SB 209963 was produced in three steps starting from 17[3-carboxyandrost-4-en-3-one. A palladiumcatalyzed hydroxycarbonylation introduced the carboxylic acid under mild conditions without epimerization at C-17. This reaction represents the first example of hydroxycarbonylation of a vinyl halide under
3-Carboxy-20-keto steroids are dual uncompetitive inhibitors of human steroid 5α-reductase types 1 and 2
✍ Scribed by Dennis S. Yamashita; Dennis A. Holt; Hye-Ja Oh; Dinu Shah; Hwa-Kwo Yen; Martin Brandt; Mark A. Levy
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 321 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0968-0896
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✦ Synopsis
Steroidal 3-carboxy-20-ketones have been prepared within two structural series, the androsta-3,5-dienes and the estra-1,3,5-trienes, as potential inhibitors of types 1 and 2 steroid 5 alpha-reductase, the enzyme activity responsible for the final step in biosynthesis of dihydrotestosterone. These compounds are shown to be potent uncompetitive inhibitors of both human recombinant enzyme activities, defining a novel class of dual steroid 5 alpha-reductase inhibitors.
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