申请人:REGENTS OF THE UNIVERSITY OF MINNESOTA
公开号:US20190330157A1
公开(公告)日:2019-10-31
The invention provides methods for producing analgesia in an animal comprising administering to the animal a compound of the formula Ia′, Ib′, Ic′, and Id′:
and pharmaceutically acceptable salts thereof, wherein the variables A, R
6
, R
7
, R
8
, R
9
, R
x
, L, X, Y, and Z have the meaning as described herein.