Treatment of peptides containing an alpha-chloroglycine residue with trieth
ylamine and catalytic amounts of triphenylphosphine constitutes an efficien
t method for the stereoselective synthesis of amino acid and peptide dimers
bridged by a C=C-double bond. The dimers can be converted into novel pepti
de structures by standard methods of peptide synthesis. (C) 2000 Elsevier S
cience Ltd. All rights reserved.