IUPAC: (1R,8R)-3,3-dimethyl-12-methylidene-11-oxo-10-oxatricyclo[6.4.0.0^{1,5}]dodec-6-ene-7-carboxylic acid

SMILES: CC1(C)CC2C=C([C@@H]3COC(=O)C(=C)[C@]23C1)C(O)=O |c:5|