Ester derivatives of quinolopyran-4-one-2-carboxylic acids and a

Details Ester derivatives of quinolopyran-4-one-2-carboxylic acids and a Ester derivatives of quinolopyran-4-one-2-carboxylic acids and a

1979-05-30

1981-11-03

Rotman, Alan L.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

546 92, C07D49104, A61K 3147

Patent

active

042986109

ABSTRACT:
Novel ester derivatives of quinolopyran-4-one-2-carboxylic acids and the tautomers thereof are provided, the ester groups being specified and restricted. These novel compounds are especially useful as antiallergic antasthmatics or remedies for asthma, and can be administered orally with long duration of action.

REFERENCES:
patent: 4086349 (1978-04-01), Morinaka

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