IUPAC: (1'R,2R,2'S,4'S,5S,7'S,8'R,9'S,12'S,13'S,15'S,16'R,18'R)-5,7',9',13'-tetramethyl-5'-oxaspiro[oxane-2,6'-pentacyclo[10.8.0.0^{2,9}.0^{4,8}.0^{13,18}]icosane]-15',16'-diol

SMILES: [H][C@]12C[C@@]3([H])[C@]4([H])CC[C@]5([H])C[C@@H](O)[C@@H](O)C[C@]5(C)[C@@]4([H])CC[C@]3(C)[C@@]1([H])[C@H](C)[C@@]1(CC[C@H](C)CO1)O2