Synthesis and reduction of endothiodipeptides containing malonic acid derivatives

Article abstract of DOI:10.1016/S0040-4020(99)00084-8

Amides of malonic acid derivatives and protected dipeptides containing amine malonic acid have been synthesized and converted into the corresponding monothio analoga and endothiedipeptides. By reduction of the thioamides terminal protected β-carboxy amine derivatives were obtained. Reduction of endothiodipeptides containing amine malonic acid as the carboxy component resulted in protected Ψ[CH₂NH] pseudodipeptides for the use as dipeptide substitutes with proteolytic resistance.