methyl 2-(((1R,4S,8R)-8-bromo-7-oxo-6-oxabicyclo[3.2.1]oct-2-en-4-yl)oxy)acrylate

3-羟基扁桃酸

间羟基苯甲醛

3-羟基苯甲醇

3-羟基苯乙酮