The present invention provides a compound of Formula (I): wherein R1 is hydrogen or methyl; and R2 is: or a pharmaceutically acceptable salt thereof, useful for treating pain, including chronic pain, chronic lower back pain, diabetic peripheral neuropathic pain, and osteoarthritis pain.
4-(2,6-DIFLUOROPHENOXY)-6-(TRIFLUOROMETHYL)PYRI ML DIN-2 -AMINE DERIVATIVES AS POTENTIATORS OF TH HMRGX1 RECEPTOR FOR THE TREATMENT OF PAIN