Try searching for...
SCFBio, IIT Delhi
Formula: C20H26O4 | Mol. Weight: 330.40 g/mol
IUPAC: (7aS,11aS)-2-hydroxy-8,8,11a-trimethyl-3-propan-2-yl-7a,9,10,11-tetrahydrobenzo[d][2]benzoxepine-5,7-dione
CC(C)C1=C(C=C2C(=C1)C(=O)OC(=O)C3C2(CCCC3(C)C)C)O