1 Introduction β-Amino acids serve as fundamental building blocks of life and perform vital functions in the fields of drug manufacturing, biochemistry, and organic synthesis [1-3]; notably, the C2, C3-disubstituted β2,3-amino acids could form more rigid spatial structures when incorporated into peptide chains [4, 5]. Typically, the spatial conformations of foldamers composed of β2,3-amino acids vary with their stereochemistry.