67-56-1
甲醇
+
120890-75-7
2-Bromo-5-ethoxybenzoic acid
→
765944-34-1
methyl 2-bromo-5-ethoxybenzoate
75-03-6
碘乙烷
154607-00-8
2-溴-5-羟基苯甲酸甲酯
303735-64-0
2,7-diethoxyfluoren-9-one