Try searching for...
SCFBio, IIT Delhi
Formula: C21H20O7 | Mol. Weight: 384.40 g/mol
IUPAC: (3R,4R)-4-(1,3-benzodioxol-5-ylmethyl)-3-[(7-methoxy-1,3-benzodioxol-5-yl)methyl]oxolan-2-one
COC1=CC(=CC2=C1OCO2)CC3C(COC3=O)CC4=CC5=C(C=C4)OCO5