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Microbial transformation of danazol.
M Iqbal Choudhary1, Azizuddin, Atta-ur-Rahman
1H.E.J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Pakistan.
Natural Product Letters
|May 7, 2002
Summary
Danazol fermentation with specific microbes yielded two new steroid compounds. This research explores microbial transformations of Danazol, identifying novel steroid derivatives.
Area of Science:
- Microbiology
- Organic Chemistry
- Biotechnology
Background:
- Danazol (17beta-hydroxy-17alpha-pregna-2,4-dien-20-yno-[2,3-d] isoxazole) is a synthetic steroid with various therapeutic applications.
- Microbial fermentation is a powerful tool for biotransformation and the synthesis of complex organic molecules.
- Understanding the microbial metabolism of steroids can lead to the discovery of novel compounds and synthetic pathways.
Purpose of the Study:
- To investigate the microbial transformation of Danazol using different fungal and bacterial species.
- To identify and characterize the metabolites produced during the fermentation process.
- To explore the potential of microbial fermentation in generating novel steroid derivatives from Danazol.
Main Methods:
- Fermentation of Danazol using Fusarium lini, Aspergillus niger, Cephalosporium aphidicola, and Bacillus cereus.
- Isolation and purification of the resulting compounds using chromatographic techniques.
- Structure elucidation of the isolated compounds using spectroscopic methods (e.g., NMR, Mass Spectrometry).
Main Results:
- Fermentation with Fusarium lini, Aspergillus niger, and Cephalosporium aphidicola yielded two novel steroid compounds: 17beta-hydroxy-2-(hydroxymethyl)-17-alpha-pregn-4-en-20-yn-3-one (2) and 17beta-hydroxy-2-(hydroxymethyl)-17 alpha-pregna-1,4-dien-20-yn-3-one (3).
- Fermentation with Bacillus cereus yielded only compound 2.
- The study successfully identified and characterized these microbial transformation products of Danazol.
Conclusions:
- Microbial fermentation offers a viable route for the biotransformation of Danazol into new steroid derivatives.
- The specific microbial species employed significantly influence the outcome of the fermentation process and the types of metabolites produced.
- These findings contribute to the understanding of steroid metabolism by microorganisms and may open avenues for the development of new steroid-based drugs or synthetic methodologies.