The present application is useful in the treatment of cancer and other disorders, indole-amine 2,3-dioxide in 4 dioxygenase inhibitors of the - ({2 - [(aminosulfonyl) amino] ethyl} amino) - N - (3- bromo- 4-fluoro-phenyl) - N '- hydroxy -1,2,5- oxadiazol-3-carboxamide, to a method and intermediates for the preparation of a polyimide already.본원은, 암 및 다른 장애의 치료에 유용한, 인돌아민 2,3-디옥시게나제의 억제제인 4-({2-[(아미노설포닐)아미노]에틸}아미노)-N-(3-브로모-4-플루오로페닐)-N'-하이드록시-1,2,5-옥사디아졸-3-카복스이미다마이드를 제조하기 위한 방법 및 중간체에 관한 것이다.