Used in peptide synthesis as a protected form of L-DOPA, allowing selective reaction at other functional groups without interference from the catechol moiety. The Boc (tert-butoxycarbonyl) group protects the amino function, while the 3,4-dihydroxy side chain remains available for further modification or metal chelation in pharmaceutical intermediates. Commonly applied in the development of neurochemical probes and dopamine-related research compounds. Also utilized in the preparation of bioactive peptides targeting neurological disorders, where controlled deprotection and coupling are essential.