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  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 330 (1988), S. 309-312 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1987 (1987), S. 153-160 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New Synthesis of the Corticosterone Side-ChainCondensation reactions between azlactone 2 and 17-ketosteroids 1 followed by opening of the azlactone ring with sodium methanolate yields methyl 20-benzoylamino-17(20)-pregnen-21-oates 6. Reduction of the ester and subsequent hydrolysis produce compounds with the corticosterone side-chain as well as a ring-closed product of new type.
    Notes: Kondensation des Azlactons 2 mit 17-Ketosteroiden 1, gefolgt von Öffnung des Azlacton-Ringes durch Natriummethylat führt zu 20-Benzoylamino-17(20)-pregnen-21-säure-methylester-Derivaten 6. Durch Reduktion des Esters und anschließende Hydrolyse sind Produkte mit Corticosteron-Seitenkette sowie ein neuartiges Ringschluß-Produkt zugänglich.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1983 (1983), S. 1001-1019 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: New 17-Spirosteroids, III. - Synthesis of Steroid-17-spiro-5′-(1′,2′,3′-oxathiazolidine) 2′-OxidesThe 17β-hydroxy-17α-(alkylaminomethyl)steroids 1 react with thionyl chloride, N-sulfinylamides 3, and N,N′-sulfinyldiamines 6 to give the steroid 17-spiro-5′-(1′,2′,3′-oxathiazolidine) 2′-oxides 2, a new class of 17-spirosteroids. The new spiro compounds are formed as diastereomeric mixtures. Depending on the type of the ring closure reagents different ratios of the diastereomers were found. Structure assignments of the isomers were established on the basis of the 1H NMR spectra.
    Notes: Aus den 17β-Hydroxy-17α-Hydroxy-17α-(methylaminomethyl)steroiden 1 wurden mit Thionylchlorid, N-Sulfinylamiden 3 und N,N′-Sulfinyldiaminen 6 die Steroid-17-spiro-5′-(1′,2′,3′-oxathiazolidin)-2′-oxide 2, eine neue Klasse des 17-Spirosteroide, hergestellt. Die neuen Spiroverbindungen entstehen als diastereomere Gemische. Je nach dem verwendeten Typ des Ringschlußreagenzes wurden verschiedene Diasteromeren-Verhältnisse gefunden. Die Strukturzuordnung der Isomeren erfolgte mit Hilfe der 1H-NMR-Spektren.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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