(S)-3-amino-4-[(S,S)-1-(-1-hydroxyethyl)alkylamino]-4--oxo-butyric acid compounds are non-nutritive sweeteners having favorable chemical and physiological properties.
A novel process for preparing alpha-aspartic acid amides, particularly those suitable as non-nutritive sweeteners. This process involves the coupling reaction of an alpha-aspartate ester and a beta-hydroxy primary amine. The ester is reacted with the amine, one of which is preferably in stoichiometric excess, in a liquid phase system to form the alpha-aspartic acid amide. The amide is then recovered from the liquid phase system.
(S)-3-amino-4-[(S,S)-1-(1-hydroxyethyl)alkylamino]-4-oxo-butyric acid compounds are non-nutritive sweeteners having favorable chemical and physiological properties.