Try searching for...
SCFBio, IIT Delhi
Formula: C20H22O4 | Mol. Weight: 326.40 g/mol
IUPAC: 13,16,16-trimethyl-15-oxatetracyclo[8.7.1.02,7.014,18]octadeca-2,4,6,10,12,14(18)-hexaene-4,5,12-triol
CC1=C(C=C2CCC3=CC(=C(C=C3C4C2=C1OC(C4)(C)C)O)O)O