COC(C)(CO)C(O)CC[C@@H](C)[C@H]1CC[C@@]2(C)C3=CC[C@H]4C(C)(C)C(=O)CC[C@]4(C)C3=CC[C@]12C lanosta-7,9(11)-dien-3-oxo-24,26-diol-25-methoxy