Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the preparation of protease inhibitors and antiviral agents. Its cyclopropane core with functionalized vinyl and amino-protecting groups allows for selective transformations in multi-step organic syntheses. Commonly employed in medicinal chemistry for constructing constrained amino acid derivatives that enhance metabolic stability and bioavailability in drug candidates. The Boc-protected amine enables controlled deprotection and coupling reactions, making it valuable in peptide-based drug development.