Patent ID: 8178689

Claim:
A compound according to formula I, wherein: R 1 and R 2 are each independently selected from the group consisting of H, Cl, Br, F and OCH 3 ; R 3 is selected from the group consisting of lower alkyl, cycloalkyl, and heterocycloalkyl; and R 4 is an unsubstituted or substituted heteroaryl connected by a ring carbon atom to the adjacent amine group, with at least one heteroatom being nitrogen which is adjacent to the connecting ring carbon atom, said substituted heteroaryl being substituted at a position other than adjacent to said connecting carbon atom independently with halogen, lower alkyl, ester, cyano, acid, cycloalkyl, aryl, —CH 2 -aryl, heterocycloalkyl or —CH 2 -heterocycloalkyl; or a pharmaceutically acceptable salt thereof.