Methanol → 3,11alpha-Diacetoxy-estra-3,5-dien-17-one

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[C:1]1([CH3:11])C=CC(S(O)(=O)=O)=CC=1.[OH:12][C@@H:13]1[CH2:30][C@@:28]2([CH3:29])[C@@H:24]([CH2:25][CH2:26][C:27]2=[O:31])[C@H:23]2[C@H:14]1[C@@H:15]1[C:20]([CH2:21][CH2:22]2)=[CH:19][C:18](=[O:32])[CH2:17][CH2:16]1.N1C=CC=CC=1.C[OH:40].[C:41](OC(=O)C)(=[O:43])[CH3:42]>>[C:41]([O:32][C:18]1[CH2:17][CH2:16][C@H:15]2[C:20](=[CH:21][CH2:22][C@@H:23]3[C@@H:14]2[C@H:13]([O:12][C:1](=[O:40])[CH3:11])[CH2:30][C@@:28]2([CH3:29])[C@H:24]3[CH2:25][CH2:26][C:27]2=[O:31])[CH:19]=1)(=[O:43])[CH3:42]