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'Biological Activities' in keywords Facet   section ZfN Section B  [X]
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1982 (1)
1979 (2)
1976 (1)
1Author    Nazmi Abd, Elatife Kassab, Sanaa Osman Abdallah, Hamed Abdel, Reheem Ead, Doreya ZakiRequires cookie*
 Title    Some New Tetrahydrothiopyrano[2,3-d]thiazole-2-thione Derivatives and their Biological Activities 3-Phenyl-2,4  
  Reference    (Z. Naturforsch. 31b, 376—379 [1976]; received August 14 1975) 
  Published    1976 
  Keywords    thiazolidinedithiones, 1, 4-Cycloaddition, Heterodienes, Synthesis, Biological Activities 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0376.pdf 
 Identifier    ZNB-1976-31b-0376 
 Volume    31 
2Author    F. I. Abdel-Hay, M. A. Omara, A. A. El-Barbary, M. El-BadawiRequires cookie*
 Title    Organophosphorus Compounds of Expected Biological Activity, Part II* Preparation of Thiourea Derivatives and N-Aryl-phosphorothiomonoamidates  
 Abstract    The examples of cyclodiphosphazanes so far studied do not contain any nuclei of biological interest [1]. In the present investigation we aimed to introduce ethyl p-amino-benzoate, 2-aminopyridine residues in the phosphazane molecule. For this purpose phos-phorus pentachloride was treated with ethyl p-aminobenzoate, p-anisidine, 2-amino-pyridine and 5-aminoquinoline to give l,3-di-j9-ethoxycarbonylphenyl-, l,3-di-j9-methoxy-phenyl-, l,3-di-2-pyridyl-and l,3-di-5-quinolinyl-2,2,2,4,4,4-hexachlorocyclo-diphos-phazane (la-d), respectively. The compounds la-d were treated with potassium thio-cyanate in acetone. The oily products formed were then treated with p-anisidine, ethyl-p-aminobenzoate and 2-aminopyridine whereupon solid products (2a-h) were obtained. The reaction probably takes place according to the following mechanism [2]. la: b: c: d: Ar 1 Ar C2H5OOCC6H4-(p) CH3OC6H4-(p) C5H4N-(2) C9H6N-(5) Ar Cl /N Cl ci >0< ci SCN NCS 2a: b: c: 
  Reference    Z. Naturforsch. 34b, 297—299 (1979); received October 16 1978 
  Published    1979 
  Keywords    Organophosphorus Compounds, Thiourea Derivatives, Biological Activity 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-0297.pdf 
 Identifier    ZNB-1979-34b-0297 
 Volume    34 
3Author    Hans Moser, Grety Rihs, Hanspeter Sauter, Entwicklung Forschung, PflanzenschutzRequires cookie*
 Title    Der Einfluß yon Atropisomerie und chiralem Zentrum auf die biologische Aktivität des Metolachlor The Influence of Atropisomerism and Chiral Centre on the Biological Activity of Metolachlor  
 Abstract    The four stereoisomers of the grass herbicide Metolachlor, the isomerism of which is based on a combination of a chiral centre and a chiral axis, were prepared, and their absolute configurations determined by X-ray analysis. The synthesis was achieved by using optically active starting materials and new optically active carbamates as intermediates. The herbicidal activity is mainly influenced by the chiral centre, the S-isomers being the most active ones. 
  Reference    Z. Naturforsch. 37b, 451—462 (1982); eingegangen am 20. August 1981 
  Published    1982 
  Keywords    Chloro-acetanilide, Metolachlor, Atropisomerism, Chiral Centre, Biological Activity 
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 TEI-XML for    default:Reihe_B/37/ZNB-1982-37b-0451.pdf 
 Identifier    ZNB-1982-37b-0451 
 Volume    37 
4Author    R. Tacke, M. Strecker, W. S. Sheldrick, E. Heeg, B. Berndt, K. M. KnapsteinRequires cookie*
 Title    Sila-Pharmaka, 14. Mitt. [1] Darstellung und Eigenschaften sowie Kristall-und Molekülstruktur von Sila-Difenidol Sila-Drugs, 14 th Communication [1] Preparation and Properties as well as Crystal and Molecular Structure of Sila-Difenidol  
 Abstract    Sila-difenidol (6 b), a sila-analogue of the drug difenidol (6 a), was synthesized according to Scheme 1. 6 b and its new precursors 3 and 5 were characterized by their physical and chemical properties, and their structures confirmed by elementary analyses, *H NMR and mass spectroscopy. 6 b crystallizes orthorhombic P 2i 2i 2i with a — 11.523(1), b = 14.366(4), c = 11.450(1) A, Z = 4, Dber = 1.14 gcm-3. The structure was refined to fi = 0.050 for 1897 reflexions. A strong nearly linear intramolecular 0-H---N hydrogen bond of 2.685 A is observed. The anticholinergic, histaminolytic and musculotropic spasmolytic activities of 6 a and 6 b are reported. 
  Reference    Z. Naturforsch. 34b, 1279—1285 (1979); eingegangen am 16. März 1979 
  Published    1979 
  Keywords    Sila-Difenidol, Syntheses, Crystal Structure, Molecular Structure, Biological Activity 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-1279.pdf 
 Identifier    ZNB-1979-34b-1279 
 Volume    34