Used as an intermediate in organic synthesis, particularly in the preparation of amino acids and peptides. It serves as a building block in the synthesis of unnatural amino acids due to its ability to undergo alkylation at the alpha position, followed by hydrolysis and decarboxylation. Commonly employed in pharmaceutical research for constructing complex nitrogen-containing molecules. Also utilized in the development of biologically active compounds, including enzyme inhibitors and medicinal agents. Its reactivity makes it valuable in multi-step synthetic routes where controlled carbon chain extension is required.