The title compounds were prepared by nitration of compounds 2, reduction of the dinitro derivatives 4 and diazotization of the diamino derivatives 6 followed by an intramolecular coupling reaction. Compound 4a showed good activity against Salmonella cholerasuis and Clostridium perfringens bacteria.
                                    通过化合物2的硝化,二硝基衍
生物4的还原和二
氨基衍
生物6的重氮化,然后进行分子内偶联反应,制备标题化合物。化合物4a显示出对霍乱沙门氏菌和产气荚膜梭状芽孢杆菌细菌的良好活性。