Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of drugs targeting central nervous system disorders. Its structure, featuring a sulfone and ester functionality, allows for functionalization at multiple sites, making it valuable in medicinal chemistry for building complex molecules. Commonly employed in the preparation of protease inhibitors and kinase inhibitors due to its favorable stereochemistry and stability. Also utilized in agrochemical research for designing bioactive molecules with improved metabolic resistance.