Formula: C25H26O7 | Mol. Weight: 438.50 g/mol
IUPAC: (1R,2R,8R,10R,14S,17R,18R)-17-(furan-3-yl)-2,7,7,18-tetramethyl-6,9,16-trioxapentacyclo[11.7.0.02,8.08,10.014,18]icosa-3,12-diene-5,11,15-trione
CC1(C23C(O2)C(=O)C=C4C(C3(C=CC(=O)O1)C)CCC5(C4C(=O)OC5C6=COC=C6)C)C