Try searching for...
SCFBio, IIT Delhi
Formula: C20H22O5 | Mol. Weight: 342.40 g/mol
IUPAC: 4,5-dimethoxy-2,11-dioxatricyclo[13.2.2.13,7]icosa-1(17),3,5,7(20),15,18-hexaen-10-one
COC1=CC2=CC(=C1OC)OC3=CC=C(CCCOC(=O)CC2)C=C3