Used as a chiral auxiliary and intermediate in the synthesis of biologically active molecules, particularly in asymmetric synthesis where stereocontrol is critical. Its structure allows for selective transformations, especially in the preparation of β-amino alcohols and other nitrogen-containing compounds. The silyl protecting group enhances stability and solubility in organic solvents, facilitating multi-step synthetic routes. Commonly employed in medicinal chemistry for the development of protease inhibitors and other pharmaceuticals requiring high enantiomeric purity.