title: A novel synthesis of 4 alpha- and 4 beta-methycholest-5-en-3 beta-ol from 6 beta-bromo-4-methylcholest-4-en-3-one.
mesh_terms: D001966:Bromine; D002782:Cholestenes; D008722:Methods; D008745:Methylation; D010084:Oxidation-Reduction; D013261:Sterols / Q000138:chemical synthesis*
chemical_list: D002782:Cholestenes; D013261:Sterols; D001966:Bromine