Phosphorylated sugars. Part 21. Synthesis of 3-deoxy-D-manno- and 3-deoxy-D-gluco-oct-2-ulosonic acid 5-(dihydrogen phosphates)

Abstract
The title compounds were obtained by base-catalysed condensation of 2-O–phosphoryl-D-arabinose with oxalacetate and separation of the isomers by ion-exchange chromatography.