Patent ID: 7414059

Claim:
A compound of the formula II: or a pharmaceutically acceptable salt thereof, wherein: X is 3-methylpyrazol-1-yl, 3,5- dimethylpyrazol-1-yl, 4-chloro-3,5-dimethylpyrazol-1-yl, 3-propylpyrazol-1-yl, 3- butyl-4-propylpyrazol-1-yl, 2-methylimidazol-1-yl, 4-methylimidazol-1-yl or 4- phenylimidazol-1-yl; R a is hydrogen or alkyl; Z is alkyl; R 1 is hydrogen, alkyl, alkoxy, haloalkyl, halo, hydroxy, cyano, nitro, —NR c R d , —C(O)NR c R d , alkylcarbonyl or alkylsulfonyl wherein R c and R d each independently is hydrogen or alkyl; m is 3; and R 2 is halo.