CC(C)[C@@H](C)/C=C/[C@@H](C)[C@H]1CC[C@H]2C3=CC(=O)[C@@]45C[C@@H](O)CC[C@]4(C)[C@]3(CC[C@]12C)O5 (22E,24R)-3β-hydroxy-5,9-epoxyergosta-7,22-dien-6-one