CC(C)(O)[C@H]1O[C@H]2CC[C@@]3(C)[C@@H](CC[C@H]4Cc5c([nH]c6ccccc56)[C@@]43C)[C@]2(O)[C@H](O)[C@H]1O (2S,3R,4R,4aS,4bR,6aS,12bS,12cS,14aS)-4a-demethylpaspaline-3,4,4a-triol