CC(=O)O[C@@H]1CO[C@@H](O[C@H]2CC[C@@]3(CO)C(=CC[C@@H]4[C@@H]3CC[C@]3(C)[C@@H]([C@H](C)CCCC(C)(C)OC(C)=O)CC[C@@H]43)C2)[C@@H](O)[C@@H]1O	fragilioside B