Used as a chiral building block in the synthesis of pharmaceuticals and biologically active compounds. Its stereochemistry makes it valuable in asymmetric synthesis, particularly in the development of enzyme inhibitors and receptor modulators. Commonly employed in the preparation of catalysts for enantioselective reactions. Also finds use in the design of peptidomimetics due to its structural similarity to amino acids. Its bulky mesityl group contributes to steric control in synthetic pathways, enhancing selectivity.