CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2[C@@H]3C(=O)[C@@H]4O[C@@]45C[C@@H](O)CC[C@]5(C)[C@H]3CC[C@]12C (3β,5α,6β)-5,6-epoxy-3β-hydroxycholestan-7-one