公开(公告)号：US11365194B2

公开(公告)日：2022-06-21

申请号：US16650133

申请日：2018-09-27

Applicant: KAGOSHIMA UNIVERSITY ,  SHOWA UNIVERSITY

Inventor： Takashi Kurihara ,  Ichiro Takasaki ,  Naoki Toyooka ,  Hiroaki Gouda

IPC: C07D471/04 ,  C07D403/14

Abstract: This invention relates to an analgesic drug comprising a compound represented by the following formula (I) or (II), wherein R1 is a C1-6-alkoxy group or a C1-6-haloalkoxy group; R2 is a hydrogen atom; and R is an indazolyl group substituted with a halogen atom; a substituted or unsubstituted phenyl group; a pyrazolyl group; or a substituted or unsubstituted aralkyl group; or a salt thereof, or a solvate thereof.