CH504436A - Verfahren zur Herstellung von Estern - Google Patents
Verfahren zur Herstellung von EsternInfo
- Publication number
- CH504436A CH504436A CH343170A CH343170A CH504436A CH 504436 A CH504436 A CH 504436A CH 343170 A CH343170 A CH 343170A CH 343170 A CH343170 A CH 343170A CH 504436 A CH504436 A CH 504436A
- Authority
- CH
- Switzerland
- Prior art keywords
- carbon atoms
- alkyl
- radical
- alk
- pyridine
- Prior art date
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/28—Radicals substituted by singly-bound oxygen or sulphur atoms
- C07D213/30—Oxygen atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/26—Radicals substituted by halogen atoms or nitro radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/55—Acids; Esters
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/56—Amides
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/54—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/57—Nitriles
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/61—Halogen atoms or nitro radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/62—Oxygen or sulfur atoms
- C07D213/63—One oxygen atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/80—Acids; Esters in position 3
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/89—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members with hetero atoms directly attached to the ring nitrogen atom
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
Verfahren zur Herstellung von Estern Die Erfindung betrifft ein Verfahren zur Herstellung von neuen Estern, die entzündungshemmende, schmerz- stillende und antipyretische Eigenschaften haben und die Konzentration von Fibrinogen sowie von Cholesterin und/oder Triglyceriden im Blut herabzusetzen vermögen und somit für die Behandlung oder Prophylaxe von Koronararterienkrankheit und Atherosklerose geeignet sind. Gemäss der Erfindung werden Ester der Formel I EMI0001.0005 in welcher X Wasserstoff, einen Alkyl- oder Alkoxyrest mit höchstens 3 C-Atomen oder ein Halogenatom, Y einen gegebenenfalls durch ein oder zwei Halogenatome substituierten Phenylrest, RÚ Wasserstoff, einen Alkyl rest mit höchstens 3 C-Atomen oder einen Alkoxycarbo- nylrest mit höchstens 6 C-Atomen und R2 einen Alkyl rest mit höchstens 5 C-Atomen bedeuten, Alk für einen Alkylrest mit höchstens 3 C-Atomen steht und die Reste Y und - C(Alk)RÚ - COORê nicht an benachbarte C- Atome des Pyridinkerns gebunden sind, hergestellt. Das erfindungsgemässe Verfahren besteht darin, dass man ein Pyridinderivat der Formel II EMI0001.0014 oder eine Alkalimetallverbindung davon, in welcher X, Y, RÚ und R2 die obige Bedeutung besitzen und die Reste Y und - C(Alk)RÚ-COORê nicht an benachbarte C-Atome gebunden sind, entsprechend alkyliert. Zweckmässig kann X z.B. ein Wasserstoffatom, ein Methyl- oder Methoxyradikal oder ein Chlor- oder Bromatom. darstellen. Als Beispiele für das oder die Halogenatome, die gegebenenfalls im Y-Radikal vorhanden sind, kann man Fluor-, Chlor- und Bromatome erwähnen. Die Verbin dungen, bei denen das Y-Radikal einen oder zwei Halo- gensubstituenten enthält, stellen bevorzugte Verbindun gen dar, weil sie im allgemeinen aktiver sind, als die entsprechenden urisubstituierten Phenylderivate. RÚ kann Wasserstoff oder ein Methyl-, Methoxy- carbonyl- oder Äthoxycarbonylrest sein. Das Symbol Alk kann z.B. das Methyl- oder Athylradikal darstellen. Als Salze der Pyridinderivate sind insbesondere die pharmazeutisch zulässigen Säureadditionssalze, wie z.B. Hydrochloride, Hydrobromide, Sulfate oder Phosphate, geeignet. Die als Ausgangsprodukte verwendeten Pyridinderi- vate der Formel II können nach an sich bekannten Methoden hergestellt werden. Die Erfindung ist im folgenden anhand von Ausführungsbeispielen näher erläutert. <I>Beispiel I</I> Es wurden 3,0g Dimethyl-3-(4-chlorphenyl)-2-me- thoxypyrid-6-ylmalonat 1 Stunde mit Natriumhydrid (0,4l g ; 501%-ige Dispersion, die vor Gebrauch zur Ölentfernung gewaschen wurde) in 25 ml trockenen Di- methylformamide verrührt. Dann wurden 2,5 ml Me- thyliodid hinzugegeben, so dass eine milde exotherme Reaktion stattfand. Die Mischung wurde 1 Stunde bei 35-4011 C gerührt, dann m-iit :etwa 30 ml Wasser verdünnt und unter vermindertem Druck erwärmt, um das über schüssige Methyliodid abzudampfen. Der vorhandene Feststoff wurde mit Äther herausgelöst, der dann 3 mal mit Wasser gewaschen, an Natriumsulfat getrocknet und zur Trockne eingedampft wurde. Der Rückstand wurde aus Methanol in Gegenwart von Kohle umkristallisiert. Somit erhielt man farblose Prismen aus Dimethyl-a-(3- (4-chlorphenyl)-2-methoxypyrid-6-yl)-a-methylmalonat, Smp. 106-107 C. <I>Beispiel 2</I> Nach dem Verfahren gemäss Beispiel 1, mit der Abweichung, dass Dimethyl-5-(4-chlorphenyl)pyrid-2-yl- malonat anstelle von Dimethyl-3-(4-chlorphenyl)-2-me- thoxypyrid-6-ylmalonat verwendet wurde, erhielt man Dimethyl-a-(5-(4-chlorphenyl)-pyrid-2-yl)-a-methylmalo- nat. Dieses wurde ber sein Hydrochlorid gereinigt, das aus einer ätherischen Lösung der rohen Base isoliert, in die Base zurückverwandelt und aus Petroläther (Sdp. 60 80 C) umkristallisiert wurde. Die gereinigte Base hatte einen Schmelzpunkt von 58,5-60 C. <I>Beispiel 3</I> Es wurden 0,247 g Natriumhydrid zu einer Lösung von 1,5 g Dimethyl-4-(4-chlorphenyl)-6-methoxypyrid-2- ylmalonat in 15 ml wasserfreien Dimethylformamids zu gegeben. Die Mischung wurde in einer Stickstoffatmo sphäre gerührt, bis kein Wasserstoff mehr entwickelt wurde und die Auflösung vollendet war. Die klare Lösung wurde dann mit Methyljodid (0,915 g) behandelt und noch 1 Stunde bei Raumtemperatur gerührt. Die gelbe Suspension wurde in 150m1 Wasser eingegossen und 3mal mit Äthylacetat extrahiert. Die vereinigten organischen Extrakte wurden mit Wasser gewaschen, an Magnesiumsulfat getrocknet und unter vermindertem Druck zu einem gelben Feststoff eingedampft. Der Fest stoff wurde so weit wie möglich in Äther gelöst, und die Mischuni wurde durch eine Kolonne aus Tonerde (Spence-Korngrösse O 30 g) filtriert. Vom Filtrat wurde das Lösungsmittel abgedampft. Somit erhielt man Dimethyl-a-methyl-a-(4-(4-chlorphenyl)-6-methoxypyrid- 2-yl)malonat, Smp. 118-120 C nach Umkristallisierung aus Petroläther (Sdp. 80-100 C).
Claims (1)
- PATENTANSPRUCH Verfahren zur Herstellung von Estern der Formel EMI0002.0019 in welcher X Wasserstoff, einen Alkyl- oder Alkoxyrest mit höchstens 3 C-Atomen oder ein Halogenatom, Y einen gegebenenfalls durch ein oder zwei Halogenatome substituierten Phenylrest, RÚ Wasserstoff, einen Alkyl rest mit höchstens 3 C-Atomen oder einen Alkoxycar- bonylrest mit höchstens 6 C-Atomen und R2 einen Alkyl rest mit höchstens 5 C-Atomen bedeuten, Alk für einen Alkylrest mit höchstens 3 C-Atomen steht und die Reste Y und - C(Alk)RÚ - COORê nicht an benachbarte C- Atome des Pyridinkerns gebunden sind, dadurch gekenn zeichnet,dass man ein Pyridinderivat der Formel EMI0002.0024 oder eine Alkalimetallverbindung davon, in welcher X, Y, RÚ und R2 die obige Bedeutung besitzen und die Reste Y und - C(Alk)RÚ - COORê nicht an benachbarte C-Atome gebunden sind, entsprechend alkyliert. UNTERANSPRÜCHE 1. Verfahren nach Patentanspruch, dadurch gekenn zeichnet, dass die Alkylierung durch Umsetzung eines 1 bis 3 C-Atome enthaltenden Alkylhalogenids mit einer Alkalimetallverbindung des Pyridinderivates durchge- führt wird. 2.Verfahren nach Patentanspruch oder Unteran- spruch 1, dadurch gekennzeichnet, dass die Alkylierung in einem organischen Lösungsmittel durchgeführt wird. 3. Verfahren nach Patentanspruch, dadurch gekenn zeichnet, dass man die Verfahrensprodukte in Salze, insbesondere in .pharmazeutisch zulässige Säureadditions- salze, überführt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB54135/66A GB1147068A (en) | 1966-12-02 | 1966-12-02 | Phenyl-pyridine derivatives |
CH1696967A CH492712A (de) | 1966-12-02 | 1967-12-01 | Verfahren zur Herstellung von Pyridinderivaten |
Publications (1)
Publication Number | Publication Date |
---|---|
CH504436A true CH504436A (de) | 1971-03-15 |
Family
ID=25718774
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH343170A CH504436A (de) | 1966-12-02 | 1967-12-01 | Verfahren zur Herstellung von Estern |
CH343070A CH492714A (de) | 1966-12-02 | 1967-12-01 | Verfahren zur Herstellung von Pyridyl-alkancarbonsäuren |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH343070A CH492714A (de) | 1966-12-02 | 1967-12-01 | Verfahren zur Herstellung von Pyridyl-alkancarbonsäuren |
Country Status (1)
Country | Link |
---|---|
CH (2) | CH504436A (de) |
-
1967
- 1967-12-01 CH CH343170A patent/CH504436A/de not_active IP Right Cessation
- 1967-12-01 CH CH343070A patent/CH492714A/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CH492714A (de) | 1970-06-30 |
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Legal Events
Date | Code | Title | Description |
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PL | Patent ceased |