Kolasa T, Gross E
Int J Pept Protein Res. 1982 Sep;20(3):259-66.
Dipeptides of threo- and erythro-beta-hydroxyaspartic acid were transformed into O-tosyl derivatives, which on base-catalyzed elimination gave aminofumaric acid derivatives. The possible mechanism of this process and the spectroscopic properties of the elimination products are discussed.