Patent ID: 7144881

Claim:
A compound of Formula I or a pharmaceutically acceptable salt thereof wherein R is C 1-4 alkyl, CF 3 or hydroxymethyl; R 1 and R 2 are each independently hydrogen, C 1-4 alkyl, halogen or morpholin-4-yl; R 4 is selected from the group consisting of optionally substituted morpholin-4-yl, pyridinyl, pyrimidinyl, piperazinyl, and pyrazinyl, in which said substituent is independently selected from the group consisting of C 1-4 alkyl, dimethylamino, hydroxymethyl, chloro and fluoro; R 5 is hydrogen or fluoro; or R 4 and R 5 taken together are —CH═CH—CH═CH— or —CH 2 CH 2 O—; and R 3 , R 6 and R 7 are each independently selected from hydrogen or fluoro.