- Used in peptide synthesis as a building block to introduce cycloheptane rings into peptide chains, enhancing structural diversity. - Acts as a protecting group for amino acids during solid-phase peptide synthesis, ensuring selective reactions. - Applied in medicinal chemistry for designing cyclic peptides with improved stability and biological activity. - Utilized in research to study the effects of ring size on peptide conformation and function. - Helps in developing peptidomimetics for drug discovery and therapeutic applications.