Patent ID: 7226940

Claim:
A compound of the formula: wherein: R 1 and R 2 are independently selected from the group consisting of a C 1 –C 12 alkyl, a C 1 –C 12 substituted alkyl or a hydroxyl; R 3 and R 4 are independently or together hydrogen, halogen, alkyl, substituted alkyl, haloalkyl, alkoxy, substituted alkoxy, amino, mono-substituted amino, di-substituted amino or haloalkoxy; Ar is Formula (II), (III), (IV) or (V): wherein R 8 , R 9 and R 10 are independently or together hydrogen, alkyl, substituted alkyl, haloalkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, halogen, cyano, nitro, hydroxyl, acyloxy, amino, mono-substituted amino, di-substituted amino, alkylamide, alkylsulfonamide, arylsulfonamide, alkylurea, arylurea, alkylcarbamate, arylcarbamate, alkoxy, substituted alkoxy, haloalkoxy, thioalkyl, thiohaloalkyl, carboxy, carboalkoxy, alkylcarboxamide, substituted alkylcarboxamide, dialkylcarboxamide or substituted dialkylcarboxamide; R 5 is hydrogen, or alkyl; - - - - - represents a bond present or absent; and W, X, Y and Z together form a 2,4-thiazolidinedione, 2-thioxo-4-thiazolidinedione, isoxazolidinedione, 2,4-imidazolidinedione or 2-thioxo-4-imidazolidinedione residue; or a pharmaceutically acceptable salt thereof.