4,5-dibromo-2-[3-(trifluoromethyl)phenyl]pyridazin-3-one

4,5-二溴-2-苯基-2,3-二氢哒嗪-3-酮

(乙氧基羰基甲基)三苯基溴化膦

ethyl (2E)-5-bromo-2-penten-4-ynoate

ethyl (2E,4Z)-4,5-dibromo-2,4-pentadienoate