4-Boc-6-Hydroxy-[1,4]oxazepane is primarily utilized in organic synthesis as a key intermediate in the production of pharmaceuticals and bioactive compounds. Its Boc (tert-butoxycarbonyl) protecting group makes it particularly valuable in peptide synthesis, where it helps to safeguard reactive functional groups during complex reactions. The compound is also employed in the development of heterocyclic compounds, which are essential in drug discovery for their diverse biological activities. Additionally, it serves as a building block in the synthesis of oxazepane-based molecules, which are often explored for their potential therapeutic applications, including neurological and metabolic disorders. Its stability and reactivity make it a versatile reagent in medicinal chemistry research.