CH377337A - Process for the preparation of 11B, 18-oxido-steroids - Google Patents

Process for the preparation of 11B, 18-oxido-steroids

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Publication number
CH377337A
CH377337A CH6947659A CH6947659A CH377337A CH 377337 A CH377337 A CH 377337A CH 6947659 A CH6947659 A CH 6947659A CH 6947659 A CH6947659 A CH 6947659A CH 377337 A CH377337 A CH 377337A
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CH
Switzerland
Prior art keywords
steroids
hydroxy
oxido
reacted
oxidizing
Prior art date
Application number
CH6947659A
Other languages
German (de)
Inventor
Jeger Oskar Dr Prof
Duilio Dr Arigoni
Original Assignee
Ciba Geigy
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Publication date
Application filed by Ciba Geigy filed Critical Ciba Geigy
Priority to CH6947659A priority Critical patent/CH377337A/en
Publication of CH377337A publication Critical patent/CH377337A/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J71/00Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • 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)
  • Steroid Compounds (AREA)

Description

  

  Verfahren zur Herstellung von     llss,18-Oxido-steroiden       Es wurde gefunden, dass man in einfacher Weise  zu     11ss,18-Oxido-steroiden    gelangen kann, wenn man  entsprechende     llss-Hydroxy-steroide    mit oxydierend  wirkenden     Acyloxy-Radikalen    umsetzt.  



  Das Verfahren ist im folgenden     Teilformelschema     veranschaulicht:  
EMI0001.0006     
    Die oxydierend wirkenden     Acyloxy-Radikale    kön  nen durch Spaltung von     Metall-Acylaten    erhalten  werden. Von den     Metall-Acylaten    sind besonders zu  nennen die     Bleitetraacylate,    z. B.     Bleitetraacetat    oder       Bleitetrabenzoat.    Die obigen Umsetzungen lassen sich  durch Zugabe von Peroxyden, z. B.     Benzoylperoxyd,     katalysieren.

   Die Reaktion wird vorzugsweise in ge  eigneten, gegenüber dem Oxydationsmittel     inerten     Lösungsmitteln, wie     Kohlenwasserstoffen,    z. B. Benzol,  durchgeführt. Besonders geeignet sind gesättigte     Koh-          lenwasserstoffe,    wie     Cyclohexan,    in erster Linie     Me-          thylcyclohexan,    ferner     Dimethylcyclohexane    usw.,  vorteilhaft in Gegenwart von schwachen Basen, z. B.       Calciumcarbonat.    Zweckmässig arbeitet man bei  Temperaturen zwischen 50 und 100 . Es ist aber auch  möglich, die Reaktion unterhalb oder oberhalb dieses  Temperaturbereiches durchzuführen.  



  Als Ausgangsstoffe für das vorliegende Verfahren  eignen sich beliebige     llss-Hydroxy-steroide,    die sich  vom     Cholestan,        Koprostan,        Ergostan,        Spirostan,        Cho-          lan,        Norcholan,        Bisnorcholan,        Pregnan    oder     Andro-          stan    ableiten.

   Besonders zu nennen sind die 11ss  Hydroxy-pregnane und     llss-Hydroxy-androstane    der  5a- und     5ss-Reihe.    Die Ausgangsstoffe können im  Ringsystem, insbesondere in einer oder mehreren der    Stellungen 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 15, 16,  17, 20, 21 usw., weitere     Substituenten    aufweisen,  wie veresterte oder     verätherte        Hydroxygruppen    oder  freie oder     ketalisierte        Oxogruppen,        Alkylgruppen,    wie       Methyl    oder Halogene. Ausserdem können die Aus  gangsstoffe auch Doppelbindungen aufweisen, z. B.

    ausgehend vom     Kohlenstoffatom    5, das heisst in     4,5-          oder        5,6-Stellung.    Als Ausgangsstoffe eignen sich be  sonders die folgenden Verbindungen:     3ss,11        ss-Di-          hydroxy-cholestan,        3ss,11ss-Dihydroxy-spirostan,        3ss,          11ss-Dihydroxy-20-äthylendioxy-5a-pregnan,        3a,llss-          Dihydroxy-20-äthylendioxy-5ss-pregnan,        3ss,11ss,17ss-          Trihydroxy-5a-androstan,        3a,11ss,

  17ss-Trihydroxy-5ss-          androstan,    sowie die     3-Monoester    und     3-Monoäther     bzw. die     3,17-Diester    der genannten Verbindungen;  ferner die     3,20-Bisketale    von     Hydrocortison,        2a-Me-          thyl-hydrocortison,        6a-Methyl-hydrocortison,        6-Fluor-          und        6-Chlor-hydrocortison,        16a-Hydroxy-hydrocor-          tison,    16a- und     16ss-Methyl-hydrocortison,

          Cortico-          steron,    l     lss-Hydroxy-progesteron,    sowie die     3,20-Bis-          ketale    der entsprechenden     9a-Halogen-,    insbesondere       9a-Fluorderivate;    die     3-Monoketale    von 11ss  Hydroxy-testosteron,     llss-Hydroxy-17a-methyl-testo-          steron-17ss-acetat,        9a-Fluor-llss-hydroxy-17a-methyl-          testosteron-17ss-acetat.     



  Die     genannten        11ss,18-Oxido-steroide    sind phar  makologisch wirksam. So zeigen die verfahrensgemäss  erhältlichen     Pregnan-Verbindungen    eine Wirkung auf  den Mineralstoffwechsel, die mit derjenigen bekann  ter Nebennierenhormone vergleichbar ist. Die     Andro-          stan-Verbindungen    weisen eine     anabole    Wirkung auf  in Dosen, in denen die     androgene    Wirkung von unter  geordneter Bedeutung ist.     Ferner    können z.

   B. so  wohl die     Androstan-    wie die     Pregnan-Verbindungen     auch als Zwischenprodukte zur Herstellung von be  kannten physiologisch wirksamen Verbindungen ver  wendet werden. So lässt sich z. B. in ihnen die      11 :18 -     Oxidogruppe    mittels     Chromtrioxyd    oder       Ruthenium-tetroxyd    in die (11<B>-</B>18)     Lakton-          gruppe        überführen,    und man erhält so Verbindungen,  die nach bekannten Methoden, z. B. in Derivaten des       Aldosterons    und seiner nächsten Verwandten, um  gewandelt werden können.

   Sofern in den Verfahrens  produkten     in        17-Stellung    die Seitenketten der anderen  oben erwähnten Steroidreihen vorhanden sind, lassen  sich dieselben nach ebenfalls bekannten Methoden  zu     Androstan-    oder     Pregnan-Verbindungen    abbauen.  



  Die Temperaturen sind im nachfolgenden Bei  spiel in Celsiusgraden angegeben.  



  <I>Beispiel</I>  500 mg     d5-3,20-Bisäthylendioxy-llss-hydroxy-          pregnen    werden in 30     cm33    Benzol gelöst, die Lösung  mit 820 mg     Blei-(IV)-acetat    versetzt und über Nacht  am     Rückfluss    gekocht. Die erhaltene Suspension wird  auf     Kaliumjodid-Lösung    gegossen, das Gemisch mit  Äther     extrahiert    und die organische Phase mit ver  dünnter     Natriumsulfit-Lösung    und mit Wasser ge  waschen. Der nach Abdampfen des Äthers erhaltene  Rückstand wird durch     Chromatographie    an neu  tralem Aluminiumoxyd der Aktivität     II    gereinigt.

   Mit       Benzol-Hexan    1:1 und Benzol     eluiert,    erhält man  zuerst 295 mg     d5-3,20-Bis-äthylendioxy-11-oxo-          pregnen.    Hierauf folgen, mit Benzol und     Benzol-          Essigester   <B>9:

  1</B>     eluiert,    130 mg eines     Oxo-    und     hy-          droxylgruppenfreien    Rohproduktes, das bei der     Ketal-          spaltung    mittels     p-Toluolsulfonsäure    in     Acetonlösung     15 mg     d4-3,20-Dioxo-llss,18-oxido-pregnen        (11,ss,          18-Oxido-progesteron)    vom F. 151,5-153  liefert.  



  In analoger Weise lassen sich die in der Be  schreibung genannten     11/3-Hydroxysteroide    in die    entsprechenden     llss,18-Oxidoverbindungen    überfüh  ren, beispielsweise das     3ss-Acetoxy-llss-hydroxy-20-          äthylendioxy-5a-pregnan        (F.    141-143 ) in das 3ss  Acetoxy-20-oxo-llss,18-oxido-5a-pregnan vom  F. 145-146 .



  Process for the production of 11ss, 18-oxido-steroids It has been found that 11ss, 18-oxido-steroids can be obtained in a simple manner if corresponding 11ss-hydroxy-steroids are reacted with oxidizing acyloxy radicals.



  The procedure is illustrated in the following sub-formula:
EMI0001.0006
    The oxidizing acyloxy radicals can be obtained by cleaving metal acylates. Of the metal acylates, particular mention should be made of lead tetraacylates, e.g. B. lead tetraacetate or lead trabenzoate. The above reactions can be carried out by adding peroxides, e.g. B. Benzoyl peroxide, catalyze.

   The reaction is preferably carried out in suitable solvents which are inert to the oxidizing agent, such as hydrocarbons, e.g. B. benzene performed. Saturated hydrocarbons, such as cyclohexane, primarily methylcyclohexane, also dimethylcyclohexanes, etc., are particularly suitable, advantageously in the presence of weak bases, e.g. B. calcium carbonate. It is advisable to work at temperatures between 50 and 100. But it is also possible to carry out the reaction below or above this temperature range.



  Any desired IIIss-hydroxy steroids which are derived from cholestane, coprostane, ergostane, spirostane, cholan, norcholane, bisnorcholane, pregnane or androstane are suitable as starting materials for the present process.

   Particular mention should be made of the 11ss hydroxy-pregnanes and 11ss-hydroxy-androstanes of the 5a and 5ss series. The starting materials can have further substituents in the ring system, in particular in one or more of the positions 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 15, 16, 17, 20, 21, etc. such as esterified or etherified hydroxyl groups or free or ketalized oxo groups, alkyl groups such as methyl or halogens. In addition, the starting materials can also have double bonds, eg. B.

    starting from carbon atom 5, i.e. in 4,5 or 5,6-position. The following compounds are particularly suitable as starting materials: 3ss, 11ss-dihydroxy-cholestane, 3ss, 11ss-dihydroxy-spirostane, 3ss, 11ss-dihydroxy-20-ethylenedioxy-5a-pregnane, 3a, llss-dihydroxy-20 -äthylendioxy-5ss-pregnan, 3ss, 11ss, 17ss- trihydroxy-5a-androstane, 3a, 11ss,

  17ss-Trihydroxy-5ss- androstane, as well as the 3-monoesters and 3-monoethers or the 3,17-diesters of the compounds mentioned; also the 3,20-bis-ketals of hydrocortisone, 2a-methyl-hydrocortisone, 6-methyl-hydrocortisone, 6-fluoro- and 6-chloro-hydrocortisone, 16a-hydroxy-hydrocortisone, 16a- and 16ss-methyl- hydrocortisone,

          Corticosterone, lss-hydroxy-progesterone, and the 3,20-bisketals of the corresponding 9a-halogen, in particular 9a-fluorine derivatives; the 3-monoketals of 11ss hydroxy-testosterone, llss-hydroxy-17a-methyl-testosterone-17ss-acetate, 9a-fluoro-llss-hydroxy-17a-methyl-testosterone-17ss-acetate.



  The mentioned 11ss, 18-oxido-steroids are pharmacologically effective. Thus, the pregnane compounds obtainable according to the method show an effect on the mineral metabolism which is comparable to that of known adrenal hormones. The androstane compounds have an anabolic effect in doses in which the androgenic effect is of subordinate importance. Furthermore, z.

   B. as well as the androstane as the pregnane compounds can also be used as intermediates for the production of known physiologically active compounds. So z. B. in them the 11:18 - oxido group by means of chromium trioxide or ruthenium tetroxide into the (11 <B> - </B> 18) lactone group, and compounds are obtained that can be prepared by known methods, e.g. B. in derivatives of aldosterone and its closest relatives to can be converted.

   If the side chains of the other steroid series mentioned above are present in the process products in the 17-position, they can be broken down into androstane or pregnane compounds by methods that are also known.



  The temperatures are given in degrees Celsius in the example below.



  <I> Example </I> 500 mg of d5-3,20-bisäthylenedioxy-llss-hydroxypregnen are dissolved in 30 cm33 of benzene, the solution is mixed with 820 mg of lead (IV) acetate and refluxed overnight. The suspension obtained is poured onto potassium iodide solution, the mixture is extracted with ether and the organic phase is washed with dilute sodium sulfite solution and with water. The residue obtained after evaporation of the ether is purified by chromatography on neutral aluminum oxide of activity II.

   Eluted with benzene-hexane 1: 1 and benzene, 295 mg of d5-3,20-bis-ethylenedioxy-11-oxo-pregnene are first obtained. This is followed with benzene and benzene-ethyl acetate <B> 9:

  1 </B> eluted, 130 mg of an oxo and hydroxyl group-free crude product, which in the ketal cleavage using p-toluenesulfonic acid in acetone solution 15 mg of d4-3,20-dioxo-llss, 18-oxido-pregnen ss, 18-oxido-progesterone) of F. 151.5-153.



  In an analogous manner, the 11/3 hydroxysteroids mentioned in the description can be converted into the corresponding 11ss, 18-oxido compounds, for example 3ss-acetoxy-11ss-hydroxy-20-ethylenedioxy-5a-pregnane (F. 141-143 ) into the 3ss acetoxy-20-oxo-llss, 18-oxido-5a-pregnane from F. 145-146.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von llss.18-Oxido- steroiden, dadurch gekennzeichnet, dass man entspre chende 18-unsubstituierte llss-Hydroxy-steroide mit oxydierend wirkenden Acyloxy-Radikalen umsetzt. UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch, dadurch ge kennzeichnet, dass man die 11/3-Hydroxy-steroide mit oxydierend wirkenden Acyloxy-Radikalen umsetzt, die durch Spaltung von Metall-Acylaten entstehen. 2. Verfahren nach Unteranspruch 1, dadurch ge kennzeichnet, dass man mit Bleitetraacetat umsetzt. 3. PATENT CLAIM Process for the production of IIss.18-oxido steroids, characterized in that corresponding 18-unsubstituted IIss-hydroxy steroids are reacted with oxidizing acyloxy radicals. SUBClaims 1. The method according to claim, characterized in that the 11/3 hydroxy steroids are reacted with oxidizing acyloxy radicals which are formed by cleavage of metal acylates. 2. The method according to dependent claim 1, characterized in that it is reacted with lead tetraacetate. 3. Verfahren nach Patentanspruch und den Unter ansprüchen 1 und 2, dadurch gekennzeichnet, dass man 11/3-Hydroxy-steroide der Cholestan-, Kopro- stan-, Ergostan-, Spirostan-, Cholan-, Norcholan-, Bisnorcholan-, Pregnan- oder Androstanreihe ver wendet. 4. Verfahren nach Unteranspruch 3, dadurch gekennzeichnet, dass man das 3.20-Bisäthylenketal von llss-Hydroxy-progesteron als Ausgangsstoff ver wendet. 5. A method according to claim and the sub-claims 1 and 2, characterized in that 11/3-hydroxy steroids of the Cholestan-, Koprostan-, Ergostan-, Spirostan-, Cholan-, Norcholan-, Bisnorcholan-, Pregnan- or Androstane series used. 4. The method according to dependent claim 3, characterized in that the 3.20-bisethylene ketal of llss-hydroxy-progesterone is used as the starting material. 5. Verfahren nach Patentanspruch und den Un teransprüchen 1 bis 4, dadurch gekennzeichnet, dass man in erhaltenen Verfahrensprodukten geschützte Oxogruppen in Freiheit setzt. Process according to patent claim and the sub-claims 1 to 4, characterized in that protected oxo groups are set free in the process products obtained.
CH6947659A 1959-02-12 1959-02-12 Process for the preparation of 11B, 18-oxido-steroids CH377337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH6947659A CH377337A (en) 1959-02-12 1959-02-12 Process for the preparation of 11B, 18-oxido-steroids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH6947659A CH377337A (en) 1959-02-12 1959-02-12 Process for the preparation of 11B, 18-oxido-steroids

Publications (1)

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CH377337A true CH377337A (en) 1964-05-15

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