11-bromo-2-methyl-2,3-dihydrofuro[3,2-b]xanthen-5-one

(4-bromo-9-oxo-2-prop-2-enylxanthen-3-yl) acetate

(4-bromo-9-oxoxanthen-3-yl) acetate

3-[2-羟基-3-(丙-2-基氨基)丙氧基]氧杂蒽-9-酮