5-bromo-3-hydroxy-3-(pyridin-2-ylmethyl)-1H-indol-2-one

(5-bromo-2-oxo-1,3-dihydroindol-3-yl) acetate

2-(4-aminophenyl)-6-bromoquinoline-4-carboxylic acid

5-bromo-3-(4-methoxyanilino)indol-2-one

9-bromo-6H-indolo[3,2-b]quinoxaline