General method for the synthesis of cyclic peptidomimetic compounds

A number of cyclic peptides, wherein the i and i+1 residue side chains are joined by an alkyl linker and a Weinreb amide is present at the C-terminus, were synthesized. Using LiCl to solubilize these peptides in THF the C-terminus can be readily converted to an activated carbonyl such as an aldehyde or ketone.