Elegant chemical methodology restricting the backbone flexibility of biologically active peptides has attracted growing interest. A practical synthetic strategy is presented to access ten-membered lactam peptide mimetics. Employing a ring-closing olefin metathesis as the key reaction step, the cyclic olefin moiety was obtained with cis configuration. Conformational investigations were performed with two model peptides.
Key words
peptide mimetics - cyclic olefins - ring-closing metathesis - conformational investigations - medicinal chemistry