1,1,2,2-tetraphenylethanol

N-(diphenyl-carbinyl-1 ethyl) phtalimidine

N-ethyl diphenylcarbinyl-3 phtalimidine

N,N'-diethyl biphtalimidinyle-3:3'

2,3-Dimethyl-2,3-bis-(3-methyl-phenyl)-butan