(R)-4-tert-Butyl-2-(1,1-diphenyl-ethyl)-4,5-dihydro-oxazole

6-benzyl-6-azabicyclo<3.2.1>octan-3α-ol 2,2-diphenylpropionate

2-Diazo-3-oxo-4,4-diphenyl-pentanoic acid methyl ester

N-(1,1-diphenylethyl)aminoacetic acid