CH542238A - Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroids - Google Patents
Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroidsInfo
- Publication number
- CH542238A CH542238A CH1449068A CH1449068A CH542238A CH 542238 A CH542238 A CH 542238A CH 1449068 A CH1449068 A CH 1449068A CH 1449068 A CH1449068 A CH 1449068A CH 542238 A CH542238 A CH 542238A
- Authority
- CH
- Switzerland
- Prior art keywords
- esterified
- oxo
- free
- dependent
- aza
- Prior art date
Links
- 230000000202 analgesic effect Effects 0.000 title abstract 2
- 125000004043 oxo group Chemical group O=* 0.000 claims abstract description 10
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 6
- 238000006237 Beckmann rearrangement reaction Methods 0.000 claims abstract description 4
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 claims abstract description 4
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 claims abstract description 3
- 125000000350 glycoloyl group Chemical group O=C([*])C([H])([H])O[H] 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims description 11
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 7
- 150000002923 oximes Chemical class 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- 239000002841 Lewis acid Substances 0.000 claims description 3
- 150000007517 lewis acids Chemical class 0.000 claims description 3
- 230000008707 rearrangement Effects 0.000 claims description 3
- 239000012442 inert solvent Substances 0.000 claims description 2
- UHZYTMXLRWXGPK-UHFFFAOYSA-N phosphorus pentachloride Chemical compound ClP(Cl)(Cl)(Cl)Cl UHZYTMXLRWXGPK-UHFFFAOYSA-N 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 125000006239 protecting group Chemical group 0.000 claims description 2
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 125000000217 alkyl group Chemical group 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 abstract 1
- 125000001589 carboacyl group Chemical group 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 18
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- -1 ethylenedioxy group Chemical group 0.000 description 10
- 238000002329 infrared spectrum Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 5
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 241000269333 Caudata Species 0.000 description 3
- 229930013930 alkaloid Natural products 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000000825 pharmaceutical preparation Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000012280 lithium aluminium hydride Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- SMNDYUVBFMFKNZ-UHFFFAOYSA-N 2-furoic acid Chemical compound OC(=O)C1=CC=CO1 SMNDYUVBFMFKNZ-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- ZRPLANDPDWYOMZ-UHFFFAOYSA-N 3-cyclopentylpropionic acid Chemical compound OC(=O)CCC1CCCC1 ZRPLANDPDWYOMZ-UHFFFAOYSA-N 0.000 description 1
- XMIIGOLPHOKFCH-UHFFFAOYSA-N 3-phenylpropionic acid Chemical compound OC(=O)CCC1=CC=CC=C1 XMIIGOLPHOKFCH-UHFFFAOYSA-N 0.000 description 1
- QZLYKIGBANMMBK-UGCZWRCOSA-N 5α-Androstane Chemical compound C([C@@H]1CC2)CCC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CCC[C@@]2(C)CC1 QZLYKIGBANMMBK-UGCZWRCOSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 1
- 230000021736 acetylation Effects 0.000 description 1
- 238000006640 acetylation reaction Methods 0.000 description 1
- 230000010933 acylation Effects 0.000 description 1
- 238000005917 acylation reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 150000003797 alkaloid derivatives Chemical class 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 150000001441 androstanes Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000000477 aza group Chemical group 0.000 description 1
- RTEXIPZMMDUXMR-UHFFFAOYSA-N benzene;ethyl acetate Chemical compound CCOC(C)=O.C1=CC=CC=C1 RTEXIPZMMDUXMR-UHFFFAOYSA-N 0.000 description 1
- WXBLLCUINBKULX-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1.OC(=O)C1=CC=CC=C1 WXBLLCUINBKULX-UHFFFAOYSA-N 0.000 description 1
- MDHYEMXUFSJLGV-UHFFFAOYSA-N beta-phenethyl acetate Natural products CC(=O)OCCC1=CC=CC=C1 MDHYEMXUFSJLGV-UHFFFAOYSA-N 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- UREBWPXBXRYXRJ-UHFFFAOYSA-N ethyl acetate;methanol Chemical compound OC.CCOC(C)=O UREBWPXBXRYXRJ-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 125000002541 furyl group Chemical group 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000003589 local anesthetic agent Substances 0.000 description 1
- 125000005394 methallyl group Chemical group 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000007911 parenteral administration Methods 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- 125000004309 pyranyl group Chemical group O1C(C=CC=C1)* 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000006894 reductive elimination reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J73/00—Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by substitution of one or two carbon atoms by hetero atoms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
- B65B27/02—Bundling bricks or other building blocks
-
- 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)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Steroid Compounds (AREA)
Abstract
Analgesic and CNS active 19-hydroxy-3-aaza-a-homosteroids. M3A. are new cmpds. of formula: opt. containing a double bond at 4a, 5 or 5,6 (R' = H, lower alkanoyl; R2C = OH opt. esterified or etherified; R3 = free or ketalised oxo group; OH opt. esterified or etherified where R4 is H, or lower aliphatic hydrocarbon e.g. alkyl; or opt. esterified or etherified where R5 is acetyl or hydroxyacetyl; Also disclosed is a process for preparing cpds. of formula: (opt. containing a double bond at 4,4a or 5,6 and where R1, R3 and R3 are as in I) by treating a cpd. of formula (where one of R0 is oxo and the other represent 2 H atoms and R2 is as above but not free oxo) with hydroxylamine followed by Beckmann rearrangement of the oxine. Optionally conversion of various groups subsequently, e.g. formation of salts, hydrolysis etc.
Description
Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung neuer 3-Aza-A-homo-steroide der allgemeinen Formel
EMI1.1
worin R20 für eine freie, veresterte oder verätherte Hydroxylgruppe, vorzugsweise für einen Alkanoyloxyrest mit 1-5 Kohlenstoffatomen oder einen gegebenenfalls durch Phenylreste substituierten Alkyloxyrest mit 1-5 Kohlenstoffatomen steht und R3 eine ketalisierte Oxogruppe z.
B. die Äthylendioxygruppe oder eine ss-ständige freie, veresterte oder verätherte Hydroxylgruppe zusammen mit einem Wasserstoffatom oder einem aliphatischen Kohlenwasserstoffrest mit 1-5 Kohlenstoffatomen oder ein a-ständiges Wasserstoffatom oder eine aständige freie, veresterte oder verätherte Hydroxylgruppe zusammen mit einer Acetyl- oder Hydroxyacetylgruppe oder ein a-ständiges Wasserstoffatom zusammen mit der 1',5' Dimethyl-hexylgruppe bedeutet.
Eine veresterte Hydroxylgruppe ist insbesondere eine mit einer aliphatischen, alicyclischen, araliphatischen, aromatischen oder heterocyclischen Carbonsäure mit höchstens 20 Kohlenstoffatomen, z.B. der Ameisen-, Methylkohlen-, Essig- Trifluoressig-, Trimethylessig-, Propion-, Caprin-, Dekan-, Undecylen-, Hexahydrobenzol-, Cyclopentylpropion-, Phenylpropion-, Benzoe- oder Furancarbonsäure veresterte Hydroxylgruppe. Eine verätherte Hydroxylgruppe ist insbesondere eine solche, die mit aliphatischen, cycloaliphatischen, araliphatischen oder heterocyclischen Alkoholen, wie Alkanolen mit 1-5 Kohlenstoffatomen oder Furanyl- oder Pyranylalkanolen veräthert ist.
Als aliphatische Kohlenwasserstoffreste mit 1-5 Kohlenstoffatomen kommen z. B. Alkyl-, wie Methyl-, Äthyl-, Propyl- oder Isopropylreste, Alkenyl-, wie Vinyl-, Allyl- oder Methallylreste, oder Alinyl-, wie Äthinyl- oder Propinylreste, in Frage.
Die erfindungsgemäss erhältlichen neuen Verbindungen besitzen wertvolle pharmakologische Eigenschaften. So haben sie eine starke Wirkung auf das Zentralnervensystem, ähnlich derjenigen der Salamander-Alkaloide; ferner weisen sie eine starke lokalanästhetische Wirkung auf und können somit in der Human- und Veterinärmedizin Verwendung finden. Sie sind ferner wertvolle Zwischenprodukte zur Herstellung der Salamander-Alkaloide und deren Derivate. So können z. B.
entsprechende Androstanverbindungen zur Herstellung des hochwirksamen Salamander-Alkaloids Cycloneosamandion oder dessen Derivate dienen.
Die genannten neuen Verbindungen der Formel I werden erhalten, wenn man erfindungsgemäss eine Verbindung der Formel
EMI1.2
oder eine A4-Derivat solcher Verbindungen, mit Hydroxylamin oder einem Salz davon umsetzt, das erhaltene Oxim der Beckmann'schen Umlagerung unterwirft und im Umlagerungsprodukt die gebildete Oxogruppe in 4-Stellung durch Reduktion abspaltet. Wenn erwünscht wird anschliessend eine vorhandene geschützte Oxogruppe in die freie Oxogruppe überführt, oder die Azagruppe N- acyliert.
Diese Reaktionen werden in der Regel in an sich bekannter Weise durchgeführt. So kann man beispielsweise die Bildung des Oxims durch Umsetzung der 3-Oxoverbindung mit Hydroxylamin oder einem Salz davon, wie Hydroxylamin-hydrochlorid, in Gegenwart einer tertiären Base, z. B. Pyridin, durchführen. Das Oxim wird zweckmässig mit einer starken Lewissäure, z. B. Schwefelsäure, Salzsäure, Phosphorpentachlorid, Sulfurylchlorid oder Thionylchlorid, vorzugsweise in einem inerten Lösungsmittel, wie Dioxan, nach Beckmann in die Azaverbindung umgelagert. Enthält das Ausgangsmaterial in 4,5-Stellung eine Doppelbindung, erhält man immer die 3-Azaverbindung während bei Abwesenheit der 4,5-Doppelbindung ein Gemisch der 3- und 4-Azaverbindungen anfällt, das sich nach dem Acylieren leicht chromatographisch trennen lässt.
Die reduktive Abspaltung der Oxogruppe in 4-Stellung erfolgt z. B. mittels Lithiumaluminiumhydrid.
In den erhaltenen Aza-A-homo-verbindungen können gegebenenfalls vorhandene Schutzgruppen, wie Ketale, hydrolytisch gespalten werden.
Die Ausgangsstoffe sowie die Reaktionskomponenten können gegebenenfalls in Form ihrer Salze vorliegen.
Die neuen erfindungsgemäss erhältlichen Verbindungen der Formel I können als Heilmittel in Form pharmazeutischer Präparate, Verwendung finden, welche sie in Mischung mit einem für die enterale oder parenterale Applikation geeigneten pharmazeutischen organischen oder anorganischen, festen oder flüssigen Trägermaterial enthalten. Für die Bildung desselben kommen solche Stoffe in Frage, die mit den neuen Verbindungen nicht reagieren. Die pharmazeutischen Präparate können in fester Form oder in flüssiger Form vorliegen.
Gegebenenfalls enthalten sie Hilfsstoffe, wie Konservierungs-, Stabilisierungs-, Netz- oder Emulgiermittel, Lösungsvermittler oder Salze zur Veränderung des osmotischen Druckes oder Puffer. Sie können auch andere therapeutisch wertvolle Substanzen enthalten. Die pharmazeutischen Präparate werden nach üblichen Methoden gewonnen.
Die erfindungsgem äss erhältlichen neuen Verbindungen können auch in der Tiermedizin, z. B. in einer der oben genannten Formen oder in Form von Futtermitteln oder von Zusatzmitteln für Tierfutter, verwendet werden. Dabei werden z. B. die üblichen Streck- und Verdünnungsmittel bzw. Futtermittel angewendet.
In den folgenden Beispielen sind die Temperaturen in Celsiusgraden angegeben. Die IR-Spektren sind in Nujol aufgenommen.
Beispiel I
2 g 3-Oxo-17ss,19-diacetoxy-54-androsten erwärmt man mit 2 g Hydroxylamin-chlorhydrat in 40 ml Pyridin 1 '/2 Stunden auf 90o und dampft anschliessend im Vakuum ein. Der Eindampfrückstand wird in Methylenchlorid aufgenommen, die Lösung neutral gewaschen, über Natriumsulfat getrocknet und eingedampft. Man erhält das 3-Oximino-17ss,19-diacetoxy-A4- androsten als amorphes Produkt, das in IR-Spektrum Banden bei 3580, 1730 und 1240 cm-' zeigt.
11,5 g des Oxims werden in 50 ml Dioxan gelöst und mit 2 ml Thionylchlorid versetzt. Man erwärmt das Reaktionsgemisch eine Stunde auf 600, neutralisiert mit eiskalter wässriger Natriumhydrogencarbonatlösung und zieht mit Methylenchlorid aus. Der Extrakt wird neutral gewaschen, getrocknet und eingedampft. Man chromatographiert zweimal an Kieselgel (Merck, 0,05-0,2 mm) eluiert mit einem 10:1-Gemisch von Essigester-Methanol und kristallisiert aus Aceton-Petroläther um. Man erhält so das 3-Aza-4-oxo-17ss,19-diacetoxy-A- homo-A4a-androsten vom F. 1950; [a]D = + 53O (c = 0,49 in Chloroform). Es zeigt in IR-Spektrum Banden bei 3420, 1730, 1655 und 1240 cm-'.
3 g davon werden mit Wasserstoff in Gegenwart von 1 g Pd/ C-Katalysator in 200 ml Äthanol erschöpfend hydriert. Man filtriert vom Katalysator ab, dampft den Rückstand ein und kristallisiert ihn aus Aceton-Petroläther um. Das so erhaltene 3-Aza-4-oxo- 17ss,19-diacetoxy-A-homo-5a-androstan besitzt den Doppelschmelzpunkt 133/1650 [Q]D = +3 (c = 0,39 aus Chloroform). Es zeigt in IR-Spektrum Banden bei 3410,1730, 1665 und 1245 cm-'.
320 mg davon werden mit 600 mg Lithiumaluminiumhydrid in 100 ml Dioxan 20 Stunden gekocht. Dann tropft man unter Eiskühlung Wasser zu, filtriert von den ausgeschiedenen anorganischen Bestandteilen ab, wäscht mit Methylenchlorid nach, dampft das Filtrat zur Trockne ein und erhält rohes 3-Aza 17ss,19-dihydroxy-A-homo-5a-androstan. 100 mg davon werden eine Stunde im Wasserbad acetyliert und an Silicagel chromatographiert. Das mit Essigester eluierte N-Acetyl-3 aza-17ss,19-diacetoxy-A-homo-Sa-androstan ist amorph. Es zeigt in IR-Spektrum Banden bei 1730, 1625 und 1250 cm-'.
Beispiel 2
5,1 g 3-Oxo-17ss,19-diacetoxy-5ss-androstan werden in 70 ml Pyridin gelöst, und 2 Stunden mit 5,1 g Hydroxylaminhydrochlorid gekocht. Man dampft zur Trockne ein, nimmt in Methylenchlorid auf, wäscht neutral und chromatographiert an Kieselgel (Merck, 0,05-0,2 mm). Man eluiert mit einem 2:1 Gemisch von Benzol-Essigester, dampft ein und kristallisiert den Rückstand aus Äther-Petroläther zweimal um. Das 3 Oximino-17S,1 9-diacetoxy-5 B-androstan schmilzt bei 1420.
[a]D = +39 (c = 0,94 in Chloroform). Im IR-Spektrum zeigt es Banden bei 3580, 1730 und 1250 cm-'.
2,1 g davon werden in 10 ml Dioxan gelöst und bei 5O mit 1 ml Thionylchlorid versetzt. Das Gemisch wird zwei Stunden bei 200 stehen gelassen, auf eisgekühlte, wässrige Natriumhydrogencarbonatlösung gegossen und mit Methylenchlorid ausgezogen. Der Extrakt wird gewaschen über Natriumsulfat getrocknet und eingedampft. Nach dem Chromatographieren an Kieselgel und auslösen mit Essigester erhält man ein Produkt das bei 204-2060 schmilzt. Nach dreimaliger Kristallisation aus Aceton-Petroläther steigt der Schmelzpunkt auf 2052070. [a]D = +290 (c= 0,53 in Chloroform).
2 g dieses Gemisches, das aus 3-Aza-4-oxo- und 3-Oxo 4-aza-17ss,19-diacetoxy-A-homo-5 ss-androstan besteht, werden mit 4 g Lithiumaluminium in 800 ml Dioxan 20 Stunden gekocht. Dann tropft man unter Eiskühlung Wasser zu, filtriert von den ausgeschiedenen anorganischen Bestandteilen ab, wäscht mit Methylenchlorid nach und dampft das Filtrat ein.
Man erhält nach Acetylierung ein Gemisch von N-Acetyl-3aza- und N-Acetyl-4-aza-17B,19-diacetoxy-A-homo-5 androstan das nach zweimaligem Umkristallisieren aus Aceton-Petroläther bei 144-145O schmilzt. [Q]D = + 280 (c = 0,40 in Chloroform). Es zeigt in IR-Spektrum Banden bei 1730,
1625 und 1250 cm-'.
The present invention relates to a process for the preparation of new 3-aza-A-homosteroids of the general formula
EMI1.1
wherein R20 represents a free, esterified or etherified hydroxyl group, preferably an alkanoyloxy radical having 1-5 carbon atoms or an alkyloxy radical optionally substituted by phenyl radicals having 1-5 carbon atoms and R3 is a ketalized oxo group z.
B. the ethylenedioxy group or a ss-free, esterified or etherified hydroxyl group together with a hydrogen atom or an aliphatic hydrocarbon radical with 1-5 carbon atoms or an a-position hydrogen atom or a free, esterified or etherified hydroxyl group together with an acetyl or hydroxyacetyl group or a hydrogen atom in a position together with the 1 ', 5' dimethylhexyl group.
An esterified hydroxyl group is in particular one with an aliphatic, alicyclic, araliphatic, aromatic or heterocyclic carboxylic acid having at most 20 carbon atoms, e.g. the formic, methyl carbon, acetic, trifluoroacetic, trimethyl acetic, propionic, capric, decanoic, undecylene, hexahydrobenzene, cyclopentylpropionic, phenylpropionic, benzoic or furancarboxylic acid esterified hydroxyl group. An etherified hydroxyl group is in particular one which is etherified with aliphatic, cycloaliphatic, araliphatic or heterocyclic alcohols, such as alkanols with 1-5 carbon atoms or furanyl or pyranyl alkanols.
As aliphatic hydrocarbon radicals with 1-5 carbon atoms, for. B. alkyl, such as methyl, ethyl, propyl or isopropyl, alkenyl, such as vinyl, allyl or methallyl, or alinyl, such as ethynyl or propynyl, are in question.
The new compounds obtainable according to the invention have valuable pharmacological properties. They have a strong effect on the central nervous system, similar to that of the salamander alkaloids; they also have a strong local anesthetic effect and can therefore be used in human and veterinary medicine. They are also valuable intermediate products for the production of the salamander alkaloids and their derivatives. So z. B.
Corresponding androstane compounds are used to produce the highly effective salamander alkaloid cycloneosamandione or its derivatives.
The new compounds of the formula I mentioned are obtained when, according to the invention, a compound of the formula
EMI1.2
or an A4 derivative of such compounds is reacted with hydroxylamine or a salt thereof, the resulting oxime is subjected to the Beckmann rearrangement and the oxo group formed in the 4-position is split off in the rearrangement product by reduction. If desired, a protected oxo group that is present is then converted into the free oxo group, or the aza group is N-acylated.
These reactions are usually carried out in a manner known per se. For example, the oxime can be formed by reacting the 3-oxo compound with hydroxylamine or a salt thereof, such as hydroxylamine hydrochloride, in the presence of a tertiary base, e.g. B. pyridine perform. The oxime is conveniently treated with a strong Lewis acid, e.g. B. sulfuric acid, hydrochloric acid, phosphorus pentachloride, sulfuryl chloride or thionyl chloride, preferably in an inert solvent such as dioxane, rearranged according to Beckmann into the aza compound. If the starting material contains a double bond in the 4,5-position, the 3-aza compound is always obtained, while in the absence of the 4,5-double bond, a mixture of the 3- and 4-aza compounds is obtained which can easily be separated by chromatography after acylation.
The reductive cleavage of the oxo group in position 4 takes place, for. B. by means of lithium aluminum hydride.
Protective groups, such as ketals, which may be present in the aza-A-homo compounds obtained can be cleaved hydrolytically.
The starting materials and the reaction components can optionally be in the form of their salts.
The new compounds of the formula I obtainable according to the invention can be used as medicaments in the form of pharmaceutical preparations which they contain as a mixture with a pharmaceutical, organic or inorganic, solid or liquid carrier material suitable for enteral or parenteral administration. For the formation of the same, substances come into question that do not react with the new compounds. The pharmaceutical preparations can be in solid form or in liquid form.
They may contain auxiliaries, such as preservatives, stabilizers, wetting agents or emulsifiers, solubilizers or salts for changing the osmotic pressure or buffers. They can also contain other therapeutically valuable substances. The pharmaceutical preparations are obtained using conventional methods.
The novel compounds obtainable according to the invention can also be used in veterinary medicine, e.g. B. in one of the above forms or in the form of feed or additives for animal feed. Here z. B. the usual extenders and thinners or feed used.
In the following examples the temperatures are given in degrees Celsius. The IR spectra are recorded in Nujol.
Example I.
2 g of 3-oxo-17ss, 19-diacetoxy-54-androstene are heated with 2 g of hydroxylamine chlorohydrate in 40 ml of pyridine at 90 ° for 1/2 hour and then evaporated in vacuo. The evaporation residue is taken up in methylene chloride, the solution washed neutral, dried over sodium sulfate and evaporated. The 3-oximino-17ss, 19-diacetoxy-A4-androstene is obtained as an amorphous product which shows bands at 3580, 1730 and 1240 cm- 'in the IR spectrum.
11.5 g of the oxime are dissolved in 50 ml of dioxane, and 2 ml of thionyl chloride are added. The reaction mixture is heated to 600 for one hour, neutralized with ice-cold aqueous sodium hydrogen carbonate solution and extracted with methylene chloride. The extract is washed neutral, dried and evaporated. It is chromatographed twice on silica gel (Merck, 0.05-0.2 mm), eluted with a 10: 1 mixture of ethyl acetate-methanol and recrystallized from acetone-petroleum ether. This gives 3-aza-4-oxo-17ss, 19-diacetoxy-A-homo-A4a-androstene from 1950; [a] D = + 53O (c = 0.49 in chloroform). In the IR spectrum it shows bands at 3420, 1730, 1655 and 1240 cm- '.
3 g of this are exhaustively hydrogenated with hydrogen in the presence of 1 g of Pd / C catalyst in 200 ml of ethanol. The catalyst is filtered off, the residue is evaporated and it is recrystallized from acetone-petroleum ether. The 3-aza-4-oxo-17ss, 19-diacetoxy-A-homo-5a-androstane obtained in this way has the double melting point 133/1650 [Q] D = +3 (c = 0.39 from chloroform). In the IR spectrum it shows bands at 3410, 1730, 1665 and 1245 cm- '.
320 mg of it are boiled with 600 mg lithium aluminum hydride in 100 ml dioxane for 20 hours. Water is then added dropwise with ice cooling, the separated inorganic constituents are filtered off, washed with methylene chloride, the filtrate is evaporated to dryness and crude 3-aza 17ss, 19-dihydroxy-A-homo-5a-androstane is obtained. 100 mg of this are acetylated for one hour in a water bath and chromatographed on silica gel. The N-acetyl-3 aza-17ss, 19-diacetoxy-A-homo-Sa-androstane eluted with ethyl acetate is amorphous. In the IR spectrum it shows bands at 1730, 1625 and 1250 cm- '.
Example 2
5.1 g of 3-oxo-17ss, 19-diacetoxy-5ss-androstane are dissolved in 70 ml of pyridine and boiled with 5.1 g of hydroxylamine hydrochloride for 2 hours. It is evaporated to dryness, taken up in methylene chloride, washed neutral and chromatographed on silica gel (Merck, 0.05-0.2 mm). It is eluted with a 2: 1 mixture of benzene-ethyl acetate, evaporated and the residue is recrystallized twice from ether-petroleum ether. The 3 oximino-17S, 1 9-diacetoxy-5 B-androstane melts at 1420.
[a] D = +39 (c = 0.94 in chloroform). In the IR spectrum it shows bands at 3580, 1730 and 1250 cm- '.
2.1 g of this are dissolved in 10 ml of dioxane, and 1 ml of thionyl chloride is added at 50. The mixture is left to stand at 200 for two hours, poured onto ice-cold, aqueous sodium hydrogen carbonate solution and extracted with methylene chloride. The extract is washed, dried over sodium sulfate and evaporated. After chromatography on silica gel and dissolving with ethyl acetate, a product is obtained which melts at 204-2060. After three crystallizations from acetone-petroleum ether, the melting point rises to 2052070. [a] D = +290 (c = 0.53 in chloroform).
2 g of this mixture, which consists of 3-aza-4-oxo- and 3-oxo 4-aza-17ss, 19-diacetoxy-A-homo-5ss-androstane, are mixed with 4 g of lithium aluminum in 800 ml of dioxane for 20 hours cooked. Water is then added dropwise with ice-cooling, the inorganic constituents which have separated out are filtered off, washed with methylene chloride and the filtrate is evaporated.
After acetylation, a mixture of N-acetyl-3aza and N-acetyl-4-aza-17B, 19-diacetoxy-A-homo-5 androstane is obtained which, after being recrystallized twice from acetone-petroleum ether, melts at 144-145O. [Q] D = + 280 (c = 0.40 in chloroform). It shows bands at 1730 in the IR spectrum,
1625 and 1250 cm- '.
Claims (1)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1562072A CH538511A (en) | 1968-09-27 | 1968-09-27 | Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroids |
| CH1449068A CH542238A (en) | 1968-09-27 | 1968-09-27 | Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroids |
| DE19691947455 DE1947455A1 (en) | 1968-09-27 | 1969-09-19 | New 19-hydroxy-3-aza-A-homosteroids and a process for their preparation |
| US860089A US3706736A (en) | 1968-09-27 | 1969-09-22 | 19-hydroxy-3-aza-a-homo-steroids |
| GB46832/69A GB1254626A (en) | 1968-09-27 | 1969-09-23 | New 19-hydroxy-3-aza-a-homo-steroids and a process for their manufacture |
| FR6932700A FR2019022A1 (en) | 1968-09-27 | 1969-09-25 | |
| NL6914671A NL6914671A (en) | 1968-09-27 | 1969-09-26 | |
| BR212781/69A BR6912781D0 (en) | 1968-09-27 | 1969-09-26 | PROCESS FOR THE MANUFACTURE OF NEW 19-HYDROXY-3-AZA-AHOMO-STEROIDS |
| BE739418D BE739418A (en) | 1968-09-27 | 1969-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1449068A CH542238A (en) | 1968-09-27 | 1968-09-27 | Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH542238A true CH542238A (en) | 1973-09-30 |
Family
ID=4401268
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1449068A CH542238A (en) | 1968-09-27 | 1968-09-27 | Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroids |
| CH1562072A CH538511A (en) | 1968-09-27 | 1968-09-27 | Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroids |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1562072A CH538511A (en) | 1968-09-27 | 1968-09-27 | Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroids |
Country Status (1)
| Country | Link |
|---|---|
| CH (2) | CH542238A (en) |
-
1968
- 1968-09-27 CH CH1449068A patent/CH542238A/en not_active IP Right Cessation
- 1968-09-27 CH CH1562072A patent/CH538511A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH538511A (en) | 1973-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1947455A1 (en) | New 19-hydroxy-3-aza-A-homosteroids and a process for their preparation | |
| DE1618065B2 (en) | 21-OXO-23-DESOXO-CARDENOLIDE, PROCESS FOR THE PRODUCTION THEREOF AND MEDICINAL PRODUCTS MANUFACTURED FROM THEM | |
| CH505815A (en) | Furan derivs dietetic aids to nourishment androgenic | |
| DE1568308B2 (en) | PROCESS FOR MANUFACTURING DELTA HIGH 4,9,11-TRIENES OF THE 19-NOR- ANDROSTAN SERIES, 17-OXYGENATED 3-OXO- 7 ALPHA-METHYL-DELTA HIGH 4,9,11-19 NOR- ANDROSTATRIENE AND PHARMACEUTICALS CONTAINING THESE PRODUCTS 3-OXO-7 ALPHA -METHYL-DELTA UP 5 (10), 9 (11) -19-NOR- ANDROSTADIENE | |
| DE2226552A1 (en) | Unsaturated steroids containing a cyano group and process for their preparation | |
| CH542238A (en) | Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroids | |
| DE1947221A1 (en) | 3-Aza-19-hydroxy-3,19-cyclo-A-homosteroids and a process for their preparation | |
| DE2013032A1 (en) | 3-Amino-cardenolides and process for their preparation | |
| DE1618871C3 (en) | Process for the production of a steroid ketone derivative. Eliminated from: 1468988 | |
| DE2335827A1 (en) | 2BETA-HYDROXY-3ALPHA-AMINOSTEROIDS, THEIR DERIVATIVES AND THE PROCESS FOR THEIR PRODUCTION | |
| CH537948A (en) | Analgesic and cns active 19-hydroxy-3-aza-a- - homosteroids | |
| CH522622A (en) | 6-alpha methyl-17 alpha-caproyloxy-19-non- - progesterone having progestative and anti- | |
| DE2109154A1 (en) | New Spiro square bracket on steroid-17,2-furan-3-one square bracket and a method for their production | |
| DE2319873C2 (en) | 16-O-alkyl derivatives of gitoxigenin digitoxosides, processes for their preparation and pharmaceuticals containing them | |
| DE2031237A1 (en) | Process for the preparation of new 5 beta, 19 (Epoxyathanoimino) steroids | |
| AT344335B (en) | PROCESS FOR THE PRODUCTION OF NEW DERIVATIVES OF VITAMIN D2 OR D3 AND THE EPI VITAMIN D2 AND D3 | |
| DE1966921C3 (en) | 17 alpha-propadienyl-substituted 3-ketosteroids and process for their preparation | |
| DE1443546C (en) | Process for the production of 6 methyl delta to the power of 14 steroids of the pregnan series | |
| AT235477B (en) | Process for the preparation of new steroid compounds condensed with an isoxazole ring | |
| DE1618980C3 (en) | 11,13beta-dialkylgon-4-ene-3,17beta-diols and their esters substituted in the 17-position | |
| CH500958A (en) | Process for making steroid compounds | |
| DE1568308C3 (en) | 09/10/65 Switzerland 12624-65 Process for the production of delta high 4,9,11-trienes of the 19-norandrostan series, 17-oxygenated 3-oxo-7 alpha-methyl-delta high 4,9,11-19 and norandrostatrienes containing them pharmaceutical preparations and 3-oxo-7 alpha-methyl-delta to the power of 5 (10), 9 (11) -19-norandrostadienes | |
| DE2118995A1 (en) | New highly estrogenic steroids and a process for their production | |
| DE2558208A1 (en) | (19)-Nor-(10)-cyano-convallatoxin derivs. - useful for oral treatment of cardiac insufficiency | |
| DE2407889A1 (en) | 1,3-DIAETHER OF THE 2-AZAOESTRATRIENE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |