Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its Boc-protected amine and free carboxylic acid functionalities allow for selective coupling reactions, making it valuable in peptide-based drug design. The 4-methyltetrahydropyran ring provides structural rigidity and influences metabolic stability, enhancing the pharmacokinetic properties of the final compound. Commonly employed in solid-phase and solution-phase synthesis for creating libraries of structurally diverse compounds in medicinal chemistry research.