CH326364A - Process for making new esters of steroid series alcohols - Google Patents

Process for making new esters of steroid series alcohols

Info

Publication number
CH326364A
CH326364A CH326364DA CH326364A CH 326364 A CH326364 A CH 326364A CH 326364D A CH326364D A CH 326364DA CH 326364 A CH326364 A CH 326364A
Authority
CH
Switzerland
Prior art keywords
testosterone
found
alcohols
esters
steroid series
Prior art date
Application number
Other languages
German (de)
Inventor
Stoeck Georg Dr Dipl-Chem
Voigt Hans Dr Dipl-Chem
Haack Erich Dr Dipl-Chem
Original Assignee
Boehringer & Soehne Gmbh
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 Boehringer & Soehne Gmbh filed Critical Boehringer & Soehne Gmbh
Publication of CH326364A publication Critical patent/CH326364A/en

Links

Classifications

    • 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07JSTEROIDS
    • C07J75/00Processes for the preparation of steroids in general

Description

  

  



  Verfahren zur Herstellung neuer Ester von Alkoholen der   Steroidreihe   
Bekanntlieh ist mit der Einführung von Säureresten in Alkohole bzw.   Ketoalkohole    der   Steroidreihe    im allgemeinen eine mehr    oeler weniger grosse Wirksa. mlreitssteigerung    verbunden So ist zum Beispiel das Testoste  ronpropionat      erheblieh    wirksamer als das    Testosteron selbst.

   Man hat deswegen bis heute immer wieder versucht, durch die Herstel-    lung neua. rtiger Ester eine Verbesserung der    phvsiologisehen und physikalischen Eigen-    schaft der betreffenden Hormone herbei   zuführen, insbesondere hinsichtlich ihrer Los-    liehkeit in Injektionsflüssigkeiten und einer Erhöhung ihrer Wirksamkeit bzw.   Verlänge-    rung der Wirkungsdauer. In neuester Zeit haben solche Ester erheblich an Interesse gewonnen, welche wegen ihres niedrigen    Schmelzpunktes in flüssiger Form ohne wei-    tere Verd nnung appliziert werden können und somit die Anlage grösserer Depots gestatten.



   Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung einer neuen   grippe    von Estern von Alkoholen, zum Bei  spiel von Ketoalkoholen,    der Steroidreihe. Das erfindungsgemässe Verfahren ist dadurch gekennzeiehnet, dass Alkohole der   Steroidreihe,    wie zum Beispiel Testosteron, Methylandro  stena, iol, Desoxycorticosteron, Oestradiol,    mit   p-Ketosäuren    verestert werden. Die neuen Ester zeichnen sich-wie gefunden wurdegegenüber den bislang dargestellten Estern durch   versehiedene    Vorteile aus. Bei teilweise iiberraschend hoher Wirksamkeit gestatten gerade sie auf Grund ihrer   physikali-      schen    Eigenschaften eine parenterale Anwendung ohne Losungsmittel.

   Sie stellen (offenbar wegen Keto-Enol-Tautomerie) durchweg ölige Substanzen dar,   welche-als solche    appliziert - gut verträglich sind, aber auch in Losung in den in der Hormontherapie übliehen   Losimgsmitteln,    mit denen sie unbegrenzt   misehbar    sind, ihre guten   Eigenschaf-    ten voll entfalten.



   Die Veresterung kann nach an sich bekannten Methoden durchgeführt werden. Be  vorzugt    ist die Methode der Umsteuerung, welehe beka. nntlich darin besteht, dass man die Ester von niedrigmolekularen Alkoholen, vorzugsweise   Methyl-und      Äthylester,    einsetzt und so lange erhitzt, bis der bei der Reaktion freiwerdende Alkohol restlos abdestilliert ist.



   Beispiel
Ein Gemisch von 1 g trockenem Testosteron und   60    cm3 Caprinoylessigester wird im Olbad von   10 (}   unter vermindertem Druek    erhitzt. Im Zuge der Umesterung geht das   Testosteron    in etwa 30 Minuten in   Losung,    wobei gleichzeitig das Abdestillieren des   Äthylalkohols vonstatten    geht. Die Reaktion ist naeh etwa 3 Stunden beendet.   Anschlie-      ssend    d wird im Hochvakuum (bei etwa 10-3 mm Hg) der überschüssige Caprinoylessigester abdestilliert. Es hinterbleiben 1, 75 g eines schwach gelbgefÏrbten Íls. Diese Substanz kann für pharmazeutische Zwecke direkt benutzt werden.



   Zur weiteren Reinigung wird in Äther aufgenommen und die   Losung    zunäehst mit viel Wasser und dann mit 5prozentigem Alkohol gewaschen. Nach der Reinigung über Aktivkohle erhält man 1, 55 g Testosteron  caprinoyiacetat.   



   C31H48O4 ber. C 76, 81 H 9,   98 1/9    gef. C   716,    60 H 9, 97%
In analoger Weise lassen sich auch die folgenden Ester herstellen :
Testosteron-oenanthoyl-acetat
C. ber. C 75,   97    H 9,56% gef. C 76, 01 H 9,   50 ouzo   
Testosteron-hexahydrobenzoyl-acetat
C28H40O4 ber. C   76,    32 H 9, 15% gef. C 76, 62 H 9, 09     /n   
Testosteron-n-hexyl-acetyl-acetat    C29H4404 ber.    C   76, 27    H 9, 71% gef. C   76,      32      H    9, 69%
Testosteron-n-dodecylacetyl-acetat    C35H5604    ber. C   77,    72 H   10,    44% gef.

   C 77, 41   H      1-0,    50%
17-Methyl-androsten-5-diol-3¯,17¯ di-(oenanthoyl-acetat)
C38H60O6 ber. C 74,47 H 9,87% gef. C   74,    78 H 9, 99%
Testosteron-laurinoyl-acetat    C33H52O4 ber. C 77, 29 H 10, 22"/o    gef. C 77,06 H 10,18%    7'ests.,    osteron-palmitinoyl-acetat
C37H60O4 ber. C 78, 11 H   10, 63"/o    gef. C 77,88 H 10,51%
Testosteron-pelargonoyl-acetat
C30H46O4 ber. C 76,55 H 9,85% gef. C 76 40 H 9, 92%
Desoxycorticasteron-oenanthoyl-acetat
C30H44O5   heur.    C   74,    34 H 9,   1'5"/.    gef. C 75,57 H 9,03%
Testosteron-undecylenoyl-acetat    C32H4804    ber. C   77,    38 H 9,   7, 4 I/o    gef.

   C 77,15 H 9,62%
Oestradiol-butyryl-acetat
C28H42O4 ber. C 75,97 H 9, 56% gef.   C    75,75 H 9,30%    PATENTANSPR. UCH   
Verfahren zur Herstellung neuer Ester, dadurch gekennzeichnet, da¯ man Alkohole der   Steroidreihe      mit/3-K¯tosäuren verestert.  



  



  Process for making new esters of steroid series alcohols
It is well known that the introduction of acid residues into alcohols or keto alcohols of the steroid series is generally more oil-less effective. For example, testosterone propionate is considerably more effective than testosterone itself.

   For this reason, attempts have been made again and again to this day to create new a. Real esters bring about an improvement in the physiological and physical properties of the hormones in question, in particular with regard to their solubility in injection liquids and an increase in their effectiveness or lengthening of the duration of action. Recently, there has been a considerable increase in interest in esters which, because of their low melting point, can be applied in liquid form without further dilution and thus allow larger depots to be set up.



   The subject of the present patent is a process for the preparation of a new flu esters of alcohols, for example of keto alcohols, the steroid series. The method according to the invention is characterized in that alcohols of the steroid series, such as testosterone, Methylandro stena, iol, deoxycorticosterone, estradiol, are esterified with p-keto acids. As has been found, the new esters are distinguished by various advantages over the esters presented so far. With their sometimes surprisingly high efficacy, precisely because of their physical properties they allow parenteral use without solvents.

   They consist (apparently because of keto-enol tautomerism) consistently oily substances which - applied as such - are well tolerated, but also have their good properties in solution in the solvents used in hormone therapy, with which they can be measured indefinitely fully unfold.



   The esterification can be carried out by methods known per se. The method of reversing is preferred, which is known. Specifically, the esters of low molecular weight alcohols, preferably methyl and ethyl esters, are used and heated until the alcohol liberated in the reaction is completely distilled off.



   example
A mixture of 1 g of dry testosterone and 60 cm3 of caprinoyl acetic ester is heated in an oil bath of 10 (} under reduced pressure. In the course of the transesterification, the testosterone dissolves in about 30 minutes, with the ethyl alcohol being distilled off at the same time. The reaction is close After about 3 hours, the excess caprinoyl acetic ester is distilled off in a high vacuum (at about 10-3 mm Hg), leaving 1.75 g of a pale yellow oil. This substance can be used directly for pharmaceutical purposes.



   For further purification, it is taken up in ether and the solution is first washed with plenty of water and then with 5 percent alcohol. After cleaning over activated charcoal, 1.55 g of testosterone caprinoyiacetate are obtained.



   C31H48O4 calcd. C 76, 81 H 9, 98 1/9 found. C 716,60 H 9,97%
The following esters can also be prepared in an analogous manner:
Testosterone Oenantholy Acetate
C. calc. C 75.97, H 9.56% found. C 76.01 H 9.50 ouzo
Testosterone hexahydrobenzoyl acetate
C28H40O4 calcd. C 76, 32 H 9, 15% found. C 76.62 H 9.09 / n
Testosterone-n-hexyl-acetyl-acetate C29H4404 calc. C 76, 27 H 9, 71% found. C 76.32 H 9.69%
Testosterone n-dodecylacetyl acetate C35H5604 calc. C 77, 72 H 10, 44% found.

   C 77.41 H 1-0.50%
17-methyl-androstene-5-diol-3¯, 17¯ di- (oenantholy acetate)
C38H60O6 calcd. C 74.47 H 9.87% found. C 74.78 H 9.99%
Testosterone laurinoyl acetate C33H52O4 ber. C 77, 29 H 10, 22 "/ o found. C 77.06 H 10.18% 7'ests., Osterone palmitinoyl acetate
C37H60O4 calcd. C 78.11 H 10.63 "/ o found. C 77.88 H 10.51%
Testosterone Pelargonoyl Acetate
C30H46O4 calcd. C 76.55 H 9.85% found. C 76 40 H 9.92%
Deoxycorticasterone enanthoxy acetate
C30H44O5 today. C 74.34 H 9.1'5 "/. Found C 75.57 H 9.03%
Testosterone undecylenoyl acetate C32H4804 calc. C 77, 38 H 9, 7, 4 I / o found.

   C 77.15 H 9.62%
Estradiol butyryl acetate
C28H42O4 calcd. C 75.97 H 9, 56% found. C 75.75 H 9.30% PATENT APPLICATION UCH
Process for the production of new esters, characterized in that alcohols of the steroid series are esterified with / 3-k¯toic acids.

 

Claims (1)

UNTERANSPBÜCHE I.. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass man Ketoalkohole der Steroidreihe verestert. SUB-CLAIMS I .. Method according to claim, characterized in that keto alcohols of the steroid series are esterified. 2.. Verfahren nach Patentanspruch, da dureh gekennzeiehnet, dass man die Veresterung als Umesterung durchf hrt. 2 .. Process according to patent claim, as marked by the fact that the esterification is carried out as a transesterification.
CH326364D 1953-05-09 1954-04-24 Process for making new esters of steroid series alcohols CH326364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE326364X 1953-05-09

Publications (1)

Publication Number Publication Date
CH326364A true CH326364A (en) 1957-12-15

Family

ID=6183846

Family Applications (1)

Application Number Title Priority Date Filing Date
CH326364D CH326364A (en) 1953-05-09 1954-04-24 Process for making new esters of steroid series alcohols

Country Status (1)

Country Link
CH (1) CH326364A (en)

Similar Documents

Publication Publication Date Title
CH326364A (en) Process for making new esters of steroid series alcohols
DE975951C (en) Process for the production of new, depot-effective steroid hormone esters of oily consistency suitable for injection purposes
DE940402C (en) Process for the preparation of a 4-pregnen-17ª ‡, 21-diol-3, 11, 20-trione ester or its solutions or suspensions
DE1961433B2 (en) 8 alkoxy 4 hydroxy 3 methyl 10 methylene 2,9 dioxatncyclo (4,3,1,0 high 3, high 7) decane and 8 alkoxy 4 hydroxy 3,10 dimethyl 2,9 dioxatncyclo (4,3,1,0 high 3 , to the power of 7) decane, as well as processes for their preparation
CH660304A5 (en) ANTIMYCOTIC AGENTS WITH HIGH ACTIVE SUBSTANCE RELEASE CONTAINING BIFONAZOLE IN THE FORM OF SOLUTION AND SPRAY.
DE966343C (en) Process for the preparation of solutions of natural or synthetic fat-soluble steroids
DE855712C (en) Process for the preparation of new 6,9-dioxy-2-aminopteridine derivatives substituted in the 8-position
DE673535C (en) Process for the stabilization of cellulose esters of organic acids
DE2607849A1 (en) Glycol-based excipients for pharmaceutical compsns. and cosmetics - prepd. from glycols and fatty acids or fatty acid esters
AT201784B (en) Process for the preparation of a compound of the cyclopentanopolyhydrophenanthrene series
DE973365C (en) Process for the production of cortisone and hydrocortisone
DE275932C (en)
DE740148C (en) Process for promoting the early growth of plants
DE1025892B (en) Process for the preparation of basic esters of ª ‡ -tocopherol or their salts
DE711243C (en) Process for the preparation of esters of tocopherols
DE416982C (en) Method of killing bed bugs
DE561314C (en) Process for the production of easily soluble salts of high molecular weight iodized fatty acids
AT71382B (en) Process for the preparation of nitrogenous compounds from ovaries, corpus luteum or placenta.
DE928712C (en) Process for the preparation of new esters or new ethers of 2-mercaptobenzimidazole mono- or dialkylenes
DE1101415B (en) Process for the preparation of 6ª ‡ -Methyl-17ª ‡ -acetoxy-4-pregnen-3, 20-dione
AT253698B (en) Process for making new aminosteroids
DE597640C (en) Process for the production of easily soluble salts of high molecular weight iodized fatty acids
DE890345C (en) Process for the preparation of hydrogenated formylpteroic acids
AT164048B (en) Process for the production of disinfectants
DE600365C (en) Process for the production of an effective preparation from dioxyphenylisatin or its substitution products and derivatives