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Transformed steroids
Authors:A. A. Akhrem  A. V. Kamernitskii  V. A. Krivoruchko  R. P. Litvinovskaya  I. G. Reshetova
Affiliation:(1) Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, 220141 Minsk, ul. Kuprevicha, 5/2, Belarus
Abstract:
1. Together with the cis-hydroxylation of the Delta16-bond, the hydroxylation of the 3-acetates of the ethyl esters of 24-nor- and 21,24-dinorchola-5,16,20(22)-trien-3beta-ol-23-oic acids with aqueous KMnO4 inpyridine gives the 3,16agr, 22-triol 17,20-epoxides and their acetates.
2. The hydroxylation of the 21,24-dinor analogs with 30% H2O2 solution in the presence of OsO4 leads to a complex mixture of profoundly oxidized reaction products that are identified with difficulty. Only saponification of the carbethoxyl grouping occurs when alkaline H2O2 solution is used for the epoxidation.
Keywords:
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