Compounds of Formula I are useful for the treatment of anxiety disorders such as generalized anxiety disorder (GAD), panic attack, post traumatic stress disorder (PTSD), obsessive compulsive disorder (OCD) and social phobias. wherein: A is chosen from: aryl or heteroaryl, A being optionally substituted with up to 5 independently-selected groups R8 R1 is chosen from: alkyl or haloalkyl R2 is chosen from: H, C(O)R6, C(O)OR6, SO2R6 or C(O)NR6R7 R3, R4 and R5 are independently chosen from: H or alkyl R6 and R7 are independently chosen from: H or alkyl and R8 is chosen from: OH, CN, halo, alkyl, alkoxy, haloalkyl, haloalkoxy, C(O)R6, C(O)OR6, SO2R6 or C(O)NR6R7.