2-Oxo-1,2-(dihydropyridyl)-2H-1-benzopyrans

Details 2-Oxo-1,2-(dihydropyridyl)-2H-1-benzopyrans 2-Oxo-1,2-(dihydropyridyl)-2H-1-benzopyrans

1990-07-20

1993-02-23

Fan, Jane T.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

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

514307, 514299, 514345, 514277, 514278, 546269, 546115, 546116, 546148, 546183, 546112, 546301, 546303, 546290, A61K 3144, C07D40504

Patent

active

051890470

ABSTRACT:
The present invention is directed to compounds of formula (I) and pharmaceutically acceptable salts thereof: ##STR1## wherein Y, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 , a and b are as defined in the Specification, having pharmacological activity, to a process for their preparation, and to their use as pharmaceuticals.

REFERENCES:
patent: 2947755 (1960-08-01), Scudi et al.
patent: 4687779 (1987-08-01), Evans

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