589-41-3
N-羟基氨基甲酸乙酯
+
7115-90-4
2-(bromomethyl)benzoyl chloride
→
62758-34-3
ethyl 1-oxo-4H-2,3-benzoxazine-3-carboxylate
51707-33-6
ethyl N-[[2-(hydrazinecarbonyl)phenyl]methyl]-N-hydroxycarbamate