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  • Chemistry  (3)
  • 1995-1999  (1)
  • 1970-1974  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 30 (1995), S. 446-451 
    ISSN: 1076-5174
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The application of liquid chromatography/mass spectrometry (LC/MS) and LC/MS/MS with electrospray ionization to drug metabolism studies was investigated using S 9788 and various synthesized metabolic products as model compounds to assess the response characteristics with regard to compound lipophilicity and the influence of biological matrix components. The results obtained demonstrate the versatility of the electrospray ionization technique to analyse compounds of widely varying polarity and the power of MS/MS to identify unequivocally metabolic products. These techniques offer a very rapid screening procedure that can be used to identify metabolic products and thus provide important early metabolic information that can be used in the candidate drug selection programme. These procedures were then applied to an in vivo study sample and, using neutral loss MS/MS, it was possible to detect metabolites of S 9788 directly from a crude biological matrix (bile) without prior extraction or chromatography to confirm positively the identity of five important metabolites of S 9788 in the rat.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 395 (1973), S. 112-118 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Organo Thallium DithiophosphatesSynthesis and properties of the monophenyl- and the diphenylthalliumdithiophosphates are reported and the relative stability of the organothalliumderivatives of the type RnTI[S(S)P(OR′) (OR")]3-n is discussed.
    Notes: Es wird über die Darstellung und die Eigenschaften von Mono-phenyl- und Diphenylthallium -dithiophosphaten berichtet und die relative Stabilität von Organothalliumderivaten des Typs RnTl[S(S)P(OR′) (OR")]3-n is diskutiert.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 381 (1971), S. 226-234 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The electrochemical reduction of dialkylthallium(III) cations in aqueus buffer solutions and dimethylformamide yields by the first electron transfer the instable intermediate {R2Tl}, which in dependence of the reaction conditions is electrochemical reduced to Tl° or disproportionates to R3Tl and Tl°. Phenyl-substituted organothallium compounds are reduced to Tl° and (C6H5)2Hg in one step.
    Notes: Die elektrochemische Reduktion von Dialkylthallium(III)-Kationen in wäßrigen Puffersystemen und Dimethylformamid führt im Primärschritt zu {R2Tl}, das in Abhängigkeit von den Reaktionsbedingungen entweder elektrochemisch zu Tl° reduziert werden kann oder zu R3Tl und Tl° disproportioniert. Phenyl-substituierte Organothalliumverbindungen werden in DMF in einer Stufe zu Tl° und Diphenylquecksilber reduziert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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