title: 24xi-Methyl 5 alpha-cholestane-3 alpha,6 beta,9 alpha,25-tetrol 24-monoacetate, a novel polyhydroxylated steroid from the soft coral Sarcophyton tortuosum.
abstract: A novel polyhydroxylated steroid, named sartortuosterol A, with rare 3 alpha- and 6-hydroxyl groups, was isolated from the South China Sea soft coral Sarcophyton tortuosum Tixier-Durivault, and its structure was established as 24xi-methyl 5 alpha-cholestane-3 alpha, 6 beta, 9 alpha,25-tetrol 25-monoacetate from spectroscopic data and chemical conversions.
mesh_terms: D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002777:Cholestanols / Q000302:isolation & purification*; D002845:Chromatography; D003063:Cnidaria / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
chemical_list: D002777:Cholestanols; C055392:24-methylcholestane-3,6,9,25-tetrol-25-acetate