IUPAC: (1S,2R,9S,10R,12S)-2,7-dihydroxy-4,9-dimethyl-13-methylidene-6-oxatetracyclo[7.4.0.0^{3,7}.0^{10,12}]tridec-3-en-5-one

SMILES: CC1=C2[C@H](O)[C@H]3C(=C)[C@H]4C[C@H]4[C@]3(C)CC2(O)OC1=O |c:1|