This compound is primarily utilized in organic synthesis as a protective group for amines. Its structure allows it to be selectively attached to amine groups, shielding them during complex chemical reactions, particularly in peptide synthesis. The tert-butyl group provides stability under various reaction conditions, while the oxaspiro ring system offers a unique steric and electronic profile, making it suitable for specific transformations. After the desired reactions are completed, the protective group can be removed under mild acidic conditions, restoring the free amine functionality. This makes it a valuable tool in the development of pharmaceuticals and bioactive molecules, where precise control over chemical reactivity is essential.