Patent ID: 7964645

Claim:
A compound of formula I wherein is a 5 or 6-membered aromatic ring; R 1 is cycloalkyl or is aryl, which is unsubstituted or substituted by 1 to 3 substituents selected from the group consisting of halogen, lower alkyl, lower alkyl substituted by halogen, lower alkoxy, lower alkoxy substituted by halogen, —C(O)-lower alkyl, —S(O) 2 -lower alkyl, nitro and cyano; R 2 is hydrogen or lower alkyl; R 3 is hydrogen or lower alkyl; R 4 is halogen, lower alkyl substituted by halogen, lower alkoxy substituted by halogen or nitro; R 5 is hydrogen, halogen, or lower alkyl substituted by halogen; X is a bond, —(CH 2 ) m —, —CH 2 O— or —CH 2 NH—; The dotted line denotes an optional bond; n is 1 or 2; and m is 1, 2 or 3; or a pharmaceutically acceptable acid addition salt thereof with the proviso that the dotted line is not a bond.