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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1984 (1984), S. 1308-1318 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Application of N-Tritylamino Acid 1-Benzotriazolyl Esters in Peptide SynthesisThe application of N-tritylamino acid 1-benzotriazolyl esters 2 in peptide synthesis is investigated using as model compounds leucine-enkephalin (18) and leucine-enkephalinamide (19). The reactions are performed in solution and on the surface of solids. New spectrophotometric methods, based on the facile cleavage of the N-trityl group and on the measurement of the absorbance of the released triphenylmethanol, are used to monitor the coupling steps and to determine the free amino groups on the solid carrier.
    Notes: Der synthetische Nutzen von N-Tritylaminosäure-(1-benzotriazolylestern) 2 beim Aufbau von Peptiden-wird am Beispiel von Leucin-Enkephalin (18) und Leucin-Enkephalinamid (19) untersucht. Die Synthese wird in Lösung und an Festkörpern durchgeführt. Neue spektrophotometrische Meßmethoden, die auf der leichten Abspaltbarkeit der N-Trityl-Gruppe basieren und bei denen die Absorption des frei gewordenen Triphenylmethanols bestimmt wird, dienen zur Verfolgung der Verknüpfungsschritte und zur Bestimmung der freien Aminogruppen am Festkörper.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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