29263-94-3
2-溴-2-甲基丙二酸二乙酯
+
99-57-0
2-氨基-4-硝基苯酚
→
~78%
154365-37-4
ethyl 2-methyl-6-nitro-3-oxo-4H-1,4-benzoxazine-2-carboxylate
154365-44-3
2-methyl-6-nitro-3-oxo-4H-1,4-benzoxazine-2-carboxylic acid