IUPAC:(1S,2R,7R,8R,10R,11R)-8-hydroxy-11-methyl-5-methylidene-13-oxapentacyclo[9.3.3.2^{4,7}.0^{1,10}.0^{2,7}]nonadecane-6,14-dione
IUPAC:(1S,2R,7R,8R,10R,11R)-8-hydroxy-11-methyl-5-methylidene-13-oxapentacyclo[9.3.3.2^{4,7}.0^{1,10}.0^{2,7}]nonadecane-6,14-dione