IUPAC: 15,16-dihydroxy-9,13-dimethyl-3-[(3-methylbut-2-enoyl)oxy]-4,10-dioxo-11-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-5,18-dioxapentacyclo[12.5.0.0^{1,6}.0^{2,17}.0^{8,13}]nonadec-11-ene-17-carboxylic acid

SMILES: CC1C2CC3OC(=O)C(OC(=O)C=C(C)C)C4C33COC4(C(O)C(O)C3C2(C)C=C(OC2OC(CO)C(O)C(O)C2O)C1=O)C(O)=O