Process for the preparation of 4-hydroxy-2-...

Details Process for the preparation of 4-hydroxy-2-... Process for the preparation of 4-hydroxy-2-...

C - Chemistry, Metallurgy

07

D

260/283, 260/289

C07D 215/22 (2006.01) C07D 215/56 (2006.01) C07D 491/04 (2006.01)

Patent

CA 1105462

Abstract of the Disclosure Disclosed are pharmaceutical compositions comprising 4-hydroxy-2-quinolinone-3-carboxylic acids and their salts, and certain novel compounds of this class, for example 1-allyl- 6,7-dimethoxy-4-hydroxy-2-quinolinone-3-carboxylic acid, of formula Image The compounds are useful in the prophylactic treatment of allergic asthma.

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