Formula: C22H20O7 | Mol. Weight: 396.40 g/mol
IUPAC: (12R,13R,16S)-4'-methoxy-5,5-dimethylspiro[6,14,17-trioxatetracyclo[8.7.0.02,7.012,16]heptadeca-1(10),2(7),3,8-tetraene-13,6'-cyclohex-4-ene]-1',3',11-trione
CC1(C=CC2=C(O1)C=CC3=C2OC4COC5(C4C3=O)C=C(C(=O)CC5=O)OC)C