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. Author manuscript; available in PMC: 2008 Dec 10.
Published in final edited form as: Carbohydr Res. 2007 Aug 19;342(17):2575–2592. doi: 10.1016/j.carres.2007.08.003

Scheme 5.

Scheme 5

The reaction scheme for the exchange of hydrogen with solvent deuterium at the C-2 carbon of dR5P in a Maillard reaction with an amine. 1H NMR analysis shows full loss of C-2 hydrogens over a period of approximately 10 h at 37 °C, thus indicating the sequence can occur twice to replace both hydrogens with deuterium.