IUPAC:(1'S,3S,3aR,4R,6'S,7'R,7aR,9'S)-7'-hydroxy-3-methoxy-7a-methyl-10'-methylidene-hexahydro-1H-3'-oxaspiro[2-benzofuran-4,5'-tricyclo[7.2.1.0^{1,6}]dodecane]-2',11'-dione
IUPAC:(1'S,3S,3aR,4R,6'S,7'R,7aR,9'S)-7'-hydroxy-3-methoxy-7a-methyl-10'-methylidene-hexahydro-1H-3'-oxaspiro[2-benzofuran-4,5'-tricyclo[7.2.1.0^{1,6}]dodecane]-2',11'-dione