IUPAC:(1R,3S,4R,5R,6S)-4-methyl-5-(3-methyl-2-oxobutanoyl)-1,3,6-tris(3-methylbut-2-en-1-yl)-4-(4-methylpent-3-en-1-yl)-7-oxabicyclo[4.2.1]nonane-8,9-dione
IUPAC:(1R,3S,4R,5R,6S)-4-methyl-5-(3-methyl-2-oxobutanoyl)-1,3,6-tris(3-methylbut-2-en-1-yl)-4-(4-methylpent-3-en-1-yl)-7-oxabicyclo[4.2.1]nonane-8,9-dione