(8alpha,9R)-10,11-dihydro-6'-[(6-methylheptyl)oxy]cinchonan-9-ol dihydrochloride

(R)-[(2S,4S,5R)-5-ethylquinuclidin-2-yl]-[6-(6-methylheptoxy)-4-quinolyl]methanol dihydrochloride

(R)-[(4S,5R,7S)-5-ethyl-1-azabicyclo[2.2.2]octan-7-yl]-[6-(6-methylheptoxy)quinolin-4-yl]methanol dihydrochloride