| abstract |
This invention provides a method of treating pain in a mammal that includes administering to a mammal in need of such treatment a pain treating effective amount of a compound of the formula (I): or a pharmaceutically acceptable salt thereof, wherein each of R1, R2, R3, R4, R5, R6, n, and m is as defined and described herein. The present invention also provides pharmaceutical compositions for treating pain containing a pain treating effective amount of a compound of formula (I). |