Used as a key intermediate in the synthesis of angiotensin-converting enzyme (ACE) inhibitors, such as Captopril, a drug for treating hypertension and heart failure. Its ketoester structure allows for selective chemical modifications, making it valuable in pharmaceutical manufacturing. Also employed in organic synthesis to build chiral molecules through asymmetric reduction or enolate chemistry. Commonly used in research settings for developing biologically active compounds and heterocyclic derivatives.