CC(=O)O[C@H]1CC=C(C)[C@@H]2[C@@H](O)[C@@]3(O)[C@H](/C=C(/C)[C@H](OC(C)=O)C[C@@H](OC(C)=O)[C@@]12C)OC(=O)[C@@H]3C	4β-acetoxy-9-deacetylstylatulide lactone