JPS5481298A - Preparation of pyridopyrimidinecarboxylic acid derivative - Google Patents

Preparation of pyridopyrimidinecarboxylic acid derivative

Info

Publication number
JPS5481298A
JPS5481298A JP14723277A JP14723277A JPS5481298A JP S5481298 A JPS5481298 A JP S5481298A JP 14723277 A JP14723277 A JP 14723277A JP 14723277 A JP14723277 A JP 14723277A JP S5481298 A JPS5481298 A JP S5481298A
Authority
JP
Japan
Prior art keywords
formula
acid derivative
pyridopyrimidinecarboxylic
preparation
chlorite
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
JP14723277A
Other languages
Japanese (ja)
Inventor
Takumi Matsumura
Hiroshi Kawahara
Yoshitaka Wakita
Tatsuyuki Naritomo
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.)
Daito Koeki KK
Teijin Ltd
Original Assignee
Daito Koeki KK
Teijin 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 Daito Koeki KK, Teijin Ltd filed Critical Daito Koeki KK
Priority to JP14723277A priority Critical patent/JPS5481298A/en
Publication of JPS5481298A publication Critical patent/JPS5481298A/en
Pending legal-status Critical Current

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  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

PURPOSE: To obtain the title compound having antibacterial actions in a high yield, by oxidizing the formyl group at the 6-position alone of an aldehyde selectively with a chlorite in the presence of sulfamic acid.
CONSTITUTION: One mole of an aldehyde of formula I: (R1 is lower alkyl group; X is tertiary amino group of formula II or III). is oxidized with an equimolar amount to 10 moles, preferably to 5 moles of a chlorite, e.g. sodium, potassium chlorites, etc, in the presence of sulfamic acid at 5W50°C to form a pyridopyrimidine carboxylic acid derivative of formula IV.
COPYRIGHT: (C)1979,JPO&Japio
JP14723277A 1977-12-09 1977-12-09 Preparation of pyridopyrimidinecarboxylic acid derivative Pending JPS5481298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14723277A JPS5481298A (en) 1977-12-09 1977-12-09 Preparation of pyridopyrimidinecarboxylic acid derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14723277A JPS5481298A (en) 1977-12-09 1977-12-09 Preparation of pyridopyrimidinecarboxylic acid derivative

Publications (1)

Publication Number Publication Date
JPS5481298A true JPS5481298A (en) 1979-06-28

Family

ID=15425551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14723277A Pending JPS5481298A (en) 1977-12-09 1977-12-09 Preparation of pyridopyrimidinecarboxylic acid derivative

Country Status (1)

Country Link
JP (1) JPS5481298A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936699A (en) * 1972-08-14 1974-04-05
JPS49124098A (en) * 1973-03-06 1974-11-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4936699A (en) * 1972-08-14 1974-04-05
JPS49124098A (en) * 1973-03-06 1974-11-27

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