Stereoselective synthesis of bis(α-amino acid) derivatives isosteric of cysteine. Part 4

Enantiomerically pure α-alkyl derivatives of α,α′-diaminodicarboxylic acids isosteric of cysteine 8a,b,e, 9a,b,e and 10a,b,e have been synthesized starting from the glycine-derived chiral synthon (1′S,1″S)-1.