Synthesis and evaluation of new 4-phospho-D-erythronic acid derivatives as competitive inhibitors of spinach ribose-5-phosphate isomerase

Emmanuel Burgos, Laurent Salmon

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This paper reports the synthesis of new 4-phospho-D-erythronic acid derivatives, namely 4-phospho-D-erythronohydroxamic acid (1), 4-phospho-D-erythronohydrazide (2), and 4-phospho-D-erythronamide (3), and their kinetic evaluation as new competitive inhibitors of the isomerization reaction between D-ribose 5-phosphate and D-ribulose 5-phosphate catalyzed by spinach ribose-5-phosphate isomerase (RPI). By comparison to the only known RPI inhibitor, 4-phospho-D-erythronate (4, Ki=28μM, K m/Ki=270), the hydroxamic acid 1, obtained by an eight-step synthesis from D-arabinose, appears as a new potent high-energy intermediate analogue inhibitor of the isomerization reaction (K i=29μM, Km/Ki=260).

Original languageEnglish (US)
Pages (from-to)753-756
Number of pages4
JournalTetrahedron Letters
Issue number4
StatePublished - Jan 19 2004



  • Enzyme inhibitors
  • Hydroxamates
  • Hydroxamic acids
  • Phosphate sugars

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry

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