Try searching for...
SCFBio, IIT Delhi
Formula: C18H18O5 | Mol. Weight: 314.30 g/mol
IUPAC: (3R,4R)-4-(4-hydroxy-3-methoxyphenyl)-3-(4-methoxyphenyl)oxolan-2-one
COC1=CC=C(C=C1)C2C(COC2=O)C3=CC(=C(C=C3)O)OC