Used as a key intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive molecules. Its structure allows for selective functionalization, making it valuable in constructing complex cyclic frameworks. The Boc-protected cyclopentene moiety is often employed in peptide mimetics and medicinal chemistry to introduce constrained ring systems that enhance metabolic stability and binding affinity. Commonly utilized in multi-step syntheses where protection of amine groups is required, enabling controlled deprotection and coupling reactions.