[GRAPHICS] Ring closing metathesis of diallylglycine 6 provided cyclic Z-olefin 7 in 80% yield, The reaction was promoted by substitution of the amide nitrogen with the 2,4-dimethoxybenzyl group allowing for the required cis diallylglycine amide rotamer, Removal of the protecting groups provided cyclic dipeptide 2, a constrained scaffold useful in peptidomimetic research.