DE1186854B - Process for the preparation of 6-fluoro-1,2alpha-methylene-delta-17alpha-hydroxyprogestn - Google Patents

Process for the preparation of 6-fluoro-1,2alpha-methylene-delta-17alpha-hydroxyprogestn

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Publication number
DE1186854B
DE1186854B DESCH33408A DESC033408A DE1186854B DE 1186854 B DE1186854 B DE 1186854B DE SCH33408 A DESCH33408 A DE SCH33408A DE SC033408 A DESC033408 A DE SC033408A DE 1186854 B DE1186854 B DE 1186854B
Authority
DE
Germany
Prior art keywords
fluoro
methylene
hydroxyprogesterone
preparation
hydroxyprogestn
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DESCH33408A
Other languages
German (de)
Other versions
DE1873928U (en
Inventor
Dr Rudolf Wiechert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Pharma AG
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
Application filed by Schering AG filed Critical Schering AG
Priority to DESCH33408A priority Critical patent/DE1186854B/en
Priority to NL6404661A priority patent/NL6404661A/xx
Priority to CH744964A priority patent/CH451132A/en
Priority to FR977965A priority patent/FR1403954A/en
Publication of DE1186854B publication Critical patent/DE1186854B/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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 6-Fluor-1,2 a-methylen-de-17 a-hydroxyprogesteronestern Die Erfindung betrifft die Einführung eines 6-ständigen Fluoratoms in 1,2 x-Methylen-de-17 a-hydroxyprogesteronester. Das erfindungsgemäße Verfahren besteht darin, daß man in an sich bekannter Weise einen 1,2 a-Methylen-6 a,7 a-oxido-17 a-hydroxyprogesteronester (hergestellt aus der entsprechenden de-Verbindung durch Epoxydation mit einer Percarbonsäure gemäß Patent 1158 966) mit Fluorwasserstoffsäure, vorzugsweise in Dimethylformamidlösung, umsetzt, die erhaltene 6 ß-Fluor-7 a-hydroxyverbindung mit Chlorwasserstoffsäure, vorzugsweise in Eisessiglösung, behandelt und den erhaltenen 1-Chlormethyl-6-fluor-A6-17 a-hydroxyprogesteronester mit einer vorzugsweise organischen Base, insbesondere Collidin, umsetzt.Process for the preparation of 6-fluoro-1,2a-methylene-de-17a-hydroxyprogesterone esters The invention relates to the introduction of a 6-position fluorine atom in 1,2 x-methylene-de-17 α-hydroxyprogesterone ester. The inventive method consists in that one in a manner known per se a 1,2 a-methylene-6 a, 7 a-oxido-17 a-hydroxyprogesterone ester (made from the corresponding de-compound by epoxidation with a percarboxylic acid according to patent 1158 966) with hydrofluoric acid, preferably in dimethylformamide solution, converts the 6 ß-fluoro-7 a-hydroxy compound obtained with hydrochloric acid, preferably in glacial acetic acid solution, and the 1-chloromethyl-6-fluoro-A6-17 obtained α-hydroxyprogesterone ester with a preferably organic base, in particular Collidine.

Die Verfahrensprodukte, insbesondere das 17-Acetat, sind vor allem bei oraler Applikation überraschend stark wirksame Gestagene. Die folgende Gegenüberstellung der zur Erzielung eines positiven Clauberg-Tests an infantilen Kaninchen gerade ausreichenden Mindestmenge zeigt deutlich die überlegene Wirksamkeit des 6-Fluor-1,2 a-methylende-17 a-hydroxyprogesteronacetats gegenüber den als stark wirksam bekannten Gestagenen: Erforderliche Dosis Verbindung Milligramm bei oraler Applikation 6-Fluor-1,2 a-methylen-d1)- 17 a-hydroxyprogesteronacetat 0,01 19-Nor-17 ca-hydroxyprogesteron- acetat ...................... 0,1 17a-Hydroxyprogesteronacetat .. 0,9 19-Nor-17 a-äthinyltestosteron ... 0,1 19-Nor-17 «-äthinyltestosteron- acetat ...................... 0,03 Die weiteren Ester des 6-Fluor-1,2 a-methylende-17 ca-hydroxyprogesterons zeigen ähnliche Wirkungssteigerungen gegenüber den entsprechenden Vergleichssubstanzen. Bei den höheren Homologen, angefangen etwa vom Önanthat, zeigt sich außerdem eine wertvolle Protraktion der Wirksamkeit. An Stelle von Estern der aliphatischen Carbonsäuren können auch die bei der therapeutischen Verwendung von Steroiden gebräuchlichen Ester anderer Carbonsäuren, z. B. der alicyclischen, aromatischen oder gemischt offenkettig-cyclischen Carbonsäuren, in analoger Weise hergestellt werden. Sie zeigen gleichartige ähnlich hohe Wirksamkeiten. Beispiel 2,14g 1,2a-Methylen-6,7a-oxido-d4-pregnen-17 a-ol-3,20=dion-17-acetat werden 5 Stunden bei Raumtemperatur mit einer Lösung von 10,7m1 Fluorwasserstoffsäure und 10,7 ml Dimethylformamid gerührt. Es wird dann in wäßrige Kaliumhydrogencarbonatlösung eingerührt, mit Methylenchlorid extrahiert und die organische Phase nach Neutralwaschen und Trocknen über Natriumsulfat zur Trockne eingeengt. Der Rückstand, bestehend aus 6ß-Fluor-1,2a-methylen-d4-pregnen-7a, «-diol-3,20-dion-17-acetat, wird in 50 ml Eisessig gelöst, mit trockenem Salzsäuregas gesättigt und 20 Stunden bei Raumtemperatur aufbewahrt. Dann wird in eine gesättigte, wäßrige Natriumchloridlösung eingegossen, das ausgefallene Produkt abgesaugt, in Methylenchlorid aufgenommen, mit Natriumhydrogencarbonatlösung und mit Wasser neutral gewaschen. Es wird nun nach Trocknung über Natriumsulfat zur Trockne eingedampft. Das so erhaltene rohe 6-Fluor-1 a-chlor-methyl-d4,s-pregnadien-17 a-ol-3,30-dion-17-acetat wird dann in 20 ml Collidin 20 Minuten unter Stickstoff zum Sieden erhitzt. Nach dem Verdünnen mit Äther wird mit 4 n-Chlorwasserstoffsäure und mit Wasser neutral gewaschen. Die Ätherlösung wird über Natriumsulfat getrocknet und nach Filtration bis zur Trockne eingeengt. Nach Chromatographie des so erhaltenen Rohproduktes an Silicagel mit Benzol und Umkristallisation aus Essigester erhält man 510 mg 6-Fluor-1,2 «-methylen-d4,B -pregnadien-17 a-ol-3,20-dion-17-acetat vom Schmelzpunkt F.=267,5 bis 268,5° C; E281)=17 600.The products of the process, in particular 17-acetate, are surprisingly highly effective gestagens, especially when administered orally. The following comparison of the minimum amount just sufficient to achieve a positive Clauberg test in infantile rabbits clearly shows the superior effectiveness of 6-fluoro-1,2α-methylende-17α-hydroxyprogesterone acetate compared to the progestogens known to be highly effective: Required dose Compound milligrams with oral application 6-fluoro-1,2-a-methylene-d1) - 17 α-hydroxyprogesterone acetate 0.01 19-nor-17 ca-hydroxyprogesterone- acetate ...................... 0.1 17a-hydroxyprogesterone acetate. 0.9 19-nor-17 a-ethinyltestosterone ... 0.1 19-nor-17 "-ethinyltestosterone- acetate ...................... 0.03 The other esters of 6-fluoro-1,2 a-methylende-17 ca-hydroxyprogesterone show similar increases in activity compared to the corresponding comparison substances. In the case of the higher homologues, beginning for example with enanthate, there is also a valuable reduction in effectiveness. Instead of esters of aliphatic carboxylic acids, the esters of other carboxylic acids commonly used in the therapeutic use of steroids, e.g. B. the alicyclic, aromatic or mixed open-chain cyclic carboxylic acids, are prepared in an analogous manner. They show similar, similarly high efficacies. Example 2.14g of 1,2a-methylene-6,7a-oxido-d4-pregnen-17a-ol-3,20 = dione-17-acetate are treated for 5 hours at room temperature with a solution of 10.7 ml of hydrofluoric acid and 10, 7 ml of dimethylformamide were stirred. It is then stirred into aqueous potassium hydrogen carbonate solution, extracted with methylene chloride and, after washing until neutral and drying over sodium sulfate, the organic phase is concentrated to dryness. The residue, consisting of 6ß-fluoro-1,2a-methylene-d4-pregnen-7a, «-diol-3,20-dione-17-acetate, is dissolved in 50 ml of glacial acetic acid, saturated with dry hydrochloric acid gas and 20 hours at Stored at room temperature. It is then poured into a saturated aqueous sodium chloride solution, the precipitated product is filtered off with suction, taken up in methylene chloride, washed neutral with sodium hydrogen carbonate solution and with water. After drying over sodium sulfate, it is then evaporated to dryness. The crude 6-fluoro-1α-chloro-methyl-d4, s-pregnadien-17α-ol-3,30-dione-17-acetate obtained in this way is then heated to boiling in 20 ml of collidine for 20 minutes under nitrogen. After dilution with ether, it is washed neutral with 4N hydrochloric acid and with water. The ether solution is dried over sodium sulfate and, after filtration, concentrated to dryness. After chromatography of the crude product thus obtained on silica gel with benzene and recrystallization from ethyl acetate, 510 mg of 6-fluoro-1,2'-methylene-d4, B -pregnadien-17 a-ol-3,20-dione-17-acetate vom Melting point m.p. = 267.5 to 268.5 ° C; E281) = 17 600.

Claims (1)

Patentanspruch: Verfahren zur- Herstellung von 6-Fluor-1,2 amethylen-de-17 a-hydroxyprogesteronestern, d a -durch gekennzeichnet, daß man in an sich bekannter Weise einen aus der entsprechenden de-Verbindung durch Epoxydation mit einer Percarbonsäure erhältlichen 1,2 a-Methylen-6 a, 7a-oaido-17a-hydroayprogesteronester mit Fluorwasserstoffsäure, vorzugsweise in Dimethyiformamidlösung, umsetzt; die erhaltene 6ß-Fluor-7 a-hydroxyverbindung mit Chlorwasserstoffsäure, vorzugsweise in Eisessiglösung, behandelt und den erhaltenen 1-Chlormethyl-6-fluor-ds-17 a-hydroxyprogesteronester mit einer vorzugsweise organischen Base, insbesondere Collidin, umsetzt.Claim: Process for the production of 6-fluoro-1,2-amethylene-de-17 a-hydroxyprogesterone esters, d a -characterized in that one is known per se Way one out of the corresponding de-compound by epoxidation with a percarboxylic acid available 1,2 a-methylene-6 a, 7a-oaido-17a-hydroayprogesteronester with hydrofluoric acid, preferably in dimethylformamide solution; the obtained 6β-fluoro-7α-hydroxy compound with hydrochloric acid, preferably in glacial acetic acid solution, treated and the obtained 1-chloromethyl-6-fluoro-ds-17 a-hydroxyprogesterone ester with a preferably organic Base, in particular collidine, converts.
DESCH33408A 1963-06-14 1963-06-14 Process for the preparation of 6-fluoro-1,2alpha-methylene-delta-17alpha-hydroxyprogestn Pending DE1186854B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DESCH33408A DE1186854B (en) 1963-06-14 1963-06-14 Process for the preparation of 6-fluoro-1,2alpha-methylene-delta-17alpha-hydroxyprogestn
NL6404661A NL6404661A (en) 1963-06-14 1964-04-28
CH744964A CH451132A (en) 1963-06-14 1964-06-08 Process for the preparation of 6-fluoro-1,2a-methylene-6-17a-hydroxy-progesterone esters
FR977965A FR1403954A (en) 1963-06-14 1964-06-11 Esters of progesterone derivatives and their preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH33408A DE1186854B (en) 1963-06-14 1963-06-14 Process for the preparation of 6-fluoro-1,2alpha-methylene-delta-17alpha-hydroxyprogestn

Publications (1)

Publication Number Publication Date
DE1186854B true DE1186854B (en) 1965-02-11

Family

ID=7432773

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH33408A Pending DE1186854B (en) 1963-06-14 1963-06-14 Process for the preparation of 6-fluoro-1,2alpha-methylene-delta-17alpha-hydroxyprogestn

Country Status (3)

Country Link
CH (1) CH451132A (en)
DE (1) DE1186854B (en)
NL (1) NL6404661A (en)

Also Published As

Publication number Publication date
CH451132A (en) 1968-05-15
NL6404661A (en) 1964-12-15

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