IUPAC:(1S,1'S,2R,6S,6'S,7'S,9'S)-2-formyl-7'-hydroxy-3,3-dimethyl-10'-methylidene-2',11'-dioxo-3'-oxaspiro[cyclohexane-1,5'-tricyclo[7.2.1.0^{1,6}]dodecan]-6-yl acetate
IUPAC:(1S,1'S,2R,6S,6'S,7'S,9'S)-2-formyl-7'-hydroxy-3,3-dimethyl-10'-methylidene-2',11'-dioxo-3'-oxaspiro[cyclohexane-1,5'-tricyclo[7.2.1.0^{1,6}]dodecan]-6-yl acetate