N,N'-BIS(CARBOBENZYLOXY)-L-LYSYL-L-LEUCINAMIDE

N,N'-BIS(CARBOBENZYLOXY)LYSYLVALINE METHYL ESTER

N,N'-DI-O-TOLYL-ETHANE-1,2-DIAMINE

N,N'-DI(P-TOLYL)FORMAMIDINE

N,N'-DIBENZYL-N,N'-DIMETHYLOXAMIDE

N,N′-Dicyclohexyl-N-(1H-indol-3-ylacetyl)urea

N,N'-DIETHYL-N,N'-DI(M-TOLYL)TEREPHTHALAMIDE

N,N'-DIISOPROPYL-N,N'-DIPHENYLTEREPHTHALAMIDE

N,N'-TEREPHTHALYLIDENEBIS(4-AMINOSALICYLIC ACID)

N,N'-TEREPHTHALYLIDENEDI-P-TOLUIDINE

N,N-bis[2-(2-ethoxyphenoxy)ethyl]cyclopropanamine hydrochloride

N,N-BIS(2-BROMOPHENYL)-1,2-PHENYLENEDIAMINE

N,2-DIMETHYLBENZENESULFONAMIDE

N,3,4,4-tetramethyl-N-phenyl-1-imidazolidinecarboxamide hydrochloride

N,N'-(1,2-ETHYLENE)BIS(4-AMINOMETHYLENE)-3-METHYL-1-PH-2-PYRAZOLINE-5-THIONE