Used in peptide synthesis as a chiral building block for the preparation of structurally modified peptides. The Fmoc group enables solid-phase synthesis by allowing stepwise assembly with orthogonal protection. The (R)-2-methoxyphenylglycine moiety introduces steric and electronic features that can enhance peptide stability, influence conformation, or modulate biological activity. Commonly applied in the development of peptidomimetics and bioactive compounds where stereochemistry and aromatic substitution play critical roles in target binding.