4H-1-benzopyran-4-one derivative or its salt, process for produc

Details 4H-1-benzopyran-4-one derivative or its salt, process for produc 4H-1-benzopyran-4-one derivative or its salt, process for produc

1988-10-07

1990-09-04

Chan, Nicky

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

549403, 549402, 549401, 549400, 549 60, 548953, 548950, 548525, 548336, 548327, 5482664, 5482622, 548256, 548253, 548251, 548248, 548245, 548244, 548243, 548236, 548234, 548230, 548228, 548225, 548214, 548213, 548195, 548194, 548188, 548187, 548184, 548159, 548143, 548136, 548129, 548128, 548127, 546269, 546196, 546167, 546164, 546159, 546148, 546143, 546133, 544405, 544376, 544333, 544322, 544238, 544212, 544180, 544179, 544151, 514444, 514422, 514397, 514383, 514382, 514375, 514374, 514372, 514365, 514364

Patent

active

049545183

ABSTRACT:
This invention relates to a 4H-1-benzopyran-4-one derivative represented by the formula: ##STR1## or a salt thereof, a process for producing the same and a pharmaceutical composition comprising the same as active ingredient.

REFERENCES:
patent: 3661990 (1972-05-01), Harrington
patent: 3689523 (1972-09-01), Trancik et al.
patent: 3840597 (1974-10-01), Moore et al.
patent: 4057641 (1977-11-01), Appleton et al.
patent: 4244960 (1981-01-01), Schroeder et al.
patent: 4411910 (1983-10-01), Schroeder et al.
patent: 4600788 (1986-07-01), Creuzet et al.
patent: 4696948 (1987-09-01), Petzoldt

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