CC(=O)[C@H]1C(=O)CC[C@]23O[C@H]2CC[C@H](C)[C@@]13C	(1aS,4S,4aS,5S,8aR)-5-acetyl-4,4a-dimethyl-2,3,4,5,7,8-hexahydro-1aH-naphtho[1,8a-b]oxiren-6-one