Used primarily as an intermediate in organic synthesis, particularly in the development of pharmaceuticals. Its structural features make it valuable in constructing complex molecules with stereoselective control. Commonly employed in the synthesis of bioactive compounds, including enzyme inhibitors and receptor modulators. The tert-butyl and cyclopentyl groups contribute to steric bulk and lipophilicity, enhancing stability and influencing pharmacokinetic properties in drug design. Also utilized in peptidomimetic research to improve metabolic resistance and membrane permeability.