Pyridine → (15alpha)-15-(Acetyloxy)-3-methoxyandrosta-3,5-dien-17-one

Reaction equation

[C:1]([O:4][C@@H:5]1[C@H:10]2[C@H:11]3[C@H:21]([CH2:22][CH2:23][C@:8]2([CH3:9])[C:7](=[O:25])[CH2:6]1)[C@:19]1([CH3:20])[C:14](=[CH:15][C:16](=[O:24])[CH2:17][CH2:18]1)[CH2:13][CH2:12]3)(=[O:3])[CH3:2].[CH3:26]OC(OC)(C)C.[NH+]1C=CC=CC=1.C1(C)C=CC(S([O-])(=O)=O)=CC=1.N1C=CC=CC=1>C(OCC)(=O)C>[C:1]([O:4][C@@H:5]1[C@H:10]2[C@H:11]3[C@H:21]([CH2:22][CH2:23][C@:8]2([CH3:9])[C:7](=[O:25])[CH2:6]1)[C@:19]1([CH3:20])[C:14]([CH:15]=[C:16]([O:24][CH3:26])[CH2:17][CH2:18]1)=[CH:13][CH2:12]3)(=[O:3])[CH3:2]