5-溴-2,1,3-苯并恶唑

4-溴邻苯二胺

ethyl 7-bromo-3-methylquinoxaline-2-carboxylate

ethyl 7-bromo-3-methyl-4-oxidoquinoxalin-4-ium-2-carboxylate

2-Carbethoxy-3-methyl-6-bromoquinoxaline-di-N-oxide