N-(β-p-nitrophenylethyl)-3-chloroquinuclidinium bromide

1-(4-nitrophenethyl)-3-oxoquinuclidin-1-ium bromide

mono(1-methyl-4-(4-nitrophenethyl)-1,4-diazabicyclo[2.2.2]octane-1,4-diium) monoiodide

(2-(p-nitrophenyl)ethyl-β,β-d2)trimethylammonium perchlorate

3-hydroxy-1-(4-nitrophenethyl)quinuclidin-1-ium perchlorate