L-tert-leucinamide

(S)-N-benzyl-N-(1-cyano-2,2-dimethylpropyl)acetamide

(S)-2-(N-benzylacetamido)-3,3-dimethylbutanoic acid

N-benzyl-2,2-dimethylpropan-1-imine

(5R)-3-tert-butyl-5-phenyl-5,6-dihydro-2H-1,4-oxazin-2-one