PERIPHERAL OPIOID RECEPTOR ANTAGONISTS AND USES THEREOF
申请人:WYETH, LLC
公开号:US20140142132A1
公开(公告)日:2014-05-22
The present invention provides a compound of formula I:
wherein R
1
, R
2
, R
2′
and X
−
are as defined and described herein, methods of manufacture thereof and compositions thereof, useful for example as peripheral mu opioid receptor antagonists in treatment of side effects of opioid administration.