title: Preparation of 3-epi-ecdysone and 3-epi-20-hydroxyecdysone.
abstract: 3-Dehydro-ecdysone and 3-dehydro-20-hydroxyecdysone were prepared and characterized. Reduction of these compounds with NaBH4 gave 3-epi-ecdysone and 3-epi-20-hydroxyecdysone, which were characterized fully by mass and p.m.r. spectrometry as well as by derivative formation.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002855:Chromatography, Thin Layer; D004440:Ecdysone / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010084:Oxidation-Reduction
chemical_list: D004440:Ecdysone