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  • 1985-1989  (2)
  • 1987  (2)
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  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    The “normalizing factor” for the tomato mutant chloronerva. XXV. Synthesis of 2-Epinicotianamine and Nicotianamine (1987)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 329 (1987), S. 231-234 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 2-Epinicotianamine (6) was synthesized by stepwise reductive alkylation of ethyl (R)-2-azetidinecarboxylate (2) with ethyl (S)-4-oxo-2-(trifluoroacetylamino)butanoate (3); nicotianamine (8) was prepared in an analogous manner from (2S,αS)-α-amino-2-carboxy-1-azetidine-butanoic acid (7). 2-Epinicotianamine and nicotianamine showed the same biological activity with regard to the phenotypical normalization of the tomato mutant chloronerva.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19873290212
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  • 2
    Electronic Resource
    Electronic Resource
    Zur Darstellung und selektiven Reduktion von geschützten Endothiopeptiden (1987)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 329 (1987), S. 1039-1044 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: On the Synthesis and Selective Reduction of Protected EndothiopeptidesThe conversion of some protected peptides structurally related to nicotianamine into the corresponding endothiopeptides has been studied, using 2,4-bis(4-phenoxyphenyl)-1,3,2,4-dithiadiphosphetan 2,4-disulfide, a modified Lawesson reagent. Regioselectivity was observed. The possibility of selective reduction of the thioamide group in the presence of t-butyl ester and urethane groups was demonstrated.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19873290614
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    Paper (German National Licenses)
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