IUPAC:(1'S,3R,5S,7'R,9'R,10'R)-5-(furan-3-yl)-7'-methyl-12',14'-dioxaspiro[oxolane-3,6'-tetracyclo[7.4.1.0^{1,10}.0^{5,10}]tetradecane]-2,13'-dione
IUPAC:(1'S,3R,5S,7'R,9'R,10'R)-5-(furan-3-yl)-7'-methyl-12',14'-dioxaspiro[oxolane-3,6'-tetracyclo[7.4.1.0^{1,10}.0^{5,10}]tetradecane]-2,13'-dione