ácidos arilsulfonamido substituìdos por alfa como inibidores de tnf-alfa hidroxámicos, alfa- de matriz de metaloproteinase, bem como composição farmacêutica compreendendo os mesmos

Particularly the invention relates to the compounds of formula I (I) wherein Ar represents carbocyclic aryl, heterocyclic aryl or biaryl; R1 represents lower alkyl, cycloalkyl, aryl-lower alkyl, lower alkoxy-lower alkyl, aryl, cycloalkyl-lower alkyl, halo-lower alkyl; R2 represents hydrogen or lower alkyl; R3 and R4 represent independently hydrogen, lower alkyl, lower alkoxy, halo, hydroxy, acyloxy, lower alkoxy-lower alkoxy, trifluoromethyl or cyano; or R3 and R4 together represent lower allylenedioxy; n represents an integer from 1 to 5; pharmaceutically acceptable prodrug derivatives; and pharmaceutically acceptable salts thereof; methods for preparation thereof; pharmaceutical compositions comprising said compounds; and a method of inhibiting TNF-alpha activity and matrix-degrading metalloproteinases in mammals using such compounds.