CC(=O)O[C@H]1C[C@@H]2O[C@]2(C)[C@@H]2[C@H](OC(C)=O)[C@]34O[C@@]3(C)C(=O)O[C@H]4/C=C(/C)C[C@@H](OC(C)=O)[C@H](O)[C@@]12C	brianthein C