The Biotransformation of some Halogenated Steroids by The Fungus cephalosporium aphidicola

The synthesis of some known halogenated steroids derived from testosterone and epiandrosterone were described. The bioconversion of the halogenated products by fungus cephalosporium aphidicola were preformed. The bioconversion results were compared with the bioconversion results of the same compounds with the fungs mucor plumbeus. The results of the bioconversion of both fungi were identical .