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A fast one-pot procedure for the synthesis of 5α-hydroxy-6-oxo steroids is described. Epoxidation of 3β-hydoxy-∆ steroids followed by oxidative cleavage of the resulting epoxide with aqueous CrO3 lead to the desired compounds without affection of labile side chains.

A rapid and simple one-pot procedure for the synthesis of 3β-acetoxy-5α-hydroxy-6-oxo steroids