67268-48-8
4-o-nitrophenyl-7-hydroxy-coumarin
+
52119-39-8
2-硝基苯甲酰乙酸乙酯
106-96-7
3-溴丙炔
108-46-3
间苯二酚
→
~67%
67377-25-7
4-(2-nitrophenyl)-7-prop-2-ynoxychromen-2-one