反应详情

3.50 g 2-chloro 5,6-dimethoxybenzimidazole, 7.50 g N,N-dimethyl 1-piperazine carboxamide [J. Org. Chem. 13 144 (1948)], 20 ml methoxyethanol was reacted as described in Example I. The product was converted to the HCl salt with HCl in isopropyl alcohol. Yield: 5.33 g mp 252°-254° C (85%)