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  • 1
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Sila-Pharmaca, 211).  -  Preparation and Properties of Silicon Compounds with Potential Curare-Like Activity, IIThe potential curare-like silicon compounds 5a, 5c, 5d, 5g, 5h, and 9a-9d were synthesized. 1H-NMR spectroscopic investigations provided information about the conformations of 5a-5c in solution. The crystal and molecular structures 5c were determined by X-ray structural analysis. The muscle relaxing properties of 5a-5h and 9a-9d were investigated comparatively on mice (i. v., LD50 values). The observed structure-activity relationships are discussed with respect to the different covalent radii of the carbon and silicon atoms and the N…N distances resulting therefrom.
    Notes: Die potentiell curarewirksamen Silicium-Verbindungen, 5a, 5c, 5d, 5g, 5h und 9a 9d wurden dargestellt. 1H-NMR-spektroskopische Untersuchungen ergaben Informationen über die Konformationen von 5a-5c in Lösung. Die Kristall- und Molekülstruktur von 5c wurde röntgenstrukturanalytisch bestimmt. Die muskelrelaxierenden Eigenschaften von 5a-5h und 9a-9d wurden vergleichend an der Maus (i.v., LD50-Werte) untersucht. Die ermittelten Struktur-Wirkungs-Beziehungen werden in Hinblick auf die unterschiedlichen kovalenten Radien des Kohlenstoff-und Siliciumatoms und die hieraus resultierenden N…N-Abstände diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1982 (1982), S. 1706-1711 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Sila-Pharmaca, 27.  -  Preparation and Properties of Silicon Compounds with Potential Curare-Like Activity, IVThe synthesis of the organosilicon compounds 3a - d is described for the first time. They were characterized by their physical, chemical, and pharmacological properties. 3a - d are shortly acting muscle relaxants. Their detoxification is achieved by hydrolysis of the Si - OC bonds (“intended sites of cleavage“).
    Notes: Die Synthese der Organosilicium-Verbindungen 3a - d wird erstmalig beschrieben. Sie wurden durch ihre physikalischen, chemischen und pharmakologischen Eigenschaften charakterisiert. 3a - d wirken als „Kurzzeit-Muskelrelaxantien“, deren Entgiftung durch Hydrolyse der Si - OC-Bindungen (Sollbruchstellen) erfolgt.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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