1 BS1 (3-exo)-3-(10,11-dihydro-5h-dibenzo[a,D][7]annulen-5-yloxy)-8,8-dimethyl-8-azoniabicyclo[3.2.1]octane 1.000 2 BS2 (3-endo,8-anti)-8-benzyl-3-(10,11-dihydro-5h-dibenzo[a,D][7]annulen-5-yloxy)-8-azoniabicyclo[3.2.1]octane 0.781