1-Boc-1,6-diazaspiro[3.3]heptane oxalate is a specialty chemical intermediate used primarily in pharmaceutical research and development. It features a rigid spirocyclic diazaspiro[3.3]heptane core with a Boc (tert-butoxycarbonyl) protecting group on one nitrogen, enabling selective reactions at the free amine. This structure is valuable for constructing constrained scaffolds in medicinal chemistry, enhancing the potency and selectivity of drug candidates targeting various therapeutic areas, including neurological disorders. It serves as a building block in the synthesis of complex organic and biologically active molecules, facilitating multi-step processes in drug discovery and peptide analog development.