6-(3-methylbut-2-enyl)-1,3-benzodioxol-5-ol

7,8-dihydro-6,6-dimethyl-2H-1,3-dioxolo[4,5-γ][1]benzopyran

6,6-dimethyl-[1,3]dioxolo[4,5-g]chromene

7,7-dimethyl-6-methylene-6,7-dihydro-[1,3]dioxolo[4,5-f]benzofuran

5-(oxiran-2-ylmethoxy)-1,3-benzodioxole