4-Bromo-benzoic acid 2-[3-(2-methyl-allyl)-3-(3-methyl-but-2-enyl)-2,6-dioxo-cyclohexanecarbonyl]-3-(2-methyl-allyloxy)-benzyl ester

4-Bromo-benzoic acid 2-{methoxy-[3-(2-methyl-allyl)-3-(3-methyl-but-2-enyl)-2,6-dioxo-cyclohex-(Z)-ylidene]-methyl}-3-(2-methyl-allyloxy)-benzyl ester

4-Bromo-benzoic acid 2-[2-methoxy-3-(2-methyl-allyl)-3-(3-methyl-but-2-enyl)-6-oxo-cyclohex-1-enecarbonyl]-3-(2-methyl-allyloxy)-benzyl ester

4-Bromo-benzoic acid 3-((E)-4-bromo-2-methyl-but-2-enyloxy)-2-[2-hydroxy-4-methyl-3-(3-methyl-but-2-enyl)-6-oxo-cyclohex-1-enecarbonyl]-benzyl ester

4-Bromo-benzoic acid 2-formyl-3-{(E)-4-[4-methoxy-6-methyl-1-(3-methyl-but-2-enyl)-2-oxo-cyclohex-3-enyl]-2-methyl-but-2-enyloxy}-benzyl ester