Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules that require stereoselective control. Its protected hydroxyl and carboxyl functional groups allow for selective transformations, making it valuable in the preparation of pyrrolidine-based drug candidates. Commonly employed in medicinal chemistry for constructing enzyme inhibitors and receptor modulators, especially in central nervous system and metabolic disorder therapies. The tert-butyl and ethyl ester groups facilitate easy deprotection under mild conditions, enabling efficient downstream processing in multi-step organic syntheses.