Try searching for...
SCFBio, IIT Delhi
Formula: C20H20O4 | Mol. Weight: 324.40 g/mol
IUPAC: (2R,11R)-17,17-dimethyl-4,12,18-trioxapentacyclo[11.8.0.02,11.05,10.014,19]henicosa-1(13),5(10),6,8,14(19),20-hexaen-7-ol
CC1(CCC2=C(O1)C=CC3=C2OC4C3COC5=C4C=CC(=C5)O)C