Educt for the γ-modification of glutamic acid, e.g. for obtaining the 1- and 2-adamantyl ester, acid-labile γ-carboxyl protecting groups. Feichtinger et al. obtained δ,ω,ω'-protected arginine from Z-Glu-OBzl via reduction to the alcohol followed by guanidinylation under Mitsunobu conditions. Additionally, Z-Glu-OBzl has been used as highly effective acyl donor in enzymatic peptide synthesis.