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Amino Acids ; 24(3): 289-91, 2003 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-12707811

RESUMO

The paper describes two methods of the synthesis of ethyl (3R, 4S)- and (3S, 4S)-4-[(benzyloxycarbonyl)amino]-5-[( tert-butyloxycarbonyl)amino]-3-hydroxypentanoates, useful for the syntheses of edeine analogs. Differently N-protected (S)-2,3-diaminopropanoic acid was used as a substrate in both procedures. The absolute configuration of newly generated asymmetric carbon atoms C-3 in beta-hydroxy-gamma, delta-diamino products was assigned by means of (1)H NMR spectroscopy after their transformation into corresponding piperidin-2-ones.


Assuntos
Diamino Aminoácidos/síntese química , Ácidos Pentanoicos/síntese química , Diamino Aminoácidos/química , Espectroscopia de Ressonância Magnética , Ácidos Pentanoicos/química , Estereoisomerismo
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