Used as an intermediate in pharmaceutical synthesis, particularly in the development of active pharmaceutical ingredients (APIs) that require piperazine backbone modifications. Its protected amine group allows selective reactions at other functional sites, making it valuable in multi-step organic syntheses. The ester group can be hydrolyzed to form carboxylic acid derivatives, enabling further conjugation or salt formation. Commonly employed in the preparation of drug candidates targeting central nervous system disorders, metabolic diseases, and infectious conditions. Also utilized in research settings for library generation in medicinal chemistry due to its structural versatility and compatibility with various coupling reactions.