[1-[(dimethylamino)methyl]cyclobutyl]methyl 2-hydroxy-2,2-diphenylacetate

[1-[(dimethylamino)methyl]cyclohexyl]methyl 2-hydroxy-2,2-diphenylacetate

[2-[(dimethylamino)methyl]-2-ethylbutyl] 2-hydroxy-2,2-diphenylacetate

2-methyl-1,1-diphenylpropane-1,2-diol

α,α-diphenyl-β-picrylhydrazyl radical