CH273601A - Process for the preparation of a compound of the cyclopentanopolyhydrophenanthrene series which contains an oxygen-containing group in ring C. - Google Patents

Process for the preparation of a compound of the cyclopentanopolyhydrophenanthrene series which contains an oxygen-containing group in ring C.

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Publication number
CH273601A
CH273601A CH273601DA CH273601A CH 273601 A CH273601 A CH 273601A CH 273601D A CH273601D A CH 273601DA CH 273601 A CH273601 A CH 273601A
Authority
CH
Switzerland
Prior art keywords
compound
oxygen
parts
preparation
ring
Prior art date
Application number
Other languages
German (de)
Inventor
Nv Organon
Original Assignee
Nv Organon
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 Nv Organon filed Critical Nv Organon
Publication of CH273601A publication Critical patent/CH273601A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

  

  Verfahren zur Herstellung einer im Ring C eine sauerstoffhaltige Gruppe  enthaltenden Verbindung der     Cyclopentanopolyhydrophenanthren-Reihe.       Es wurde gefunden, dass man zu     Dehydro-          eoi,tieostei-ori-aeetat        gelangen    kann, wenn man       d        4.1    1 -     27.        --Aeetoxy        -,14regnadien-    3,20 -     dion    mit.

         unterhalogeniger    Säure behandelt, auf das  entstandene     Halogenhydrin    zwecks Bildung  eines     Ketohalo-enids    oxydierende Mittel ein  wirken lässt     und    aus dein     1Letohalogenid    mit  reduzierenden Mitteln das Halogen entfernt.  



  Den Ausgangsstoff kann man unter an  derem gemäss dem Verfahren des Patentes  Nr.     2-15275    erhalten.  



  Die     unterhalogenige    Säure kann auch z. B.  bei     CTegenwart    der Steroidverbindung     aus     ihren Salzen,     Äthern    oder Estern oder solchen       Stoffen    erzeugt werden, die in Gegenwart von  Wasser oder     Py        ridin        unterhalogenige    Säure  abgeben, wie beispielsweise     Bromaeetamid     oder Chloramin.  



  Auf (las erhaltene     Halogenhydrin    werden  zuerst     oxydierende    Mittel, z. B. Chromsäure in  Eisessig, dann,     zwecks    Entfernung des Halo  genatoms, reduzierende     Mittel,    z. B. Zink und  Eisessig, einwirken     --elassen.     



  Das auf diese Weise erhaltene A     4-Pregnen-          3,11,20-trion-21-ol-acetat        (Deliydi-o-corticoste-          i*on-acetat)    ist identisch     finit    dem bekannten  natürlichen Produkt. Es soll therapeutische  Verwendung finden oder als Zwischenprodukt.  zur     Herstellung    therapeutisch verwertbarer  Verbindungen dienen.

           Beispiel:     6 Teile d     4,11-21-Acetoxy-pregnadien-3,20-          dion    werden in 210 Teilen Aceton gelöst und    dazu bei einer Temperatur von 18  C die  Lösung von 5 Teilen     N-Brom-acetamid,    5 Tei  len     Natriumacetat        krist,    und 2,5 Teilen  Eisessig in 140 Teilen Wasser, innerhalb  15 Minuten unter Rühren     zutropfen    gelassen.  Nach 1 Stunde wird das Aceton im Vakuum  grösstenteils entfernt und das ausgefallene  Produkt nach Zugabe von etwa 100 Teiler.

    Wasser in Äther aufgenommen, letztere Lö  sung mit Wasser, verdünnter     -Sodalösung    und  wieder Wasser durchgeschüttelt, über Na  triumsulfat getrocknet und eingedampft. Den  Rückstand löst man in 80 Teilen Eisessig und  gibt etwa 60 Teile einer 2      /o        igen    Chromsäure  lösung in 98      /o        ige    Essigsäure, bei einer Tem  peratur von 18  C in kleinen Portionen hinzu,  bis ein geringer     Chromsäureüberschuss    inner  halb einer halben Stunde nicht mehr ver  braucht wird. Dieser     Cr03-Überschuss    wird  schliesslich mit. einigen Tropfen Natrium  bisulfitlösung zerstört.  



  Zur     Entbromung    löst man 9 Teile Na  triumacetat     krist.    in obiger     Eisessiglösung,     gibt 12 Teile     Zinkstaub    hinzu und erwärmt       -unter    Schütteln 10 Min. auf 70  C. Nach dem  Absaugen vom Zinkschlamm wird der Eisessig  im Vakuum     weitgehend        abdestilliert    und der  Rückstand nach Zugabe von Wasser in     Äther-          Chloroform    aufgenommen.

   Die mit verdünn  ter Salzsäure und     verdünnter        Sodalösung          clurchgeschüttelte        Äther-Chloroform-Lösung     wird mit Natriumsulfat getrocknet und einge  dampft. Rückstand 6 Teile. Beim Behandeln  des harzigen Rückstandes mit Äther kristalli-           siert    ein Teil des gebildeten     11-Dehydrocorti-          eosteronacetates    vom     Schmp.    177 bis 179  C;  während der andere Teil neben unveränder  tem d     4,11-21-Acetoxy-pregnadien-3,20-dion     durch     chromatographische    Trennung aus der  Mutterlauge isoliert wird.



  Process for the preparation of a compound of the cyclopentanopolyhydrophenanthrene series which contains an oxygen-containing group in ring C. It has been found that dehydro- eoi, tieostei-ori-aeetat can be obtained if one d 4.1 1 - 27. - aetoxy -, 14regnadiene 3,20 - dione with.

         Treated hypohalous acid, let oxidizing agents act on the halohydrin formed to form a ketohalo-enide and remove the halogen from the letohalide with reducing agents.



  The starting material can be obtained, among other things, by the method of Patent No. 2-15275.



  The hypohalous acid can also be e.g. B. in the presence of the steroid compound from their salts, ethers or esters or those substances that give off hypohalous acid in the presence of water or pyridine, such as bromaeetamide or chloramine.



  Oxidizing agents, e.g. chromic acid in glacial acetic acid, are allowed to act on the halohydrin obtained, then reducing agents, e.g. zinc and glacial acetic acid, to remove the halogen atom.



  The A 4-pregnene-3,11,20-trione-21-ol acetate (Deliydi-o-corticosteion acetate) obtained in this way has the same finite finish as the known natural product. It should find therapeutic use or as an intermediate. serve to produce therapeutically utilizable compounds.

           Example: 6 parts of d 4,11-21-acetoxy-pregnadiene-3,20-dione are dissolved in 210 parts of acetone and for this purpose the solution of 5 parts of N-bromoacetamide, 5 parts of sodium acetate crystalline at a temperature of 18 ° C. , and 2.5 parts of glacial acetic acid in 140 parts of water, allowed to drop in over 15 minutes with stirring. After 1 hour, most of the acetone is removed in vacuo and the precipitated product after adding about 100 parts.

    Water taken up in ether, the latter solution with water, dilute soda solution and water again shaken, dried over sodium sulfate and evaporated. The residue is dissolved in 80 parts of glacial acetic acid and about 60 parts of a 2% chromic acid solution in 98% acetic acid are added in small portions at a temperature of 18 ° C. until a slight excess of chromic acid no longer occurs within half an hour is consumed. This Cr03-surplus is finally with. a few drops of sodium bisulfite solution destroyed.



  To remove bromine, 9 parts of sodium acetate are dissolved. in the above glacial acetic acid solution, add 12 parts of zinc dust and heat - with shaking for 10 minutes to 70 C. After the zinc sludge has been suctioned off, the glacial acetic acid is largely distilled off in vacuo and the residue is taken up in ether-chloroform after adding water.

   The ether-chloroform solution shaken through with dilute hydrochloric acid and dilute soda solution is dried with sodium sulfate and evaporated. Residue 6 parts. When the resinous residue is treated with ether, part of the 11-dehydrocortieosterone acetate formed crystallizes with a melting point of 177 to 179 ° C .; while the other part, in addition to unchanged tem d 4,11-21-acetoxy-pregnadiene-3,20-dione, is isolated from the mother liquor by chromatographic separation.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Dehydro- cortico-steron-acetat, dadurch gekennzeichnet, dass man d 4,11 _ 21-Acetoxy-pregnadien-3,20- dion mit, unterhalogeniger Säure behandelt, auf das entstandene Halogenhydrin zwecks Bildung eines Ketohalogenids oxydierende Mittel einwirken lässt und aus dem Keto- halogenid mit reduzierenden Mitteln das Ha logen entfernt. PATENT CLAIM: Process for the production of dehydrocortico-sterone acetate, characterized in that d 4.11 _ 21-acetoxy-pregnadiene-3,20-dione is treated with hypohalous acid, oxidizing to the halohydrin formed to form a ketohalide Lets the agent act and removes the halogen from the keto halide with reducing agents. UNTERANSPRUCH: Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass unterhalogenige Säure verwendet wird, welche in Gegenwart des Ausgangsstoffes hergestellt. wurde. SUBClaim: Method according to claim, characterized in that hypohalous acid is used, which is produced in the presence of the starting material. has been.
CH273601D 1942-04-25 1942-04-25 Process for the preparation of a compound of the cyclopentanopolyhydrophenanthrene series which contains an oxygen-containing group in ring C. CH273601A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH273601T 1942-04-25
CH251117T 1942-10-08

Publications (1)

Publication Number Publication Date
CH273601A true CH273601A (en) 1951-02-15

Family

ID=25729505

Family Applications (1)

Application Number Title Priority Date Filing Date
CH273601D CH273601A (en) 1942-04-25 1942-04-25 Process for the preparation of a compound of the cyclopentanopolyhydrophenanthrene series which contains an oxygen-containing group in ring C.

Country Status (1)

Country Link
CH (1) CH273601A (en)

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