CC(C)C(C)/C=C/[C@@H](C)[C@H]1CCC2C3=C([C@H](O)C[C@@]21C)[C@@]1(C)CC[C@H](OCCO)C[C@]1(O)[C@@H](O)[C@H]3O (2R,5S,7R,8S,9S,14R,15R,17R)-14-((2R,3E)-5,6-dimethylhept-3-en-2-yl)-5-(2-hydroxyethoxy)-2,15-dimethyltetracyclo[8.7.0.0^{11,15}.0^{2,7}]heptadec-1(10)-ene-7,8,9,17-tetraol