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 derivative

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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
Application number
JP4365681A
Other languages
Japanese (ja)
Inventor
Makoto Takeda
Yoshio Hayashi
Eiji Taniyama
Mikio Tsutsui
Akiyoshi Ishigaki
Susumu Mizogami
Mitsuo Hanatsuka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Yuka Pharmaceutical Co Ltd
Mitsubishi Petrochemical Co Ltd
Original Assignee
Mitsubishi Yuka Pharmaceutical Co Ltd
Mitsubishi Petrochemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Yuka Pharmaceutical Co Ltd, Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Yuka Pharmaceutical Co Ltd
Priority to JP4365681A priority Critical patent/JPS57158787A/en
Publication of JPS57158787A publication Critical patent/JPS57158787A/en
Pending legal-status Critical Current

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  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (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
JP4365681A 1981-03-25 1981-03-25 1-h-4-h-pyrazolo(4',3':5,6)pyrano(2,3-b)pyridine derivative Pending JPS57158787A (en)

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)

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