N(1)-(5-Phosphoribosyl)-5, 6-dimethylbenzimidazole

N(1)-(6-Chloro-2-methoxy-9-acridinyl)-N(7), N(7)-diethyl-1, 7-heptanediamine

N(1)-(7-Methoxy-1, 2, 3, 4-tetrahydro-9-acridinyl)-N(3), N(3)-dimethyl-1, 3-propanediamine

N(1)-(Azidobenzamidino)spermine

N(1)-(gamma-Glutamyl)spermidine

N(1)-(gamma-Glutamyl)spermine

N(1)-2-Carboxy-4, 6-dinitrophenyl-N(6)-lactobionoyl-1, 6-hexanediamine

N(1)-3-(5-Methylisoxazolyl)-N(4)-(7, 8-dihydro-6-pterinylmethyl)sulfanilamide

N(1)-Acetylnorspermidine

N(1)-Acetylphenylhydrazine

N(1)-Acetylspermidine

N(1)-Acetylsulfamethoxazole

N(1)-allylthiocarbamoyl-N(2)-methylthiocarbamoylhydrazine

N(1)-Aziridinylspermidine

N(1)-Benzyloxycarbonyl-N(8)-butoxycarbonylspermidine

N(1)-Cholesterylcarbamoyl-N(8)-(4-nitrobenzo-2-oxa-1, 3-diazole)-3, 6-dioxaoctyl-1, 8-diamine

N(1)-Cyclopentyl-5-nitropyrimidine-2, 4-dione

N(1)-Ethyl-N(11)-propargyl-4, 8-diazaundecane-1, 11-diamine

N(1)-Ethyl-N-(11)-((cyclopropyl)methyl)-4, 8-diazaundecane-1, 11-diamine

N(1)-Ethylchlorpropamide