3-[2-(3,3-Diphenylureido)ethyl]-3-(2-pyridyl)-2-pyrrolidon

3-[2-[(2-methylpropan-2-yl)oxy]ethyl]-1,1-diphenylurea

3-(4-Biphenylyl)-2-oxo-3-pyrrolidincarbonitril

N,N''-<3-(4-Biphenylyl)-3-cyan-1,5-pentandiyl>bis(N',N'-diphenylharnstoff)

3-(2-hydroxyethyl)-1,1-diphenylurea