(R)-1-isopropyl-3-(((S)-2-phenyl-2-(piperidin-1-yl)propanoyl)oxy)quinuclidin-1-ium bromide

(R)-1-(pentan-3-yl)-3-(((S)-2-phenyl-2-(piperidin-1-yl)propanoyl)oxy)quinuclidin-1-ium bromide

(R)-1-butyl-3-(((S)-2-phenyl-2-(piperidin-1-yl)propanoyl)oxy)quinuclidin-1-ium bromide

(R)-1-(3-cyanopropyl)-3-(((S)-2-phenyl-2-(piperidin-1-yl)propanoyl)oxy)quinuclidin-1-ium bromide

(3R)-1-[2-(4-fluorophenyl)ethyl]-3-{[(2S)-2-phenyl-2-piperidin-1-ylpropanoyl]oxy}-1-azoniabicyclo[2.2.2]octane bromide