4-(4-Acetylamino-2,6-dimethoxy-phenoxy)-butyric acid methyl ester

methyl 4-(2,6-dimethoxy-4-nitrophenoxy)butanoate

4-溴丁酸甲酯

1,2,3-三甲氧基-5-硝基苯

3',4',5'-三甲氧基苯乙酮