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Last Updated: December 12, 2025

Claims for Patent: 3,806,534

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Summary for Patent: 3,806,534

Title:	Sulphamyl-benzoic acid derivatives
Abstract:	THIS INVENTION RELATES TO NEW, THERAPEUTICALLY ACTIVE COMPOUNDS OF THE GENERAL FORMULA 1-(R4-N(-R5)-),2-A,3-(R3-N(-R6)-SO2-),5-(HOOC-)BENZENE IN WHICH A REPRESENTS ONE OF THEGROUPINGS R1-N(-R2)-, R2-O-, R2-S-, R2-OS, AND R2-O2S-, R1, R2, R3, AND R4 EACH REPRESENTS HYDROGEN, AN ALIPHATIC RADICAL, A CYCLOALIPHATIC RADICAL, OR AN AROMATICALLY, CYCLOALIPHATICALLY, OR HETEROCYCLICALLY SUBSTITUTED ALIPHATIC RADICAL, IN ADDITION TO WHICH R2 AND R3 MAY EACH REPRESENT AN AROMATIC OR HETEROCYCLIC RADICAL, AND WHEN A IS R1-N(-R2)-, R1 AND R2 MAY IRON PENTACARBONYL TOGETHER WITH THE DIENE IN A SOLVENT AT TEMPERATURES WITHIN THE RANGE TROGEN ATOMS, SULPHUR ATOMS, OR OXYGEN ATOMS IN ADDITION TO THE NITROGEN ATOM LINKED TO R1 AND R2; R5 IS HYDROGEN OR LOWER ALKYL; AND R6 IS HYDROGEN OR LOWER ALKYL OR ACYL; TO SALTS, ESTERS, AND AMIDES OF THE SAID COMPOUNDS; AND TO METHODS FOR THE PRODUCTION OF THE COMPOUNDS.
Inventor(s):	P Feit
Assignee:	Leo Pharma AS
Application Number:	US00887409A
Patent Claims:

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