Patent ID: 7524958

Claim:
A 9-aza-bicyclo[3.3.1]nonane derivative of the Formula I: any of its steric isomers or any mixture of its steric isomers, or a pharmaceutically acceptable salt thereof, wherein R a represents hydrogen or alkyl; which alkyl is optionally substituted with one or more substituents independently selected from the group consisting of: halo, trifluoromethyl, trifluoromethoxy, cyano, hydroxy, amino, nitro, alkoxy, cycloalkoxy, alkyl, cycloalkyl, cycloalkylalkyl, alkenyl and alkynyl; X represents —O—; R b represents a phenyl group, which phenyl group is substituted twice with halo; or R b represents a pyridyl group, which pyridyl group is optionally substituted with one or more substituents independently selected from the group consisting of halo, trifluoromethyl, trifluoromethoxy, cyano, and alkoxy.