IUPAC:(1S,11S,12S,13R,16S,17R)-17-hydroxy-8,16-dimethyl-14-oxapentacyclo[11.2.2.1^{9,12}.0^{1,11}.0^{4,10}]octadeca-4,7,9-triene-6,15-dione
IUPAC:(1S,11S,12S,13R,16S,17R)-17-hydroxy-8,16-dimethyl-14-oxapentacyclo[11.2.2.1^{9,12}.0^{1,11}.0^{4,10}]octadeca-4,7,9-triene-6,15-dione