An investigation has been undertaken of the microbial biotransformation of
2-oxatestosterone by microorganisms known to hydroxylate conventional stero
ids, using Aspergillus ochraceus, Bacillus megaterium, Curvularia lunata an
d Rhizopus arrhizus. A. ochraceus and B. megaterium gave products of 11 alp
ha- and 15 beta-hydroxylation, respectively. Biotransformation by C. lunata
gave C-11 beta- and C-14 alpha-hydroxylated products, whereas R. arrhizus
produced only the 6 beta-hydroxy derivative. (C) 1999 Elsevier Science B.V.
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