title: Synthesis of ergostane derivatives oxygenated in ring D.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004875:Ergosterol / Q000031:analogs & derivatives*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008722:Methods; D010084:Oxidation-Reduction; D013329:Structure-Activity Relationship
chemical_list: C015190:ergostane; D004875:Ergosterol