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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1989 (1989), S. 151-158 
    ISSN: 0170-2041
    Keywords: Antiprogestational activity ; Steroids, 11β-aryl-substituted ; Steroids, 14,17-ethano-bridged ; [4 + 2] Cycloaddition of steroidal 14,16-dienes ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis of 14,17-Bridged 11β-ArylsteroidsThe search for new progesterone antagonists led to the synthesis of 14,17-bridged 11β-arylsteroids. The key step was a stereo- and regioselective [4 + 2] cycloaddition of electron-deficient olefins to steroidal 14,16-dienes. The resulting new structures were examined with respect to progesterone receptor binding and to anti-progestational activity.
    Notes: Auf der Suche nach neuen Progesteron-Antagonisten wurden 14,17-überbrückte 11β-Arylsteroide synthetisiert. Schlüsselschritt des Verfahrens war die stereo- und regioselektive [4 + 2]-Cycloaddition elektronenarmer Olefine an steroidale 14,16-Diene. Die auf diese Weise zugänglichen neuen Strukturen wurden auf Progesteronrezeptor-Affinität und antigestagene Wirkung geprüft.
    Type of Medium: Electronic Resource
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