Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of nicotinic acetylcholine receptor modulators. It plays a key role in creating analogs for neurological research, including potential treatments for cognitive disorders, neuropathic pain, and depression. The tert-butyl ester group allows for selective deprotection, enabling stepwise construction of complex molecules in medicinal chemistry. Commonly employed in solid-phase and solution-phase synthesis due to its stability and reactivity profile.