CC(C)[C@@H](C)/C=C/[C@@H](C)[C@H]1CC[C@H]2C3=C(CC[C@]12C)[C@@]1(C)CC[C@H](O)C[C@@]12O[C@H]2[C@@H]3O (22E,24R)-5α,6α-epoxy-ergosta-8,22-diene-3β,7β-diol