3H-benzooxazol-2-one, sodium salt

4-氯丁酸甲酯

4-(2-oxo-benzooxazol-3-yl)-butyric acid ethyl ester

3-(2-oxo-benzooxazol-3-yl)-propionyl chloride

3-(4-diazo-3-oxo-butyl)-3H-benzooxazol-2-one