Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active ingredients for central nervous system agents and antidepressants. Its structural motif is valuable in creating enantiomerically pure compounds, which enhances drug efficacy and reduces side effects. Commonly employed in asymmetric synthesis routes where the (S)-configuration plays a critical role in biological activity. Also utilized in the preparation of ligands for catalytic applications and in the manufacture of fine chemicals requiring high optical purity.