Used in peptide synthesis as a chiral building block for constructing complex bioactive molecules. The Fmoc group allows for mild, base-labile protection of the amine function, compatible with solid-phase peptide synthesis (SPPS). The (R)-configuration and the 2,3-dimethoxyphenyl side chain provide stereochemical and structural features useful in the design of enzyme inhibitors or receptor ligands, particularly in medicinal chemistry targeting neurological or metabolic pathways. Its aromatic substitution pattern can influence binding affinity and selectivity in drug candidates. Commonly employed in the development of peptidomimetics and pharmaceutical research where controlled stereochemistry and aromatic interactions are critical.