Patent ID: 8168673

Claim:
A compound of general formula (I) wherein W is chloro or fluoro; Z is a group SO 2 R 1 ; wherein R 1 is —C 3 -C 8 cycloalkyl or heterocyclyl either of which is optionally substituted with one or more substituents chosen from halo, —CN, —C 1 -C 6 alkyl, —SOR 3 , —SO 2 R 3 , —SO 2 N(R 2 ) 2 , —N(R 2 ) 2 , —NR 2 C(O)R 3 , —CO 2 R 2 , —CONR 2 R 3 , —NO 2 , —OR 2 , —SR 2 , —O(CH 2 ) p OR 2 , or —O(CH 2 ) p O(CH 2 ) q OR 2 wherein each R 2 is independently hydrogen, —C 1 -C 6 alkyl, —C 3 -C 8 cycloalkyl, aryl or heteroaryl; each R 3 is independently, —C 1 -C 6 alkyl, —C 3 -C 8 cycloalkyl, aryl or heteroaryl; and p and q are each independently an integer from 1 to 3; or a pharmaceutically acceptable salt thereof.