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Synthesis of biological precursors of cholic acid II
Steroids
|February 1, 1981
Abstract:
This paper describes the partial syntheses of 3 alpha, 7 alpha, 12 alpha-trihydroxy-5 beta-cholestan-26-al, 7 alpha, 12 alpha, 26-trihydroxy-5 beta-cholestan-3-one and 7 alpha, 12 alpha-dihydroxy-3-oxo-5 beta-cholestan-26-al via Ag2CO3/Celite oxidation of 5 beta-cholestane-3 alpha, 7 alpha, 12 alpha, 26-tetrol. These bile alcohols were resolved by analytical and preparative TLC, characterized by gas-liquid chromatography and mass spectrometry. These compounds will be useful to delineate further the mechanism of oxidation of 5 beta-cholestane-3 alpha, 7 alpha, 12 alpha, 25-tetrol on the pathway to cholic acid.