KR780000198B1 - Process for production of 2-carboxy-4-oxo 4h,1oh-(2)-benzopyrano-(4,3g)-(1)-benzopyranes and their salts - Google Patents

Process for production of 2-carboxy-4-oxo 4h,1oh-(2)-benzopyrano-(4,3g)-(1)-benzopyranes and their salts

Info

Publication number
KR780000198B1
KR780000198B1 KR7301438A KR730001438A KR780000198B1 KR 780000198 B1 KR780000198 B1 KR 780000198B1 KR 7301438 A KR7301438 A KR 7301438A KR 730001438 A KR730001438 A KR 730001438A KR 780000198 B1 KR780000198 B1 KR 780000198B1
Authority
KR
South Korea
Prior art keywords
benzopyranes
benzopyrano
oxo
carboxy
salts
Prior art date
Application number
KR7301438A
Other languages
Korean (ko)
Inventor
J Devlin
Brian Stewart Patric
K Freter
Original Assignee
Boehringer Sohn Ingelheim
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 Boehringer Sohn Ingelheim filed Critical Boehringer Sohn Ingelheim
Priority to KR7301438A priority Critical patent/KR780000198B1/en
Priority to KR7801103A priority patent/KR780000237B1/en
Application granted granted Critical
Publication of KR780000198B1 publication Critical patent/KR780000198B1/en

Links

KR7301438A 1973-08-29 1973-08-29 Process for production of 2-carboxy-4-oxo 4h,1oh-(2)-benzopyrano-(4,3g)-(1)-benzopyranes and their salts KR780000198B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR7301438A KR780000198B1 (en) 1973-08-29 1973-08-29 Process for production of 2-carboxy-4-oxo 4h,1oh-(2)-benzopyrano-(4,3g)-(1)-benzopyranes and their salts
KR7801103A KR780000237B1 (en) 1973-08-29 1978-04-15 Preparation of 2-carboxy-4-oxo-4h.10h-(2-)-benzopyrano-(4.3g)-(1)-benzopyranes and the salts thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR7301438A KR780000198B1 (en) 1973-08-29 1973-08-29 Process for production of 2-carboxy-4-oxo 4h,1oh-(2)-benzopyrano-(4,3g)-(1)-benzopyranes and their salts

Publications (1)

Publication Number Publication Date
KR780000198B1 true KR780000198B1 (en) 1978-05-26

Family

ID=19198808

Family Applications (1)

Application Number Title Priority Date Filing Date
KR7301438A KR780000198B1 (en) 1973-08-29 1973-08-29 Process for production of 2-carboxy-4-oxo 4h,1oh-(2)-benzopyrano-(4,3g)-(1)-benzopyranes and their salts

Country Status (1)

Country Link
KR (1) KR780000198B1 (en)

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