Patent ID: 8324248

Claim:
A compound of formula Ic wherein Ar 1 is a six-membered heteroaryl; R 1 is hydrogen, halogen, lower alkyl, lower alkoxy or lower alkyl substituted by halogen; R 2 is hydrogen, halogen, cyano, lower alkyl, or lower alkyl substituted by halogen; R 3 is hydrogen or lower alkyl; Y is —N(R 7′ )—; R 7′ is a 6-membered heteroaryl group, optionally substituted by cyano or is C(O)-cycloalkyl, wherein the cycloalkyl group is optionally substituted by lower alkyl; R 6 is hydrogen; p is 1; o is 1; t is 1; and u is 1; or a pharmaceutically active salt, a racemic mixture, an enantiomer, an optical isomer or a tautomeric form thereof.