C=C[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](OC5OC(C)C(O)C(O)C5O)CC[C@]4(C)[C@H]3CC[C@]12C α-galactopyranoside-3β-pregna-5,20-dien-3-yl-6-deoxy