IUPAC: (2S,2'S,4'S,6'R,7'R,11'R,12'S,14'S,16'R,20'R,23'S,25'R)-12',14',25'-trihydroxy-4,7',22',22'-tetramethyl-5H-3',10',17',21'-tetraoxaspiro[furan-2,9'-heptacyclo[12.11.0.0^{2,4}.0^{2,11}.0^{6,11}.0^{16,20}.0^{16,23}]pentacosane]-5,18'-dione

SMILES: C[C@@H]1C[C@@]2(OC(=O)C(C)=C2)O[C@@]23[C@@H]1C[C@@H]1O[C@]21C1[C@H](O)C[C@H]2C(C)(C)O[C@@H]4CC(=O)O[C@]24C[C@@]1(O)C[C@@H]3O |c:8|