2-benzyloxy-5-bromo-7-(piperidin-1-yl)-benzo[de]isoquinoline-1,3-dione 、 、 boron(3+);2,2,2-trifluoroacetate 、
2,2,2-三氟乙酸盐 以
三氟乙酸 为溶剂,
以to give 0.020 g of the title compound as the trifluoroacetate salt, mp 134-136° C.的产率得到5-Bromo-2-hydroxy-7-(piperidin-1-yl)-benzo[de]isoquinoline-1,3-dione