N,N'-BIS-(4-ETHOXY-PHENYL)-ACETAMIDINE

N,N'-BIS-(4-METHOXYBENZYLIDENE)-ETHYLENEDIAMINE

N,N'-BIS-TRITYL-PENTANE-1,5-DIAMINE

N,N'-BIS(2-CHLOROBENZYLIDENE)-1,4-PHENYLENEDIAMINE

N,N'-BIS(2-HYDROXYETHYL)-N.N'-BIS(4-NITROPHENYL)ETHYLENEDIAMINE

N,N'-BIS(3-CHLORO-4-METHYLPHENYL)FORMAMIDINE

N,N'-BIS(4-BROMOPHENYL)FORMAMIDINE

N,N'-BIS(4-HYDROXYBENZYLIDENE)-1,4-PHENYLENEDIAMINE

N,N'-BIS(4-OCTYLOXYBENZYLIDENE)-1,4-PHENYLENEDIAMINE

N,N'-BIS(CARBOBENZYLOXY)-L-LYSINAMIDE

N,N'-BIS(CYCLOHEXYLOXYCARBONYL)-1,6-HEXANEDIAMINE

N,N'-DI-M-TOLYL-ISOPHTHALAMIDE

N,N'-DI-TERT-BUTYL-2,3-DIHYDROXY-SUCCINAMIDE

N,N'-DODECAMETHYLENEBIS(2-HYDROXY-3-METHOXYBENZYLAMINE)

N,N'-ETHYLENEBIS(N-(CHLOROMETHYL)-2,6-DIMETHOXYBENZAMIDE)