Patent ID: 9745275
Date: 2017-08-29
CPC Classifications: A61P,C07D

Claim:
1. A method for reducing pain, suppressing the exacerbation of pain, or treating pain, wherein the pain is selected from an acute pain, an inflammatory pain, a visceralgia, a breakthrough pain, a nociceptive pain, a neuropathic pain, and a chronic pain, the method comprising administering a pharmaceutical composition containing as an active ingredient a compound of formula II wherein X 1 is halogen or a substituted or unsubstituted methyl group, Y 1 is halogen or a substituted or unsubstituted straight-chain or branched-chain or cyclic alkyl group having 1 to 6 carbon atoms, and Z 1 and W 1 each independently are hydrogen, halogen, hydroxyl, a straight-chain or branched-chain or cyclic alkoxy group having 1 to 6 carbon atoms, or a substituted or unsubstituted straight-chain or branched-chain or cyclic alkyl group having 1 to 6 carbon atoms, or a pharmaceutically permissible salt thereof, to a target that requires the administration of the pharmaceutical composition, wherein the target is a pain patient.