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  • 1975-1979  (1)
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    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Syntheses of Cyclic Peptides from Glycine Partially Labeled with Deuterium and/or 13C and Two Pairs of ProlineFour cyclic peptides partially labeled with D and/or 13C (2a, 2b, 3a and 3b) have been synthesized for 1H-and 13C-NMR studies. In contrast to the syntheses of the unlabeled compounds the benzyloxycarbonyl group (Z) served for temporary protection of the imino function of proline. The deuterium content has been determined by mass spectroscopy and 1H-NMR analysis.
    Notes: Für 1H und 13 C-NMR spektroskopische Untersuchungen wurden vier partiell mit Deuterium und/oder 13 C-Isotopen markierte Cyclopeptide (2a, 2b, 3a und 3b) synthetisiert. Zum Unterschied zu den früheren Synthesen der nichtmarkierten Verbindungen diente die Benzyloxycarbonyl gruppe (Z) zur vorübergehenden Blockierung der Imino-Funktion des Prolins. Der Deuteriumgehalt wurde durch Massenpektrometrie und 1H-NMR-Analyse bestimmt.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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