Patent ID: 7541465

Claim:
A compound of Formula II: or a pharmaceutically acceptable salt thereof, wherein: R 1 , R 2 , R 3 and R 4 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl; R 5 is hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl; R 6 and R 7 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl; or R 6 and R 7 together with the nitrogen atom to which they are attached form a heterocycle selected from the group consisting of piperidine, piperazine and morpholine; A 1 is aryl, and A 2 is quinolyl or piperidinyl, any of which is optionally substituted by halo, haloalkyl, hydroxyalkyl, aminoalkyl, nitro, alkyl, alkoxy or amino; X is one of O, S, NR 8 , CH 2 , NR 8 C(O), C(O)NR 8 , SO, SO 2 or a covalent bond, where R 8 is hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl; and n is 0, 1, 2 or 3.