In order to discover lead compounds exhibiting promising biological activities, we designed new quinoxaline 1,4-di-N-oxides derivatives by applying the classical bioisosterism strategy and taking into consideration the role of the quinoxaline nucleus and urea as important scaffolds.We explored optimal synthetic routes, reaction condition as well as reaction mechanism of intermediates and target products, analyzed the physicochemical and spectroscope properties of the compounds. The structural properties of ...