HU179595B - Process for producing 1-azaxantone-3-carboxylic acid derivatives - Google Patents

Process for producing 1-azaxantone-3-carboxylic acid derivatives

Info

Publication number
HU179595B
HU179595B HUTA001477A HU179595B HU 179595 B HU179595 B HU 179595B HU TA001477 A HUTA001477 A HU TA001477A HU 179595 B HU179595 B HU 179595B
Authority
HU
Hungary
Prior art keywords
azaxantone
producing
carboxylic acid
acid derivatives
derivatives
Prior art date
Application number
Other languages
Hungarian (hu)
Inventor
Akira Nohara
Hirosada Sugihara
Kiyoshi Ukawa
Original Assignee
Takeda Chemical Industries 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
Priority claimed from JP2565477A external-priority patent/JPS53111096A/en
Priority claimed from JP15389877A external-priority patent/JPS6034555B2/en
Application filed by Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Publication of HU179595B publication Critical patent/HU179595B/en

Links

HUTA001477 1977-03-08 1978-03-07 Process for producing 1-azaxantone-3-carboxylic acid derivatives HU179595B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2565477A JPS53111096A (en) 1977-03-08 1977-03-08 1-azaxanthone-3-carboxylic acid derivative and its preparation
JP15389877A JPS6034555B2 (en) 1977-12-20 1977-12-20 Method for producing 1-azaxanthone derivative

Publications (1)

Publication Number Publication Date
HU179595B true HU179595B (en) 1982-11-29

Family

ID=26363298

Family Applications (1)

Application Number Title Priority Date Filing Date
HUTA001477 HU179595B (en) 1977-03-08 1978-03-07 Process for producing 1-azaxantone-3-carboxylic acid derivatives

Country Status (2)

Country Link
HU (1) HU179595B (en)
SU (1) SU812178A3 (en)

Also Published As

Publication number Publication date
SU812178A3 (en) 1981-03-07

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628