N-Piperidinocarbonyl-N-tert.-butyl-hydroxylamin

N-tert-butyl-N-hydroxybenzamide

N-(3-Phenylpropanoyl)-N-tert-butylhydroxylamin

N-(1,1-dimethylethyl)-N-hydroxy[1,1'-biphenylyl]-4-carboxamide

N-hydroxy-N-(1,1-dimethylethyl)-4-nitrobenzamide