Try searching for...
SCFBio, IIT Delhi
Formula: C20H28O4 | Mol. Weight: 332.40 g/mol
IUPAC: [(4aR,5S,7R,8aR,9aS)-3,4a,5-trimethyl-2-oxo-4,5,6,7,8,8a,9,9a-octahydrobenzo[f][1]benzofuran-7-yl] (Z)-2-methylbut-2-enoate
CC=C(C)C(=O)OC1CC(C2(CC3=C(C(=O)OC3CC2C1)C)C)C