IUPAC:(1S,7R,8S,9S,10R,12S)-7,8-dihydroxy-4,9-dimethyl-13-methylidene-6-oxatetracyclo[7.4.0.0^{3,7}.0^{10,12}]tridec-3-en-5-one
IUPAC:(1S,7R,8S,9S,10R,12S)-7,8-dihydroxy-4,9-dimethyl-13-methylidene-6-oxatetracyclo[7.4.0.0^{3,7}.0^{10,12}]tridec-3-en-5-one