反应详情

Reacting N-(2-benzimidazolylmethyl)ethylenediamine with ethyl isothiocyanate by the procedure of Example 3(b), then chromatographing and reacting the resulting thiourea with lead cyanamide by the procedure of Example 3(b) gives N-[2-(2-benzimidazolylmethylamino)-ethyl]-N'-cyano-N"-ethylguanidine.