CH535754A - 18-methyl-5alpha-h-androstanes anabolic agents - Google Patents

18-methyl-5alpha-h-androstanes anabolic agents

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Publication number
CH535754A
CH535754A CH1036772A CH1036772A CH535754A CH 535754 A CH535754 A CH 535754A CH 1036772 A CH1036772 A CH 1036772A CH 1036772 A CH1036772 A CH 1036772A CH 535754 A CH535754 A CH 535754A
Authority
CH
Switzerland
Prior art keywords
methyl
sep
process according
compounds
formula
Prior art date
Application number
CH1036772A
Other languages
German (de)
Inventor
Hans-Detlef Dr Berndt
Hermann Dr Steinbeck
Rudolf Dr Wiechert
Original Assignee
Schering Ag
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
Priority claimed from DE19681668687 external-priority patent/DE1668687C3/en
Application filed by Schering Ag filed Critical Schering Ag
Priority claimed from CH193569A external-priority patent/CH528492A/en
Publication of CH535754A publication Critical patent/CH535754A/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/56Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/565Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids not substituted in position 17 beta by a carbon atom, e.g. estrane, estradiol
    • A61K31/568Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids not substituted in position 17 beta by a carbon atom, e.g. estrane, estradiol substituted in positions 10 and 13 by a chain having at least one carbon atom, e.g. androstanes, e.g. testosterone
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J1/00Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Steroid Compounds (AREA)

Abstract

(A) Compds. (I): - where R = H or acyl - A-B = -CH2-CH2, -CH=CH-, =CH- - or - -CH2- and R' = H or acyl. - (B) Medicaments contg. (I). - Anabolic agents. - 15 g. (II; R=Ac) in 200 ml. Et2O/dioxane (1:1) added dropwise to 4.5 g. Li in 1500 ml. liquid NH3 at -70 deg.C, stirred 30 mins., 30 g. NH4Cl added over 30 mins., NH3 evapd., 500 ml. Et2O added, the soln. washed, dried and evapd., the residue chromatographed on SiO2 gel and eluted with hexane/Me2CO mixtures gave (I; A-B = CH2CH2, R = Ac) m 158.5-9.5 deg.C (iso-Pr2O).

Description

  

  Die Erfindung     betrifft    ein Verfahren zur Herstellung  neuer 18-Methyl-5α-H-androstan-Derivate der Formel  
EMI0001.0001     
    worin R ein Wasserstoffatom oder einen Acylrest bedeutet.  Als Acylrest R sollen insbesondere diejenigen solcher  Säuren verstanden sein, die in der Steroidchemie Bekannter  weise zur Veresterung freier Hydroxylgruppen verwendet  werden. Bevorzugt geeignet sind die Reste aliphatischer  Carbonsäuren mit insbesondere 1 bis 11 Kohlenstoffatomen  im Säurerest, wie beispielsweise Essigsäure, Propionsäure,  Capronsäure, Undecylsäure, u. ä.

   Selbstverständlich können  diese Säuren auch ungesättigt, verzweigt, mehrbasisch oder  in üblicher Weise substituiert sein; beispielsweise genannt  seien Trimethylessigsäure, tert.-Butylessigsäure, Phenylessig  säure, Cyclopentylpropionsäure, Halogenessigsäure,     Amino-          essigsäure,    Oxypropionsäure, Benzoesäure, Bernsteinsäure,  Adipinsäure u. a.  



  Das erfindungsgemässe Verfahren ist dadurch gekenn  zeichnet, dass man die A1-Doppelbindung von Verbindungen  der Formel  
EMI0001.0004     
  
EMI0001.0005     
  
    Tabelle
<tb>  Nr. <SEP> Substanz <SEP> Dosis <SEP> Organgew. <SEP> (mg/kg/Körpergew.)
<tb>  mg/Tier/Tag <SEP> Levator <SEP> ani <SEP> Samenblase
<tb>  I <SEP> 17ss-Propionyloxy-4  androsten-3-on <SEP> 1,0 <SEP> 55 <SEP> 529
<tb>  II <SEP> 17ss-Acetoxy-5&alpha;-androstan  3-on <SEP> 1,0 <SEP> 51 <SEP> 401
<tb>  III <SEP> 17ss-Acetoxy-1-methyl-5&alpha;  androst-1-en-3-on <SEP> 1,0 <SEP> 51 <SEP> 371
<tb>  VII <SEP> 1&alpha;-Hydroxy-17ss-acetoxy  18-methyl-5&alpha;-androstan-3-on <SEP> 1,0 <SEP> 52 <SEP> 248       epoxydiert, wobei Verbindungen der Formel  
EMI0001.0006     
    entstehen, und anschliessend den 1,2-Epoxydring reduktiv  aufspaltet.  



  Die Ausgangsverbindungen der Formel II können nach  dem Schweizer Patent Nr. 528 492 hergestellt werden. Diese  Verbindungen sind stark anabol wirksame Substanzen.  



  Je nach der Bedeutung von R kann eine freie     17-Hydroxyl-          gruppe    acyliert oder eine 17-Acyloxygruppe verseift werden.  Man kann z. B. in der Weise vorgehen, dass man nach  Epoxydierung der A1-Doppelbindung den 1,2-ständigen  Epoxyring gegebenenfalls nach intermediärem Schutz der  3-Ketogruppe mit z. B. komplexen Metallhydriden, wie  Lithiumaluminiumhydrid, reduktiv aufspaltet. Zwecks Ver  meidung des intermediären 3-Ketonschutzes ist die Reduktion  mit Lithium in flüssigem Ammoniak bevorzugt.

   In diesem  Zusammenhang sei darauf hingewiesen, dass bei der nachträg  lichen Veresterung der 17-Hydroxylgruppe die     1&alpha;-Hydroxyl-          gruppe    in der Regel ebenfalls acyliert wird:  Die erfindungsgemäss erhältlichen Verbindungen der For  mel I sind stark anabol wirksame Substanzen, die sich insbe  sondere auch durch eine hohe Dissoziation der gewünschten  anabolen Hauptwirkung zur unerwünschten androgenen  Nebenwirkung auszeichnen, wie die nachfolgende Tabelle  am Beispiel der neuen Verbindung     VII    im Vergleich zu den  bekannten Verbindungen I bis     III    zeigt.

   Die aufgeführten  Vergleichsversuche wurden im üblichen Samenblasen- und       Levator-ani-Test    nach     subcutaner    Applikation des Wirkstof  fes an der Ratte ermittelt.      Im     medizinischen    Gebrauch können die erfindungsgemäss  hergestellten Verbindungen als oral applizierbare Arznei  mittel oder als Spritzpräparate angewandt werden.  



  Zur Herstellung oral anwendbarer Arzneimittel werden  die neuen Wirkstoffe in der Regel mit den in der galenischen  Pharmazie üblichen Trägersubstanzen und     Geschmackskorre-          gentien    verarbeitet und dann in die letztlich gewünschte  Form von pharmazeutischen Präparaten gebracht.  



  Die Herstellung der Spritzpräparate erfolgt gewöhnlich  durch Lösen des     Wirkstoffes    in vorzugsweise Ölen, wie insbe  sondere Sesamöl oder Rizinusöl, nach den in der galenischen  Pharmazie üblichen Methoden. Gewünschtenfalls können zur       Steigerung    der Löslichkeit den Lösungsmitteln noch Ver  dünnungsmittel bzw. Lösungsvermittler, wie z. B.     Benzylben-          zoat,    zugesetzt werden.    Beispiel  3,5 g 17ss-Acetoxy-18-methyl-5&alpha;-androst-1-en-3-on  werden in 60 ml Methanol gelöst und unter Eiskühlung mit    1 ml 10%iger wässriger Natronlauge und 4 ml 30%iger Wasser-    stoffperoxidlösung versetzt.

   Nach 10 Minuten bei 0  C fällt  man das Reaktionsprodukt in Eiswasser, filtriert den ent  standenen Niederschlag ab, wäscht diesen mit Wasser und  trocknet ihn im Vakuum bei 50  C. Nach Kristallisation aus  Diisopropyläther erhält man 3,3 g     17ss-Acetoxy-l&alpha;,2&alpha;-          epoxy-18-methyl-5&alpha;-androstan-3-on,    F. 157-158'C.  



  In 50 ml flüssigem Ammoniak werden 45 mg Lithium ge  löst. Zu dieser Lösung lässt man 200 mg     17ss-Acetoxy-l&alpha;,2&alpha;-          epoxy-18-methyl-5&alpha;-androstan-3-on    in 5 ml Tetrahydrofuran  tropfen. Nach 30 Minuten bei -70 C wird bis zur     Entfär-          bung    der Lösung langsam festes Ammoniumchlorid zugege  ben. Danach lässt man das Ammoniak verdampfen, nimmt  die Substanz in Äther auf und wäscht die organische Phase  mit Wasser und trocknet sie über Natriumsulfat. Nach Ver  dampfen des Lösungsmittels und Umkristallisation des Rück  standes aus Hexan/Aceton erhält man 50 mg     1&alpha;,17ss-Di-          hydroxy-18-methyl-5&alpha;-androstan-3-on,    F. 205-209 C.



  The invention relates to a process for the preparation of novel 18-methyl-5α-H-androstane derivatives of the formula
EMI0001.0001
    wherein R is a hydrogen atom or an acyl radical. The acyl radical R is to be understood as meaning in particular those acids which are known to be used in steroid chemistry for the esterification of free hydroxyl groups. The radicals of aliphatic carboxylic acids with in particular 1 to 11 carbon atoms in the acid radical, such as, for example, acetic acid, propionic acid, caproic acid, undecylic acid, and the like are particularly suitable. Ä.

   Of course, these acids can also be unsaturated, branched, polybasic or substituted in the usual way; Examples include trimethyl acetic acid, tert-butyl acetic acid, phenyl acetic acid, cyclopentyl propionic acid, haloacetic acid, amino acetic acid, oxypropionic acid, benzoic acid, succinic acid, adipic acid and the like. a.



  The process according to the invention is characterized in that the A1 double bond of compounds of the formula
EMI0001.0004
  
EMI0001.0005
  
    table
<tb> No. <SEP> substance <SEP> dose <SEP> organ weight <SEP> (mg / kg / body weight)
<tb> mg / animal / day <SEP> Levator <SEP> ani <SEP> seminal vesicle
<tb> I <SEP> 17ss-propionyloxy-4 androsten-3-one <SEP> 1.0 <SEP> 55 <SEP> 529
<tb> II <SEP> 17ss-Acetoxy-5α-androstane 3-one <SEP> 1.0 <SEP> 51 <SEP> 401
<tb> III <SEP> 17ss-acetoxy-1-methyl-5? androst-1-en-3-on <SEP> 1,0 <SEP> 51 <SEP> 371
<tb> VII <SEP> 1α-hydroxy-17ss-acetoxy 18-methyl-5α-androstan-3-one <SEP> 1.0 <SEP> 52 <SEP> 248 epoxidized, whereby compounds of the formula
EMI0001.0006
    arise, and then reductively splits the 1,2-epoxy ring.



  The starting compounds of the formula II can be prepared according to Swiss Patent No. 528,492. These compounds are highly anabolic substances.



  Depending on the meaning of R, a free 17-hydroxyl group can be acylated or a 17-acyloxy group can be saponified. You can z. B. proceed in such a way that after epoxidation of the A1 double bond, the 1,2-epoxy ring, optionally after intermediate protection of the 3-keto group with z. B. complex metal hydrides, such as lithium aluminum hydride, splits reductively. To avoid the intermediate 3-ketone protection, reduction with lithium in liquid ammonia is preferred.

   In this context it should be pointed out that in the subsequent esterification of the 17-hydroxyl group, the 1α-hydroxyl group is usually also acylated: The compounds of the formula I obtainable according to the invention are strongly anabolic substances which, in particular, are also characterized by a high dissociation of the desired anabolic main effect to the undesired androgenic side effect, as the following table shows using the example of the new compound VII in comparison with the known compounds I to III.

   The comparative experiments listed were determined in the usual seminal vesicle and levator ani test after subcutaneous application of the active substance to the rat. In medical use, the compounds prepared according to the invention can be used as orally administrable medicaments or as injection preparations.



  For the production of orally applicable drugs, the new active ingredients are usually processed with the carrier substances and flavoring agents customary in galenic pharmacy and then converted into the form of pharmaceutical preparations that is ultimately desired.



  The spray preparations are usually produced by dissolving the active ingredient in preferably oils, such as in particular special sesame oil or castor oil, according to the methods customary in pharmaceutical pharmacy. If desired, to increase the solubility, the solvents can also diluents or solubilizers, such as. B. benzyl benzoate can be added. Example 3.5 g of 17ss-acetoxy-18-methyl-5α-androst-1-en-3-one are dissolved in 60 ml of methanol and treated with 1 ml of 10% strength aqueous sodium hydroxide solution and 4 ml of 30% strength water while cooling with ice. peroxide solution added.

   After 10 minutes at 0 ° C., the reaction product is poured into ice water, the resulting precipitate is filtered off, washed with water and dried in vacuo at 50 ° C. After crystallization from diisopropyl ether, 3.3 g of 17ss-acetoxy-1α are obtained. 2α-epoxy-18-methyl-5α-androstan-3-one, m.p. 157-158'C.



  45 mg of lithium are dissolved in 50 ml of liquid ammonia. To this solution, 200 mg of 17ss-acetoxy-1α, 2α-epoxy-18-methyl-5α-androstan-3-one in 5 ml of tetrahydrofuran is added dropwise. After 30 minutes at -70 C, solid ammonium chloride is slowly added until the solution is discolored. The ammonia is then allowed to evaporate, the substance is taken up in ether and the organic phase is washed with water and dried over sodium sulfate. After evaporation of the solvent and recrystallization of the residue from hexane / acetone, 50 mg of 1α, 17ss-di-hydroxy-18-methyl-5α-androstan-3-one, mp 205-209 C.

 

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung neuer 18-Methyl-5&alpha;-H- androstanderivate der Formel EMI0002.0017 worin R ein Wasserstoffatom oder einen Acylrest bedeutet, dadurch gekennzeichnet, dass man die d '-Doppelbindung von Verbindungen der Formel EMI0002.0018 epoxydiert, wobei Verbindungen der Formel EMI0002.0019 entstehen, und anschliessend den 1,2-Epoxydring reduktiv aufspaltet. UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch, dadurch gekennzeich net, dass man erhaltene Verbindungen mit freien la- und/ oder 17-Hydroxygruppen verestert. 2. Claim a process for the preparation of novel 18-methyl-5α-androstane derivatives of the formula EMI0002.0017 wherein R denotes a hydrogen atom or an acyl radical, characterized in that the d 'double bond of compounds of the formula EMI0002.0018 epoxidized, with compounds of the formula EMI0002.0019 arise, and then reductively splits the 1,2-epoxy ring. SUBClaims 1. Process according to patent claim, characterized in that the compounds obtained are esterified with free la- and / or 17-hydroxyl groups. 2. Verfahren nach Patentanspruch, dadurch gekennzeich net, dass man erhaltene Verbindungen mit einer 17-Acyl- oxygruppe verseift. 3. Verfahren nach Patentanspruch, dadurch gekennzeich net, dass man 1&alpha;-Hydroxy-17ss-acetoxy-18-methyl-5&alpha;- androstan-3-on herstellt. 4. Verfahren nach Patentanspruch, dadurch gekennzeich net, dass man 1&alpha;,17ss-Dihydroxy-18-methyl-5&alpha;-androstan- 3-on herstellt. 5. Process according to patent claim, characterized in that the compounds obtained with a 17-acyl oxy group are saponified. Process according to claim, characterized in that 1α-hydroxy-17ss-acetoxy-18-methyl-5α-androstan-3-one is prepared. Process according to claim, characterized in that 1α, 17ss-dihydroxy-18-methyl-5α-androstan-3-one is prepared. 5. Verfahren nach Patentanspruch, dadurch gekennzeich net, dass man die reduktive Aufspaltung des 1,2-Epoxydrin- ges in flüssigem Ammoniak mit Lithium durchführt. Process according to claim, characterized in that the reductive splitting of the 1,2-epoxydrin is carried out in liquid ammonia with lithium.
CH1036772A 1968-02-24 1969-02-07 18-methyl-5alpha-h-androstanes anabolic agents CH535754A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19681668687 DE1668687C3 (en) 1968-02-24 1968-02-24 New 1 8-Methyt-Salpha-H-androstane, process for their production and medicinal products containing them
CH193569A CH528492A (en) 1968-02-24 1969-02-07 Process for the production of new 18-methyl-5a-H-androstane

Publications (1)

Publication Number Publication Date
CH535754A true CH535754A (en) 1973-04-15

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CH1036772A CH535754A (en) 1968-02-24 1969-02-07 18-methyl-5alpha-h-androstanes anabolic agents
CH1036672A CH536297A (en) 1968-02-24 1969-02-07 Process for the production of new 18-methyl-5a-H-androstane

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH1036672A CH536297A (en) 1968-02-24 1969-02-07 Process for the production of new 18-methyl-5a-H-androstane

Country Status (1)

Country Link
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Also Published As

Publication number Publication date
CH536297A (en) 1973-04-30

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