Used in peptide synthesis as a protected amino acid derivative, enabling selective incorporation of beta-iodoalanine into peptide chains. The Boc and benzyl ester protecting groups prevent unwanted side reactions during coupling steps. The iodine atom serves as a handle for further modification via cross-coupling reactions, such as Suzuki or Heck reactions, allowing introduction of complex side chains or labeling with radioactive isotopes for imaging studies. Commonly applied in the development of bioactive peptides and pharmaceutical intermediates where precise structural control is required.