JPS5673070A - Pyrazolecarboxylic acid derivative - Google Patents
Pyrazolecarboxylic acid derivativeInfo
- Publication number
- JPS5673070A JPS5673070A JP14910079A JP14910079A JPS5673070A JP S5673070 A JPS5673070 A JP S5673070A JP 14910079 A JP14910079 A JP 14910079A JP 14910079 A JP14910079 A JP 14910079A JP S5673070 A JPS5673070 A JP S5673070A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- acid derivative
- give
- pyrazolecarboxylic acid
- compound
- 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
Links
Landscapes
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
NEW MATERIAL:A pyrazolecarboxylic acid derivative expressed by formula I [R1 is straight chain alkyl of CnH2n+1 (n is an integer 13W17); R2 is H or lower alkyl].
EXAMPLE: Ethyl5-n-tridecylpyrazole-3-carboxylate.
USE: A medicine having remarkably improved antilipemic action.
PROCESS: An enolate sodium salt of formula II obtained by the Claisen condensation of a higher alkyl methyl ketone with diethyl oxalate is heated with hydrazine hydrate in a mineral acid under refluxing for 4W10hr with stirring to give an ester compound of formula I, which is then reacted with NaOH in an aqueous solution of a lower alkanol at 100°C to give the compound of formula I.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14910079A JPS5673070A (en) | 1979-11-16 | 1979-11-16 | Pyrazolecarboxylic acid derivative |
ES497143A ES8203350A1 (en) | 1979-11-16 | 1980-11-13 | Pyrazole derivatives, process for their preparation and pharmaceutical compositions containing them. |
EP19800304106 EP0029363A1 (en) | 1979-11-16 | 1980-11-14 | Pyrazole derivatives, process for their preparation and pharmaceutical compositions containing them |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14910079A JPS5673070A (en) | 1979-11-16 | 1979-11-16 | Pyrazolecarboxylic acid derivative |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5673070A true JPS5673070A (en) | 1981-06-17 |
Family
ID=15467690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14910079A Pending JPS5673070A (en) | 1979-11-16 | 1979-11-16 | Pyrazolecarboxylic acid derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5673070A (en) |
-
1979
- 1979-11-16 JP JP14910079A patent/JPS5673070A/en active Pending
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