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AT352722B - PROCESS FOR THE PRODUCTION OF NEW BENZOPYRAN DERIVATIVES - Google Patents

PROCESS FOR THE PRODUCTION OF NEW BENZOPYRAN DERIVATIVES

Info

Publication number
AT352722B
AT352722B AT537078A AT537078A AT352722B AT 352722 B AT352722 B AT 352722B AT 537078 A AT537078 A AT 537078A AT 537078 A AT537078 A AT 537078A AT 352722 B AT352722 B AT 352722B
Authority
AT
Austria
Prior art keywords
production
benzopyran derivatives
new benzopyran
new
derivatives
Prior art date
Application number
AT537078A
Other languages
German (de)
Other versions
ATA537078A (en
Original Assignee
Pfizer
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 Pfizer filed Critical Pfizer
Priority claimed from AT0805978A external-priority patent/AT367809B/en
Publication of ATA537078A publication Critical patent/ATA537078A/en
Application granted granted Critical
Publication of AT352722B publication Critical patent/AT352722B/en

Links

AT537078A 1975-11-03 1978-07-24 PROCESS FOR THE PRODUCTION OF NEW BENZOPYRAN DERIVATIVES AT352722B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US62821075A 1975-11-03 1975-11-03
US73067276A 1976-10-07 1976-10-07
AT0805978A AT367809B (en) 1977-11-14 1978-11-10 COLORING DEVICE

Publications (2)

Publication Number Publication Date
ATA537078A ATA537078A (en) 1979-03-15
AT352722B true AT352722B (en) 1979-10-10

Family

ID=27150930

Family Applications (3)

Application Number Title Priority Date Filing Date
AT537278A AT354445B (en) 1975-11-03 1978-07-24 PROCESS FOR MANUFACTURING NEW DIBENZO (B, D) PYRANE DERIVATIVES
AT537178A AT352124B (en) 1975-11-03 1978-07-24 PROCESS FOR MANUFACTURING NEW BENZOPYRANDERIVATIVES
AT537078A AT352722B (en) 1975-11-03 1978-07-24 PROCESS FOR THE PRODUCTION OF NEW BENZOPYRAN DERIVATIVES

Family Applications Before (2)

Application Number Title Priority Date Filing Date
AT537278A AT354445B (en) 1975-11-03 1978-07-24 PROCESS FOR MANUFACTURING NEW DIBENZO (B, D) PYRANE DERIVATIVES
AT537178A AT352124B (en) 1975-11-03 1978-07-24 PROCESS FOR MANUFACTURING NEW BENZOPYRANDERIVATIVES

Country Status (1)

Country Link
AT (3) AT354445B (en)

Also Published As

Publication number Publication date
AT352124B (en) 1979-09-10
ATA537178A (en) 1979-02-15
AT354445B (en) 1979-01-10
ATA537278A (en) 1979-06-15
ATA537078A (en) 1979-03-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee