2,2-dimethyl-7-(prop-2-yn-1-yloxy)chroman-4-ol

3,3-二甲基丙烯酸

间苯二酚

7-羟基-2,2-二甲基-苯并二氢吡喃-4-酮

1-(2',4'-dihydroxyphenyl)-3-methyl-1-oxo-2-butene