| abstract |
The present invention provides a novel substituted piperidine compound, a process for producing the same, and a pharmaceutical composition containing the compound, and a promoter for memory and cognition in the treatment of cognitive impairment associated with a pathological condition of the central nervous system containing the compound. The following formula (I), [Wherein R 1 represents a hydrogen atom or a methyl group, and R 2 represents a bromine atom, a fluorine atom or a trifluoromethyl group], and a pharmaceutical composition containing the compound. [Selection figure] None |