Patent ID: 7868030

Claim:
A compound of formula (I): wherein R 1 is alkyl, cycloalkyl, halogen, haloalkyl, heterocyclyl, heterocyclylalkyl, aralkyl, —S—R 4 , or —O—R 4 ; R 2 is hydrogen, alkyl, cycloalkyl, halogen, haloalkyl, alkoxyalkyl, hydroxyalkyl or alkoxycarbonyl; or R 1 and R 2 together with the carbon atoms to which they are attached form aryl; R 3 is phenyl, thiazolyl, thiophenyl, pyridinyl, pyrimidinyl, pyradizinyl, oxazoyl or isoxazoyl, wherein phenyl, thiazolyl, thiophenyl, pyridinyl, pyrimidinyl, pyradizinyl, oxazoyl and isoxazoyl are optionally substituted with one to three substituents independently selected from alkyl, cycloalkyl, alkoxy, hydroxy, halogen, haloalkyl, haloalkoxy, aryl, aryloxy, heterocyclyl, heterocyclyloxy, amino, nitro, alkoxyalkyl, hydroxyalkyl, alkoxyalkoxy and hydroxyalkoxy; R 4 is alkyl, cycloalkyl, heterocyclylalkyl, aralkyl or haloalkyl; or a pharmaceutically acceptable salt or ester thereof, with the proviso that N-((2-benzothiazolylamino)carbonyl)-4-methyl-benzenesulfonamide; N-((2-benzothiazolylamino)carbonyl)-2-methyl-benzenesulfonamide; N-(((5,6-dimethyl-2-benzothiazolyl)amino)carbonyl)-2-methyl-benzenesulfonamide; N-(((4-chloro-2-benzothiazolyl)amino)carbonyl)-2-methyl-benzenesulfonamide; 2-methyl-N-(((4-methyl-2-thiazolyl)amino)carbonyl)-benzenesulfonamide; N-(((6-ethoxy-2-benzothiazolyl)amino)carbonyl)-2-methyl-benzenesulfonamide; and 4-methyl-N-(((4-methyl-2-thiazolyl)amino)carbonyl)-benzenesulfonamide are excluded.