title: [Synthesis of 17 alpha-acyloxy-3,5-pregnadien-20-one derivatives].
mesh_terms: D002845:Chromatography; D007659:Ketones / Q000138:chemical synthesis; D011278:Pregnanes / Q000138:chemical synthesis*; D013057:Spectrum Analysis
chemical_list: D007659:Ketones; D011278:Pregnanes