N-acetyl-N-(4-methoxybenzyl)-α,α-dibenzylglycine 2,4-dimethoxybenzyl amide

ethyl 2,2-dibenzyl-3-oxobutanoate

ethyl 2-benzyl-2-(benzylideneamino)-3-phenylpropanoate

2-acetylamino-2-benzyl-3-phenyl-propionic acid ethyl ester