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Two novel microbial conversion products of progesterone derivatives
1Gesellschaft für Biotechnologische Forschung mbH, Research Group of Microbial Transformations, Braunschweig, Germany.
Steroids
|June 1, 1993
Summary
Researchers discovered two new ways microbes can add hydroxyl groups to steroids. This microbial steroid hydroxylation expands possibilities for synthesizing complex steroid compounds.
Area of Science:
- Microbiology
- Biotechnology
- Organic Chemistry
Background:
- Steroid biotransformations are crucial for synthesizing pharmaceutical compounds.
- Microbial hydroxylation offers a regioselective and stereoselective method for modifying steroids.
Purpose of the Study:
- To identify novel microbial hydroxylations of steroids.
- To explore the potential of microorganisms in steroid modification.
Main Methods:
- Screening of 131 microorganisms under aerobic conditions.
- Fermentation of steroid substrates with selected microbial isolates.
- Analysis of hydroxylated products using analytical techniques.
Main Results:
- Corynespora melonis CBS 16260 hydroxylated 17 alpha-hydroxyprogesterone at the 8 beta-position.
- Pycnosporium species ATCC 12231 produced 11 beta-hydroxy- and 11 beta, 12 beta-dihydroxy-17 alpha-acetoxyprogesterone.
- Trichothecium roseum ATCC 12519 yielded the known 11 beta-hydroxy compound as a single product.
Conclusions:
- Discovery of two novel microbial steroid hydroxylations.
- Demonstration of microbial capability for specific steroid modifications.
- Potential for biotechnological applications in steroid synthesis.