胆汁酸とステロイドの研究(第7報)3α-アセトキシ-7,12-ジオキソコール酸メチルエステルの臭素化について

抄録

1) The position of bromine atom of Reichstein's "methyl 3α-acetoxy-x-bromo-7, 12-dioxocholanate" was confirmed. 2) Dibromination of methyl 3α-acetoxy-7, 12-dioxocholanate gave 6α, 11α-dibromo compound. 3) Dehydrohalogenation of this dibromo compound with collidine gave a product in which the bromine atom at C₅ had been eliminated.