Try searching for...
SCFBio, IIT Delhi
Formula: C21H26O5 | Mol. Weight: 358.40 g/mol
IUPAC: (9S)-16,17-dimethoxytricyclo[12.3.1.12,6]nonadeca-1(17),2,4,6(19),14(18),15-hexaene-3,9,15-triol
COC1=C2C=C(CCCCC(CCC3=CC2=C(C=C3)O)O)C(=C1OC)O