The invention provides novel 8-azabicyclo[3.2.1]octane compounds of formula (I):
where the variables are defined in the specification, or a pharmaceutically-acceptable salt thereof, that are antagonists at the mu opioid receptor. The invention also provides pharmaceutical compositions comprising such compounds, methods of using such compounds to treat conditions associated with mu opioid receptor activity, and processes and intermediates useful for preparing such compounds.
                            该发明提供了式(I)的新型8-氮杂
双环[3.2.1]辛烷化合物,其中变量在说明书中定义,或其药学上可接受的盐,它们是μ-阿片受体拮抗剂。该发明还提供了包含这种化合物的制药组合物,使用这种化合物治疗与μ-阿片受体活性相关的疾病的方法,以及用于制备这种化合物的过程和中间体。