benzo[d]isoxazole-5-carbaldehyde 、 N-(2-((4-(2-(Ethylamino) ethyl) phenyl) carbamoyl)-4,5-dimethoxyphenyl)-4-oxo-4H-chromene-2-carboxamide trifluoroacetate salt 以38%的产率得到N-(2-((4-(2-((Benzo[d]isoxazol-5-ylmethyl) (ethyl) amino) ethyl) phenyl) carbamoyl)-4,5-dimethoxyphenyl)-4-oxo-4H-chromene-2-carboxamide