Patent ID: 7989470

Claim:
An 8-aza-bicyclo[3,2,1]octane chemical compound of Formula I: or any of its stereoisomers or any mixture of its stereoisomers, or a pharmaceutically acceptable salt thereof; wherein R a represents —(R c ) n —C(═O)R′, —(R c ) n —C(═O)OR′, —(R c ) n —C(═S)NR′R″ or —(R c ) n —C(═O)NR′R″; wherein R c represents alkyl; n is 0 or 1; R′ and R″ independent of each other represent hydrogen, alkyl, or aryl; X represents —O—; R b represents phenyl, pyridyl or naphthyl, which phenyl, pyridyl or naphthyl is substituted with one or more substituents independently selected from the group consisting of: chloro, bromo and alkoxy.