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US 4,730,063 AGranted
Alkali metal 2,5-dihydro-3-ethoxycarbonyl-2-[(substituted phenyl)amino]-4-furanyloxides
AssigneePennwalt Corporation
InventorsVassil S. Georgiev, Clyde R. Kinsolving, Robert A. Mack
Life of this patent
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Abstract
Alkali metal 2,5-dihydro-3-ethoxycarbonyl-2-[(substituted phenyl)amino]-4-furanyloxides are useful as anti-allergy agents.
Claims7
A compound having the formula:
- ##STR3## where;
- n=1 or 2, M is an alkali or alkaline earth metal, R is hydrogen, lower alkyl, lower alkoxy, nitro, halogen or acetyl, and R.sup.1 is lower alkyl.
Dependencies are inferred from the claim text.