Patent ID: 7511055

Claim:
A compound of formula I wherein R 1 is hydrogen, halogen, cyano, lower alkoxy, lower alkyl, lower alkyl substituted by halogen, cycloalkyl, â€”(CH 2 ) n â€”O-lower alkyl, or â€”C(O)Râ€² wherein Râ€² is lower alkyl, lower alkoxy or NR 2 ; R is hydrogen or lower alkyl; R 2 is aryl or is 5- or 6-membered heteroaryl selected from the group consisting of imidazolyl, isoxazolyl, pyrazolyl, pyridinyl, thiadiazolyl, and thiazolyl; R 3 is hydrogen, OR, NR 2 , lower alkyl, cycloalkyl, aryl, heterocycloalkyl, 5- or 6-membered heteroaryl, C(O)NR 2 , lower alkyl substituted by halogen, or â€”C(O)Râ€² wherein Râ€² is lower alkyl, lower alkoxy or NR 2 ; wherein the aryl, cycloalkyl, heterocycloalkyl or 5- or 6-membered heteroaryl groups for R 2 and R 3 are unsusbtituted or substituted by halogen, cyano, lower alkyl optionally substituted by one or more halogen atoms, lower alkoxy, S(O) 2 -alkyl, S(O)-alkyl, or â€”C(O)Râ€² wherein Râ€² is lower alkyl, lower alkoxy or NR 2 ; and n is 0, 1 or 2; or a pharmaceutically acceptable salt thereof.