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Last Updated: December 12, 2025

Claims for Patent: 3,777,033

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Summary for Patent: 3,777,033

Title:	Bis-chromonyl pharmaceutical composi-tion and methods
Abstract:	PHARMACEUTICAL COMPOSITIONS COMPRISING A PHARMACEUTICAL CARRIER TOGETHER WITH A BIS-CHROMONYL COMPOUND SELECTED FROM COMPOUNDS OF THE FORMULA ((2-(HOOC-),4-(O=),R1,R2,R3-4H-CHROMENYL)-O-X-O-),4-(O=), 2-(HOOC-),R4,R5,R6-4H-CHROMENE AND FUNCTIONAL DERIVATIVES THEREOF, IN WHICH R1, R2, R3, R4, R5 AND R6 ARE EACH SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, HALOGEN, HYDROXY, LOWER ALKYL, LOWER ALKOXY, HYDROXYLOWERALKYL, HALOLOWERALKYL, HYDROXYLOERALKOXY, LOWERALOXYLOWERALKOXY AND CARBOXYLOWERALKOXY; AND X IS SLECTED FROM THE GROUP CONSISTING OF SATURATED AND UNSTURATED, STRAIGHT AND BRANCHES HYDROCARBON CHAINS WHICH MAY BE INTERRUPTED BY AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF BENZENE RINGS, OXYGENCONTAINING HETEROCYLIC RINGS, OXYGEN ATOMS AND CARBONYL GROUPS, AND WHICH MAY BE SUBSTITUTED BY AT LEAST ONE MEMBER, SELECTED FROM THE GROUP CONSISTING OF HALOGEN ATOMS, HYDROXY GROUPS AND LOWER ALOXY GROUPS, ARE USEFUL IN INHIBITING ANTIGEN-ANTIBODY REACTIONS.
Inventor(s):	C Fitzmaurice, T Lee
Assignee:	Fisons Pharmaceuticals Ltd
Application Number:	US00199360A
Patent Claims:

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