Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of drugs targeting central nervous system disorders. Its structure allows for the formation of complex molecules with high biological activity. Commonly employed in the preparation of gamma-aminobutyric acid (GABA) analogs, which are important for treating neuropathic pain, epilepsy, and anxiety. Also utilized in medicinal chemistry for scaffold modification to enhance drug potency, selectivity, and metabolic stability. Its carboxylic acid functional group enables easy derivatization into amides, esters, and other pharmacologically relevant moieties.