CH273600A - 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.Info
- Publication number
- CH273600A CH273600A CH273600DA CH273600A CH 273600 A CH273600 A CH 273600A CH 273600D A CH273600D A CH 273600DA CH 273600 A CH273600 A CH 273600A
- Authority
- CH
- Switzerland
- Prior art keywords
- compound
- oxygen
- ring
- preparation
- containing group
- Prior art date
Links
- 150000001875 compounds Chemical class 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 4
- 229910052760 oxygen Inorganic materials 0.000 title claims description 4
- 239000001301 oxygen Substances 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000002253 acid Substances 0.000 claims description 5
- -1 keto halide Chemical class 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 239000007800 oxidant agent Substances 0.000 claims description 3
- AHRWWYGWQKBKBF-ZCFUGHDASA-N (8s,9s,10s,13s,14s,17s)-17-acetyl-10,13-dimethyl-2,4,5,6,7,8,9,12,14,15,16,17-dodecahydro-1h-cyclopenta[a]phenanthrene-3,11-dione Chemical compound C1CC2CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](C(=O)C)[C@@]1(C)CC2=O AHRWWYGWQKBKBF-ZCFUGHDASA-N 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 229930194542 Keto Natural products 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 229960000583 acetic acid Drugs 0.000 description 6
- 239000012362 glacial acetic acid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 4
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 4
- 150000003944 halohydrins Chemical class 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- QDHHCQZDFGDHMP-UHFFFAOYSA-N Chloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- VBTQNRFWXBXZQR-UHFFFAOYSA-N n-bromoacetamide Chemical compound CC(=O)NBr VBTQNRFWXBXZQR-UHFFFAOYSA-N 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- ODIGIKRIUKFKHP-UHFFFAOYSA-N (n-propan-2-yloxycarbonylanilino) acetate Chemical compound CC(C)OC(=O)N(OC(C)=O)C1=CC=CC=C1 ODIGIKRIUKFKHP-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- SOWJCIWZEUNWJP-BFRDCBKMSA-N CC(=O)[C@H]1CC[C@H]2[C@@H]3CCC4CC(=O)CC[C@]4(C)[C@H]3C(=O)C(Br)[C@]12C Chemical compound CC(=O)[C@H]1CC[C@H]2[C@@H]3CCC4CC(=O)CC[C@]4(C)[C@H]3C(=O)C(Br)[C@]12C SOWJCIWZEUNWJP-BFRDCBKMSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000863032 Trieres Species 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 238000006480 benzoylation reaction Methods 0.000 description 1
- HJCMMOODWZOXML-UHFFFAOYSA-N bromo hypobromite Chemical class BrOBr HJCMMOODWZOXML-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J9/00—Normal 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J3/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by one carbon atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J5/00—Normal 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J7/00—Normal steroids containing carbon, hydrogen, halogen or oxygen substituted in position 17 beta by a chain of two carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J75/00—Processes for the preparation of steroids in general
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (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 einer im. Ring C eine sauerstoffhaltige Gruppe enthal tenden Verbindung der Cyclopentanopoly- hydrophenanthren-Reihe gelangen kann, wenn man -111,12-Pregnen-3,20-dion mit unterhalo- geniger Säure behandelt,
auf das entstandene Halogenhydrin unter Bildung eines Ketohalo- genids oxydierende Mittel einwirken lässt und hierauf mit reduzierenden Mitteln aus letz terem das Halogen entfernt.
Den Ausgangsstoff kann man unter an- derein aus einem Acy l at von Pregnan-12-ol- 3,20-dion dureb. thermisehe Spaltung gewin nen.
Die unterhalogenige Säure kann auch z. B. bei Gegenwart der Steroidverbindung aus ihren Salzen, lthern oder Estern oder solchen Stoffen erzeugt werden, die in Gegenwart von Wasser nnterhalogenige Säure abgeben, wie beispielsweise Bromaeetamid oder Chloramin.
Auf das erhaltene Halogenhydrin werden zuerst oxydierende Mittel, z. B. Chromsäure in Eisessig, dann, zweeks Entfernung des Ha logenatoms, reduzierende Mittel, z. B. Zink und Eisessig, einwirken gelassen.
Das heue Verfahrensprodukt., das Pregnan- 3,17,20-trion kristallisiert in zu Drusen ver einigten Nadeln vom Sellmp. 154 bis 156 G. Es soll als Zwischenprodukt für die Herstel- hing therapeutisch wertvoller Verbindungen Verwendung finden. Beispiel: a) 650 mg d ll>12-Pregnen-3,20-dion vom Schmp. 131 bis 133 C (erhältlich z.
B. aus Pregnan-12-ol-3,20-dion vorn Schmp. 182 bis 184 C durch Benzoylierung lind anschliessende Abspaltung von Benzoesäure) werden in 100 ein' Aceton gelöst, mit 0,6g N-Brom- acetamid und 40 cm' Wasser versetzt und 15 Stunden bei 20 C stehengelassen. Die anfangs farblose Lösung färbt sich nach einigen Stunden gelb, ist aber nach 15 Stun den wieder farblos. lach Zusatz von etwas Wasser wird das Aceton im Vakuum entfernt, wobei sieh die Hauptmenge des organischen Materials als harzige Masse an der Kolben wand ansetzt.
Das Wasser wird abgegossen und das Harz noch zweimal mit wenig fri- sehem -Wasser gewaschen. Die abgegossenen Waschwässer werden zweimal mit viel Äther ausgeschüttelt und das Harz für sieh mit wenig abs. Äther versetzt, wobei reichliche Mengen von Kristallen ungelöst bleiben, die abgenutscht, gut mit. Äther gewaschen und im Vakuum getrocknet werden. Es sind meist dreieckige, farblose Plättchen, die bei etwa 238 bis 245 C unter Zersetzung schmelzen.
Sie stellen das Halogenhydrin der Formel
EMI0001.0059
b) 420 mg dieses kristallisierten Halogen- hydrins werden in 25 ein' möglichst alkohol freiem Chloroform aufgeschwemmt, mit 10 cm' reinstem Eisessig und hierauf mit 5 cm3 2 /d iger Chromtrioxyd-Eisessig-Lösung ( =100 Milligramm Cr0g) versetzt und 2 Stunden bei Zimmertemperatur stehengelassen.
Hierauf wird das Chloroform im Vakuum (bei 20 C Badtemperatur) möglichst entfernt, der Rück- stand mit 10 cm" Eisessig und 2,5 cm' 2 % iger Chromsäurelösung versetzt und wieder bei 20 C stehengelassen.
Da nach 3 Stunden keine freie Chromsäure mehr nachweisbar ist, werden erneut 2,5 cm' 2 % ige Lösung zugege- ben und dies so oft wiederholt, bis sich nach dreistündigem Stehen noch deutlich Chromsäure nachweisen lässt. Insgesamt sind 21 cm' der 2o/oigen Lösung (= 420 mg Cr0,) nötig.
Die übliche Aufarbeitung ergibt das 12-Brom- pregnan-3,11,20-trion in farblosen Plättchen vom Schmp. 176 bis 184 C.
c) 240 mg dieses Ketobromids werden in 10 cm' Eisessig gelöst, mit 400 mg Zinkstaub versetzt und unter dauerndem Umschwenken 15 Minuten auf 80 C erwärmt. Durch Fil trieren, Einengen des Filtrates im Vakuum, Versetzen mit Nasser und Ausäthern erhält. man das Pregnan-3,11,20-trion als in Drusen vereinigte Nadeln vom Sehmp. 154 bis 1,56'C.
An Stelle von N-Bromacetamid lä.sst sich beispielsweise auch Chloramin verwenden.
Process for the preparation of a compound of the cyclopentanopolyhydrophenanthrene series which contains an oxygen-containing group in ring C. It was found that one can become an im. Ring C a compound of the cyclopentanopoly- hydrophenanthrene series containing an oxygen-containing group can be obtained if -111,12-pregnene-3,20-dione is treated with hyphal acid
allows oxidizing agents to act on the halohydrin formed to form a ketohalide and then removes the halogen from the latter with reducing agents.
The starting material can be obtained from an acylate of Pregnan-12-ol-3,20-dione, among other things. gain thermal cleavage.
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 which give off interhalogenous acids in the presence of water, such as bromoetamide or chloramine.
On the halohydrin obtained, oxidizing agents, e.g. B. chromic acid in glacial acetic acid, then, two-way removal of the halogen atom, reducing agents, e.g. B. zinc and glacial acetic acid, allowed to act.
The current product of the process. Pregnan-3,17,20-trione crystallizes in needles from Sellmp that are united to form drusen. 154 to 156 G. It is said to be used as an intermediate for the production of therapeutically valuable compounds. Example: a) 650 mg d ll> 12-pregnen-3,20-dione with a melting point of 131 to 133 C (available e.g.
B. from Pregnan-12-ol-3,20-dione from melting point 182 to 184 C by benzoylation and subsequent splitting off of benzoic acid) are dissolved in 100% of an 'acetone, with 0.6 g of N-bromoacetamide and 40 cm' Water was added and the mixture was left to stand at 20 ° C. for 15 hours. The initially colorless solution turns yellow after a few hours, but is colorless again after 15 hours. After adding a little water, the acetone is removed in vacuo, and most of the organic material attaches to the wall of the flask as a resinous mass.
The water is poured off and the resin is washed twice with a little fresh water. The drained washing water is shaken out twice with a lot of ether and the resin with little abs. Ether added, with copious amounts of crystals remaining undissolved, which sucked off, well with. Ether washed and dried in vacuo. They are mostly triangular, colorless platelets that melt at around 238 to 245 C with decomposition.
They represent the halohydrin of the formula
EMI0001.0059
b) 420 mg of this crystallized halohydrin are suspended in chloroform, which is as free of alcohol as possible, with 10 cm of the purest glacial acetic acid and then with 5 cm3 of 2 / d chromium trioxide-glacial acetic acid solution (= 100 milligrams of Cr0g) and 2 hours left to stand at room temperature.
The chloroform is then removed in vacuo (at a bath temperature of 20 ° C.), the residue is mixed with 10 cm "of glacial acetic acid and 2.5 cm of 2% chromic acid solution and left to stand at 20 ° C. again.
Since free chromic acid can no longer be detected after 3 hours, another 2.5 cm 2% solution is added and this is repeated until chromic acid can still be clearly detected after standing for three hours. A total of 21 cm 'of the 20% solution (= 420 mg Cr0,) is necessary.
The usual work-up gives the 12-bromopregnane-3,11,20-trione in colorless platelets with a melting point of 176 to 184 C.
c) 240 mg of this ketobromide are dissolved in 10 cm 'of glacial acetic acid, 400 mg of zinc dust are added and the mixture is heated to 80 ° C. for 15 minutes with constant swirling. Trier by filtering, concentrating the filtrate in vacuo, adding water and extracting ether. the Pregnan-3,11,20-trione as needles united in drusen from the Sehmp. 154 to 1.56'C.
Instead of N-bromoacetamide, for example, chloramine can also be used.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH273600T | 1942-04-25 | ||
| CH251117T | 1942-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH273600A true CH273600A (en) | 1951-02-15 |
Family
ID=25729504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH273600D CH273600A (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) | CH273600A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2782211A (en) * | 1953-09-04 | 1957-02-19 | Ciba Pharm Prod Inc | Manufacture of dehydro compounds of the pregnane series |
-
1942
- 1942-04-25 CH CH273600D patent/CH273600A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2782211A (en) * | 1953-09-04 | 1957-02-19 | Ciba Pharm Prod Inc | Manufacture of dehydro compounds of the pregnane series |
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