JPS56122353A - Pyridinol derivative and its preparation - Google Patents

Pyridinol derivative and its preparation

Info

Publication number
JPS56122353A
JPS56122353A JP2476780A JP2476780A JPS56122353A JP S56122353 A JPS56122353 A JP S56122353A JP 2476780 A JP2476780 A JP 2476780A JP 2476780 A JP2476780 A JP 2476780A JP S56122353 A JPS56122353 A JP S56122353A
Authority
JP
Japan
Prior art keywords
formula
pyridinol
methyl
preparation
halogen
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.)
Granted
Application number
JP2476780A
Other languages
Japanese (ja)
Other versions
JPS6314710B2 (en
Inventor
Sadakatsu Shimada
Toshihiro Fujiwara
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.)
Daiichi Pharmaceutical Co Ltd
Original Assignee
Daiichi Pharmaceutical 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 Daiichi Pharmaceutical Co Ltd filed Critical Daiichi Pharmaceutical Co Ltd
Priority to JP2476780A priority Critical patent/JPS56122353A/en
Publication of JPS56122353A publication Critical patent/JPS56122353A/en
Publication of JPS6314710B2 publication Critical patent/JPS6314710B2/ja
Granted legal-status Critical Current

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  • Pyridine Compounds (AREA)

Abstract

NEW MATERIAL:2-Methyl-6-amino-3-pyridinol of formula IV.
USE: Intermediate of medicines such as 5,8-dihydro-5-alkyl-8-oxofuro(3,2,-b)(1,8)- naphthyridine.
PROCESS: 2-Methyl-3-pyridinol of formula I is made to react with a diazonium salt of formula II (R is H, alkyl, alkoxy, halogen, or SO3Na; X is halogen) to obtain 2-methyl-6-(substituted or unsubstituted)phenylazo-3-pyridinol derivative, which is subjected to reductive scission reaction to afford the objective compound of formula IV.
COPYRIGHT: (C)1981,JPO&Japio
JP2476780A 1980-02-29 1980-02-29 Pyridinol derivative and its preparation Granted JPS56122353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2476780A JPS56122353A (en) 1980-02-29 1980-02-29 Pyridinol derivative and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2476780A JPS56122353A (en) 1980-02-29 1980-02-29 Pyridinol derivative and its preparation

Publications (2)

Publication Number Publication Date
JPS56122353A true JPS56122353A (en) 1981-09-25
JPS6314710B2 JPS6314710B2 (en) 1988-04-01

Family

ID=12147304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2476780A Granted JPS56122353A (en) 1980-02-29 1980-02-29 Pyridinol derivative and its preparation

Country Status (1)

Country Link
JP (1) JPS56122353A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02129116U (en) * 1989-03-31 1990-10-24

Also Published As

Publication number Publication date
JPS6314710B2 (en) 1988-04-01

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