Patent ID: 8350037

Claim:
A compound of formula (I), or a pharmaceutically acceptable salt or N-oxide thereof: wherein R 1 is hydrogen, halogen, or C 1-6 alkyl; R 2 is halogen or C 1-6 alkyl; R 3 is —SO 2 NR b R c ; and R b and R c , when taken together with the nitrogen atom to which they are both attached, form a heterocyclic ring selected from optionally substituted azetidinyl, optionally substituted pyrrolidinyl, optionally substituted piperidinyl, optionally substituted morpholinyl, optionally substituted thiomorpholinyl, optionally substituted piperazinyl, optionally substituted homopiperidinyl, optionally substituted homomorpholinyl and optionally substituted homopiperazinyl; wherein the one or more optional substituents are each independently selected from the group consisting of: C 1-6 alkyl, hydroxy, hydroxy(C 1-6 )alkyl, C 1-6 alkoxy, C 1-6 alkoxy(C 1-6 )alkyl, amino(C 1-6 )alkyl, (amino)(hydroxy)(C 1-6 )alkyl, halogen, oxo, C 2-6 alkylcarbonyl, carboxy, carboxy(C 1-6 )alkyl, C 2-6 alkoxycarbonyl, C 2-6 alkoxycarbonyl(C 1-6 )alkyl, di(C 1-6 )alkyl-hydrazinylcarbonyl, amino, C 1-6 alkylamino, di(C 1-6 )alkylamino, C 2-6 alkylcarbonylamino, C 2-6 alkoxycarbonylamino, C 2-6 alkoxycarbonylamino (C 1-6 )alkyl, C 2-6 alkoxycarbonyl-(C 1-6 )alkylamino(C 1-6 )alkyl, aminocarbonylamino, aminocarbonyl, C 1-6 alkylamino-carbonyl, di(C 1-6 )alkylaminocarbonyl, aminosulfonyl, C 1-6 alkylsulfonyl and C 1-6 alkylaminocarbonyl(C 1-6 )alkyl.