Used primarily in peptide synthesis as a protecting group reagent, this compound enables selective amine protection through the Fmoc (fluorenylmethyloxycarbonyl) strategy. Its structure allows for efficient incorporation into heterocyclic scaffolds, making it valuable in the development of peptidomimetics and pharmaceutical intermediates. The carboxylic acid functionality permits further coupling reactions, facilitating solid-phase synthesis and the construction of complex organic molecules in medicinal chemistry research. It is especially useful in creating constrained ring systems for drug discovery due to the stability and orthogonality provided by the oxazepane core during multi-step syntheses.