Try searching for...
SCFBio, IIT Delhi
Formula: C19H18O5 | Mol. Weight: 326.30 g/mol
IUPAC: (1S,11S,12S,13R,16S,17R)-17-hydroxy-8,16-dimethyl-14-oxapentacyclo[11.2.2.19,12.01,11.04,10]octadeca-4,7,9-triene-6,15,18-trione
CC1C(C2C3C4C1(CCC5=CC(=O)C=C(C(=C45)C3=O)C)C(=O)O2)O