Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of biologically active compounds where stereochemistry plays a critical role. Its structure incorporates a tetrahydropyran ring, which is commonly found in drug molecules due to its metabolic stability and favorable pharmacokinetic properties. The ester functionality allows for further chemical modifications, making it valuable in medicinal chemistry for creating analogs and derivatives. It is often employed in asymmetric synthesis to introduce chirality into target molecules, especially in the preparation of protease inhibitors and other therapeutic agents.