JPS57158787A - 1-h-4-h-pyrazolo(4',3':5,6)pyrano(2,3-b)pyridine derivative - Google Patents
1-h-4-h-pyrazolo(4',3':5,6)pyrano(2,3-b)pyridine derivativeInfo
- Publication number
- JPS57158787A JPS57158787A JP4365681A JP4365681A JPS57158787A JP S57158787 A JPS57158787 A JP S57158787A JP 4365681 A JP4365681 A JP 4365681A JP 4365681 A JP4365681 A JP 4365681A JP S57158787 A JPS57158787 A JP S57158787A
- Authority
- JP
- Japan
- Prior art keywords
- pyrano
- pyrazolo
- alkyl
- pyridine derivative
- formulai
- 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)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
NEW MATERIAL:A compound shown by the formulaI(X is H, alkyl, aralkyl, phenyl, trifluoromethyl, etc.; Y is H, alkyl, aralkyl, phenyl, naphthyl, etc.; Z is O, 2H, alkylidene; R is H, halogen, alkyl; n is 0W3).
EXAMPLE: 1,3-Dimethyl-1H-4H-pyrazolo[4',3':5.6]pyrano[2,3-b]pyridine-4-one.
USE: An antiphlogistic. An analgesic. Also useful as an intermidiate for preparing drugs and agricultural chemicals.
PROCESS: A 2-pyrazolone-5-one shown by the formula II is reacted with a 2-halogenonicontinic acid chloride shown by the formula III in the presence of a base (e.g., calcium hydroxide, etc.), to give a compound shown by the formulaI.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4365681A JPS57158787A (en) | 1981-03-25 | 1981-03-25 | 1-h-4-h-pyrazolo(4',3':5,6)pyrano(2,3-b)pyridine derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4365681A JPS57158787A (en) | 1981-03-25 | 1981-03-25 | 1-h-4-h-pyrazolo(4',3':5,6)pyrano(2,3-b)pyridine derivative |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57158787A true JPS57158787A (en) | 1982-09-30 |
Family
ID=12669898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4365681A Pending JPS57158787A (en) | 1981-03-25 | 1981-03-25 | 1-h-4-h-pyrazolo(4',3':5,6)pyrano(2,3-b)pyridine derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57158787A (en) |
-
1981
- 1981-03-25 JP JP4365681A patent/JPS57158787A/en active Pending
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