Guaimesal

2-(2-Methoxyphenoxy)-2-methyl-1,3-benzodioxan-4-one

2-(2-Methoxyphenoxy)-2-methyl-4H-1,3-benzodioxin-4-one

9-(2-methoxyphenoxy)-9-methyl-8,10-dioxabicyclo[4.4.0]deca-1,3,5-trien -7-one