CC(C)[C@@H](C)[C@H](C)C[C@@](C)(O)C1=CC[C@H]2[C@@H]3CC[C@H]4[C@H](C)[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C (3S,4S,5S,20R,23R,24R)-4,23-dimethylergost-3,20-diol