4-methyl-2-oxo-2H-chromen-7-yl trifluoromethanesulfonate

4-methyl-2-oxo-2H-chromen-7-yl 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate

phenyl tetrolate

巴豆酸甲酯

4-羟基-3-碘苯甲酸甲酯