Try searching for...
SCFBio, IIT Delhi
Formula: C22H18O7 | Mol. Weight: 394.40 g/mol
IUPAC: 6,7-dimethoxy-4-(6-methoxy-1,3-benzodioxol-5-yl)-3H-benzo[f][2]benzofuran-1-one
COC1=CC2=CC3=C(COC3=O)C(=C2C=C1OC)C4=CC5=C(C=C4OC)OCO5