exo-7-[(1S,3S,5R)-(8-aza-bicyclo[3.2.1]oct-3-yl)oxy]-3-furan-2-yl-chromen-2-one hydrochloride

exo-7-[(1S,3S,5R)-(8-aza-bicyclo[3.2.1]oct-3-yl)oxy]-3-phenyl-chromen-2-one hydrochloride

exo-7-[(8-aza-bicyclo[3.2.1]oct-3-yl)oxy]-3-ethyl-chromen-2-one hydrochloride