Patent ID: 7091210

Claim:
A method of treating or ameliorating pain in a mammal, comprising administering to a mammal in need of such treatment an effective amount of a compound having the 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 , R 6 and R 7 are independently hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl, haloalkyl, aryl, aminoalkyl, hydroxyalkyl, alkoxyalkyl or carboxyalkyl; A 1 is pyridyl, and A 2 is selected from the group consisting of pyridyl, pyrimidinyl, piperidinyl and quinolinyl, wherein A 1 and A 2 are independently optionally substituted with one or more substituents selected from the group consisting of halo, haloalkyl, aryl, cycloalkyl, alkyl, alkenyl, alkynyl, arylalkyl, arylalkenyl, arylalkynyl, cycloalkylalkyl, hydroxyalkyl, aminoalkyl, carboxyalkyl, alkoxyalkyl, nitro, amino, ureido, cyano, alkanoylamino, hydroxy, thiol, alkanoyloxy, azido, alkoxy, carboxy, aminocarbonyl, and alkylthiol; X is O or S; and n is 0, 1, 2 or 3.