申请人:THE KITASATO INSTITUTE
公开号:US20160122349A1
公开(公告)日:2016-05-05
The present invention relates to a morphinan derivative represented by the following general formula (I), wherein R
1
represents hydrogen, C
1-6
alkyl, C
6-10
aryl, etc., R
2
and R
3
, which are the same or different, represent hydrogen, hydroxy, etc., R
4
and R
5
represent hydrogen, C
1-6
alkyl, etc., R
6
represents hydrogen, hydroxy, C
1-6
alkyl, etc., X represents O or CH
2
, Y represents C═O, C(═O)O, etc., and m and n, which are the same or different, represent an integer of 0 to 2 (m and n are not 0 at the same time), a tautomer or stereoisomer of the compound, or a pharmaceutically acceptable salt thereof, or a solvate thereof, as well as an analgesic, antianxiety drug, etc. containing the same as an active ingredient.