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Steroidal compounds containing 17β-acetoxy group after aromatization by Arthrobactersimplex afforded 17β-hydroxy-,17-keto-or unhydrolyzed 17β-acetoxy-ring A-aromatic compou-nds.17-Keto-compounds were probably formed through the oxidation of the corresponding 17 β-hydroxyl group during fermentation with this microorganism.Hydrolysis of 17 β-acetoxy group isdependent upon other substituents present in the substrates.
Steroidal compounds containing 17β-acetoxy group after aromatization by Arthrobactersimplex afforded 17β-hydroxy-, 17-keto-or unhydrolyzed 17β-acetoxy-ring A-aromatic compou-nds.17-Keto-compounds were probably formed through the oxidation of the corresponding 17 β-hydroxyl group during fermentation with this microorganism. Hydrolysis of 17 β-acetoxy group is dependent on other substituents present in the substrates.