IUPAC:(1S,1'S,4R,6'S,7R,8R,9S,9'R,11'R)-11'-hydroxy-4-methyl-10'-methylidene-3',6,10-trioxaspiro[tricyclo[5.2.1.0^{4,8}]decane-9,5'-tricyclo[7.2.1.0^{1,6}]dodecan]-2'-one
IUPAC:(1S,1'S,4R,6'S,7R,8R,9S,9'R,11'R)-11'-hydroxy-4-methyl-10'-methylidene-3',6,10-trioxaspiro[tricyclo[5.2.1.0^{4,8}]decane-9,5'-tricyclo[7.2.1.0^{1,6}]dodecan]-2'-one