,    partielle     Verseifung    zum     12-          Monoacetat,.    Oxydation zum     3-Keto-12-acet-          oxy-ester,

          Verseif        ung    zum     3-Keto-12-oxy-          ester    und anschliessende Umsetzung mit An  thrachinon -     ss    -     carbonsäurechlorid)    wird     im     Hochvakuum bei 0,1 mm auf 300  Metall  badtemperatur     erhitzt,    unter gleichzeitigem  Einleiten von Kohlendioxyd durch die feine  Kapillare. Nachdem der Kolbeninhalt über  destilliert ist, wird das Destillat mit Lauge  in neutrale und     alkalilösliche    Anteile zerlegt.

    Aus ersteren erhält man den     d11.12-3_Keto-          bisnorcholensäure-methylester    der Formel  
EMI0002.0029     
    Er lässt sich     zweclzmässig    durch     Chromato-          graphie    an Aluminiumoxyd reinigen und kri  stallisiert dann in farblosen Plättchen vom  F.     122-1230.       An Stelle des     12-Anthrachinon-ss-carbon-          säureesterskann    auch das entsprechende     Ben-          zoat    verwendet werden. Dasselbe Produkt  erhält man ferner z.

   B. durch Erhitzen des       12-Tosylates    oder     -1ATesylates    mit     Collidin     oder     Pyridin.  



  Process for the production of a new compound of the cyclopentanopolyhydrophenanthrene series. It has been found that a compound of the cyclopentanopolyhydrophenanthrene series which is unsaturated in the C ring can be obtained if a methyl 3-keto-bisnorcholanoate is used which has one in the 12-position in the C ring and one adjacent Has substituents that can be split off hydrogen atom,

   treated with these substituents to form a double bond cleaving agents.



  The 12 permanent substituent of the starting material which can be split off together with an adjacent hydrogen atom can be a free hydroxyl group or a hydroxyl group esterified, for example, by carboxylic acids, such as acetic, propionic or benzoic acid, by sulfonic acids, hydrohalic acids or xanthogenic acids.



  The elimination of this substituent under the hydroxyl group under the action of mineral acids, preferably in solvents such as glacial acetic acid, alcohol, dioxane and the like, of phosphorus oxychloride, bisulfates, of formic acid, oxalic acid, of acid anhydrides such as acetic anhydride or phosphorus pentoxide, or by the The effects of catalysts such as iodine or carboxylic acid salts are split off.

   An esterified hydroxyl group is not only cleaved by the agents mentioned, but also preferably with alkali, alkaline earths, carbonates, organic bases such as pyridine, dimethylaniline, etc., from. Instead of or in combination with the agents mentioned, it is also possible to use increased temperature and / or reduced pressure. You may also work in the presence of inert gases.

   Instead of splitting off hydrogen halide directly from hydrohalic acid esters, the new process product, the d11.12_3-keto-bisnor-cholenic acid methyl ester of F. 122-123, is intended to serve as an intermediate in the manufacture of therapeutically valuable products.



  <I> Example: </I> 3-Keto-12 - (anthraquinone-3-carboxy) -bis-norcholanic acid methyl ester (obtained by vigorous acetylation of bisnor-deoxycholic acid methyl ester to the corresponding 3,12-diacetate, partial Saponification to 12-monoacetate, oxidation to 3-keto-12-acetoxy-ester,

          Saponification to 3-keto-12-oxy ester and subsequent reaction with anthrachinone - ss - carboxylic acid chloride) is heated in a high vacuum at 0.1 mm to a metal bath temperature of 300 mm, while simultaneously introducing carbon dioxide through the fine capillary. After the contents of the flask have distilled over, the distillate is broken down into neutral and alkali-soluble fractions with lye.

    The d11.12-3_Keto-bisnorcholenic acid methyl ester of the formula is obtained from the former
EMI0002.0029
    It can be purified by chromatography on aluminum oxide and then crystallizes in colorless platelets of F. 122-1230. The corresponding benzoate can also be used instead of the 12-anthraquinone-β-carboxylic acid ester. The same product is also obtained e.g.

   B. by heating the 12-tosylate or -1ATesylates with collidine or pyridine.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer im Ring C ungesättigten Verbindung der Cyclopen- tanopolyhydrophenanthren-Reihe, dadurchge- kennzeichnet, dass man einen 3-Keto-bisnor- cholansäure-methylester, der im Ring C in 12-Stellung einen zusammen mit einem be nachbarten Wasserstoffatom abspaltbaren Substituenten aufw eist, PATENT CLAIM: Process for the production of a compound of the cyclopentanopolyhydrophenanthrene series which is unsaturated in ring C, characterized in that a methyl 3-keto-bisnorcholanoate which is in the 12-position in ring C together with an adjacent hydrogen atom removable substituents, mit diesen Substituen- ten unter Bildung einer Doppelbindung ab spaltenden Mitteln behandelt. Das neue Verfahrensprodukt, der dll#12-3- Keto - bisnorcholensäure - methylester vom F. 122-123 , soll als Zwischenprodukt zur Herstellung therapeutisch wertvoller Pro dukte dienen. UNTERANSPRÜUCHE: 1. Verfahren nach Patentanspruch, da durch gekennzeichnet, dass man als Ausgangs stoff einen 3-Keto-12-(anthrachinon-ss-carb- oxy)-bisnorcholansäure-methylester verwen det. 2. treated with these substituents to form a double bond cleaving agents. The new process product, the dll # 12-3-keto - bisnorcholenic acid - methyl ester of F. 122-123, is to serve as an intermediate product for the manufacture of therapeutically valuable products. SUBClaims: 1. The method according to claim, characterized in that a 3-keto-12- (anthraquinone-ss-carbo-oxy) -bisnorcholanoic acid methyl ester is used as the starting material. 2. Verfahren nach Patentanspruch und Unteranspruch 1, dadurch gekennzeichnet, dass man den Ausgangsstoff einer thermi schen Zersetzung unterwirft. Method according to claim and dependent claim 1, characterized in that the starting material is subjected to thermal decomposition.
CH242992D 1941-03-21 1941-03-21 Process for the preparation of a new compound of the cyclopentanopolyhydro-phenanthrene series. CH242992A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH242992T 1941-03-21
CH240789T 1942-01-28

Publications (1)

Publication Number Publication Date
CH242992A true CH242992A (en) 1946-06-15

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CH242992D CH242992A (en) 1941-03-21 1941-03-21 Process for the preparation of a new compound of the cyclopentanopolyhydro-phenanthrene series.

Country Status (1)

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CH (1) CH242992A (en)

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