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'Structure activity relationship' in keywords Facet   section ZfN Section B:Volume 037  [X]
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1982 (2)
1Author    R. Tacke, A. Bentlage, W. S. Sheldrick, L. Ernst, K. StoepelRequires cookie*
 Title    Sila-Pharmaka, 24. Mitt. [1] Sila-Analoga von Nifedipin-ähnlichen 4-Aryl-2.6-cümethyl-1.4-dihydropyridin- 3.5-dicarbonsäure-dialkylestern, II Sila-Drugs, 24 th Communication [1] Sila-Analogues of Nifedipine-Like Di alkyl 4-Aryl-2,6-dimethyl-l,4-dihydropyridine- 3,5-dicarboxylates, II  
 Abstract    In the course of systematic studies on sila-substituted drugs the nifedipine-like 1.4-di-hydropyridine derivatives 4 a, 4 b and 4 c were prepared and investigated with respect to sila-substitution effects. By X-ray diffraction analyses 4 a, 4 b and 4 c were found to be isostructural. The C/Si-analogues exhibit similar spasmolytic activities (in vitro, guinea pig ileum), comparable with that of nifedipine. However, the compounds differ sub-stantially in their in vivo activity, as measured by the antihypertensive effect on the renal-hypertensive rat. The experimental results are discussed with respect to the carbon/silicon exchange. 
  Reference    Z. Naturforsch. 37b, 443—450 (1982); eingegangen am 25. September 1981 
  Published    1982 
  Keywords    Sila-Analogues of Nifedipine Derivatives, X-ray, Pharmacological Activity, Structure-Activity Relationships 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0443.pdf 
 Identifier    ZNB-1982-37b-0443 
 Volume    37 
2Author    Reinhold Tacke, Haryanto Linoh, MoayadT. Attar-Bashi, WilliamS. Sheldrick, Ludger Ernst, Roland Niedner, Joachim FrohneckeRequires cookie*
 Title    Sila-Pharmaka, 26. Mitt. [1] Darstellung und Eigenschaften potentiell curarewirksamer Silicium-Verbindungen, III Sila-Pharmaca, 26th Communication [1] Preparation and Properties of Silicon Compounds with Potential Curare-Like Activity, III  
 Abstract    The potentially curare-hke silicon compounds 8a-Sf were synthesized and investigated with respect to their structure-activity relationships. The conformations of the com-pounds in the solid state and in solution were studied by X-ray diffraction analysis (8a-8e) and *H NMR spectroscopy (8a-8f), respectively. The muscle relaxing properties of 8a-8f were investigated on the mouse. The observed structure-activity relationships are not in accordance with the classical "14 A model" for neuromuscular blocking agents. Einführung 
  Reference    Z. Naturforsch. 37b, 1461—1471 (1982); eingegangen am 19. April 1982 
  Published    1982 
  Keywords    Silicon Compounds, Curare-Like Activity, X-ray, Conformational Analyses, Structure-Activity Relationships 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-1461.pdf 
 Identifier    ZNB-1982-37b-1461 
 Volume    37