2,2-dimethyl-7-hydroxy-2H-1-benzopyran

7-acetoxy-2,2-dimethyl-2H-chromene

2,4-二羟基苯乙酮

4,4-二甲氧基-2-甲基-2-丁醇

1-(2,4-dihydroxy-3-iodophenyl)ethanone