3-Hydroxy-2,5-bis(2-methyl-2-propanyl)-7,11,12-trioxatricyclo[7.2.1.0~1,6~]dodeca-2,5-dien-4-one

3-Hydroxy-2,5-bis(2-methyl-2-propanyl)-7,11,12-trioxatricyclo[7.2.1.0~1,6~]dodeca-2,5-dien-4-on

3-Hydroxy-2,5-bis(2-methyl-2-propanyl)-7,11,12-trioxatricyclo[7.2.1.0~1,6~]dodeca-2,5-dien-4-one

3-Hydroxy-2,5-bis(2-méthyl-2-propanyl)-7,11,12-trioxatricyclo[7.2.1.0~1,6~]dodéca-2,5-dién-4-one

8H-3,5a-Epoxy-2H-1,5-benzodioxepin-8-one, 6,9-bis(1,1-dimethylethyl)-3,4-dihydro-7-hydroxy-

2,5-di-tert-butyl-3-hydroxy-7,11,12-trioxatricyclo[7.2.1.0~1,6~]dodeca-2,5-dien-4-one

6,9-di-tert-butyl-7-hydroxy-3,4-dihydro-3,5a-epoxybenzo[b][1,4]dioxepin-8(2H)-one