Used primarily as an intermediate in organic synthesis, especially in the development of pharmaceuticals. It serves as a building block for creating complex nitrogen-containing heterocycles, which are common in bioactive molecules. Its structure allows for selective modifications, making it valuable in medicinal chemistry for drug discovery. Commonly employed in the synthesis of protease inhibitors and central nervous system agents due to the stability and reactivity of the piperidine ring protected by the fluorenyl group. Also utilized in solid-phase peptide synthesis as a protecting group strategy when modified appropriately.