Ho. Kim et al., MALIC-ACID - A CONVENIENT PRECURSOR FOR THE SYNTHESIS OF PEPTIDE SECONDARY STRUCTURE MIMETICS, Tetrahedron letters, 38(28), 1997, pp. 4935-4938
Syntheses of optically active ether-linked beta-lactams and aza-prolin
e analogues via 4-bromo-2-hydroxybutanoic acid esters derived from (S)
- or (R)-malic acid are described. From these intermediates peptide se
condary structure mimetics can be synthesized. (C) 1997 Elsevier Scien
ce Ltd.