(5S)-spiro[1,3-oxazolidine-5,8'-1-azabicyclo[2.2.2]octane]-2-one
(5S)-spiro[oxazolidine-5,3'-quinuclidine]-2-one
(5S)-2-spiro[oxazolidine-5,3'-quinuclidine]one
AR-R17779
AR-R13489