CC(=O)O[C@H]1C/C(C)=C/C/C=C(\C)CC(=O)C[C@@]23C(=O)O[C@@H]([C@@H]1C(C)C)[C@@H]2CC(C)=C1CCC2=CCC[C@@](C)(OC2=O)C(O)CC/C(C)=C\C13	Bistrochelide I