Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of biologically active molecules targeting central nervous system disorders. Its aldehyde functionality allows for further derivatization through reductive amination (forming C-N bonds) or condensation reactions (such as aldol for C-C bonds), enabling the construction of complex cyclic structures. The tert-butyl carbamate (Boc) group provides amine protection during multi-step syntheses, ensuring selective reactivity and improved yield in peptide-like frameworks. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its constrained cyclobutane ring, which enhances metabolic stability and influences conformational rigidity.