6626-15-9
4-溴间苯二酚
→
485318-64-7
[2-[(6-bromo-7-hydroxy-2-oxochromen-4-yl)methyl]-4-nitrophenyl] carbonate
7693-46-1
对硝基苯基氯甲酸酯
+
223420-41-5
6-bromo-7-hydroxy-4-(hydroxymethyl)chromen-2-one