In the series of derivatives of 1, 4-di-N-oxides of quinoxaline, compounds are known which exhibit high antibacterial activity: the drugs quinoxaline and dioxidine, and also analogs containing fluorine and chlorine atoms in the 6 position [1-3]. With the goal of searching for new drugs with a broad spectrum of antibacterial action, it was of interest to synthesize and study the biological activity of compounds containing chlorine or fluorine atoms in the 6 ...