C=C1CC/C=C(\C)C[C@H](OC(C)=O)[C@@H](C(C)C)[C@@H]2OC(=O)[C@@]3(CC(=O)C1)C1/C=C(\C)CCC(O)[C@@]4(C)CCC=C(CCC1=C(C)C[C@@H]23)C(=O)O4	Bistrochelide K