Patent ID: 8592423

Claim:
A compound of formula (I) or a pharmaceutically acceptable salt thereof, wherein R 1 is selected from hydrogen, C 1 -C 6 alkyl; C 1 -C 6 alkyl(C 3 -C 8 )cycloalkyl; C 1 -C 6 hydroxyalkyl; CH 2 CN; CH 2 C(O)NH 2 ; C 1 -C 6 arylalkyl; and C 1 -C 6 alkylheterocyclylalkyl; R 2 -R 6 are independently selected from hydrogen, C 1 -C 6 alkoxy; and halo; and R 7 is a heteroaromatic group of formula (II) containing from 2 to 4 nitrogen atoms: wherein: each Y is independently N or CH; and each Z is independently N or C; and wherein the heteroaromatic group may be optionally substituted with one, two, or three substitutents independently selected from C 1 -C 6 alkoxy; C 1 -C 6 alkyl; aryl; cyano; halo; halo(C 1 -C 6 )alkyl; and C 1 -C 6 hydroxyalkyl; and wherein * denotes the point of attachment to the cyclopropyl ring.