L. Banfi et al., Passerini multicomponent reaction of protected alpha-aminoaldehydes as a tool for combinatorial synthesis of enzyme inhibitors, CHEM COMMUN, (11), 2000, pp. 985-986
Three-component Passerini condensation of N-Boc-alpha-aminoaldehydes with v
arious isocyanides and carboxylic acids leads, after Boc-deprotection/trans
acylation, to complex peptide-like structures containing an alpha-hydroxy-b
eta-aminoacid unit or, after oxidation, an alpha-oxo-beta-aminoacid unit.