5a,10b-dihydro-5a,10b-dimethylbenzofuro<2,3-b>benzofuran

4-methyl-3-(4-hydroxyphenyl)-2H-chromene

2-(4-methyl-2H-chromen-3-yl)phenol

3-hydroxy-3-methyl-4-(2,2,5-trimethyl-1,3-dioxol-4-yl)butan-2-one

3-hydroxy-3-(2,2,4-trimethyl-5-methylene-1,3-dioxol-4-yl)-2-butanone