1 RBE 3-(benzoyloxy)-8-aza-bicyclo[3.2.1]octane-2-carboxylic acid 1.000 2 BCG 3-(benzoyloxy)-8-methyl-8-azabicyclo[3.2.1]octane-2-carboxylic acid 0.952 3 OBE 3-(3-hydroxy-benzoyloxy)-8-methyl-8-aza-bicyclo[3.2.1]octane-2-carboxylic acid 0.909 4 V63 [(1r,5s)-8-azabicyclo[3.2.1]octan-3-yl] benzoate 0.850 5 COC Cocaine 0.826 6 WQO (1r,2s)-1-[(4-amino-2-hydroxybenzoyl)oxy]-2,3-dihydro-1h-indene-2-carboxylic acid 0.720