N(2)-(3, 4-Dichlorobenzyl)guanine

N(2)-(3-Trifluoromethylphenyl)guanine

N(2)-(4-n-Butylphenyl) 2'-deoxyguanosine

N(2)-(4-n-Butylphenyl)-2'-deoxyguanosine 5'-triphosphate

N(2)-(5-Nitrofurfurylidene)formohydrazide-4-(3, 5-dicyanophenyl)-6-ethoxy-2-pyridylimide

N(2)-(7, 8, 9, 10-Tetrahydro-7, 8, 9-trihydroxybenzo(a)pyren-10-yl)guanine

N(2)-(Deoxyguanosin-8-yl)-2-amino-3, 8-dimethylimidazo(4, 5-f)quinoxaline 3', 5'-diphosphate

N(2)-(gamma-D-Glutamyl)-meso-2, 2'-diaminopimelic acid

N(2)-(Pyridyloxobutyl)deoxyguanosine

N(2)-Acetyl-N(6)-(2, 4-dinitrophenyl)lysine

N(2)-Acetyllysyl-alanyl-alanine

N(2)-Benzyl-5-methyl-1, 3, 2-dioxaphosphinane-2, 5-diamine 2-oxide

N(2)-Benzyloxycarbonylarginine-4-nitrophenyl ester

N(2)-Dansyl-L-arginine-4-t-butylpiperidine amide

N(2)-Dimethylguanine

N(2)-Ethoxycarbonylphenelzine

N(2)-Ethylguanine

N(2)-Methyl-8-oxoguanine

N(2)-Methyl-gamma-L-glutaminyl-3, 4-dihydroxybenzene

N(2)-Methyl-gamma-L-glutaminyl-4-hydroxybenzene