Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of nitrogen-containing heterocyclic compounds. Its spirocyclic structure and reactive nitrogen functionalities make it valuable in medicinal chemistry for constructing complex molecules with potential biological activity. It is also employed in research settings for the preparation of novel compounds in drug discovery programs, especially those targeting central nervous system disorders and enzyme inhibition. The hydrochloride salt form enhances solubility and stability, facilitating its use in aqueous reaction conditions.