Try searching for...
SCFBio, IIT Delhi
Formula: C17H18O7 | Mol. Weight: 334.30 g/mol
IUPAC: [(1S,4S,6R,7R,13R,14S)-6,11-dimethyl-16-oxo-5,9,15,17-tetraoxapentacyclo[11.2.2.01,14.04,6.08,12]heptadeca-8(12),10-dien-7-yl] acetate
CC1=COC2=C1C3C4C(O4)(CCC5C(C2OC(=O)C)(O5)C)C(=O)O3