Used as an intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research targeting central nervous system disorders. Its structure allows for selective modifications, making it valuable in developing protease inhibitors and receptor modulators. The nitrophenylsulfonyl group acts as a directing and activating moiety in asymmetric synthesis, facilitating carbon–heteroatom bond formation. Commonly employed in medicinal chemistry for constructing constrained diazepane scaffolds, which are known to enhance metabolic stability and binding affinity in drug candidates.