1 V38 [(1r,5s)-8-[(2r)-2-hydroxy-2-phenyl-ethyl]-8-methyl-8-azoniabicyclo[3.2.1]octan-3-yl] benzoate 1.000 2 V11 [(1s,5r)-8-[(2r)-2-hydroxy-2-phenyl-ethyl]-8-azabicyclo[3.2.1]octan-3-yl] benzoate 0.963 3 V37 [(1r,5s)-8-phenethyl-8-azabicyclo[3.2.1]octan-3-yl] benzoate 0.926