Try searching for...
SCFBio, IIT Delhi
Formula: C20H22O6 | Mol. Weight: 361.40 g/mol
IUPAC: (3R,4R)-3,4-bis[(4-hydroxy-3-methoxyphenyl)(113C)methyl](213C)oxolan-2-one
COC1=C(C=CC(=C1)CC2COC(=O)C2CC3=CC(=C(C=C3)O)OC)O