Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of selective serotonin reuptake inhibitors (SSRIs) and other central nervous system (CNS) active agents. Its spirocyclic structure provides conformational rigidity, which enhances binding selectivity to neurotransmitter receptors. Commonly employed in medicinal chemistry for optimizing drug candidates targeting depression, anxiety, and neurological disorders. Also utilized in research settings to explore novel psychoactive compounds due to its favorable pharmacokinetic profile and ability to cross the blood-brain barrier.