An efficient approach to N-acetyl-D-glucosaminuronic acid-based sialylmimetics as potential sialidase inhibitors

  • Mann M
  • Thomson R
  • Von Itzstein M
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Abstract

The synthesis of Neu5Ac2en mimetics as inhibitors of Vibrio cholerae sialidase is reported. A novel approach to the synthesis of β-glycosides of N-acetyl-d-glucosaminuronic acid, in six steps and good overall yield from N-acetyl-d-glucosamine, has been developed. The key synthetic step was the Lewis acid mediated O-glycosidation of methyl 1,3,4-tri-O-pivaloyl-N-acetyl-d- glucosaminuronate (11). Elaboration of glucosaminuronides 15 and 18 provided novel sialylmimetics 21 and 22, which showed inhibition of Vibrio cholerae sialidase. © 2004 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Carbohydrates
  • Sialic acids
  • Sialidases

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