Try searching for...
SCFBio, IIT Delhi
Formula: C25H30O7 | Mol. Weight: 442.50 g/mol
IUPAC: (5aS,10bS)-7-butanoyl-8,10-dihydroxy-2,2,4,4-tetramethyl-5a-propan-2-yl-10bH-[1]benzofuro[2,3-b][1]benzofuran-1,3-dione
CCCC(=O)C1=C(C=C(C2=C1OC3(C2C4=C(O3)C(C(=O)C(C4=O)(C)C)(C)C)C(C)C)O)O