Used as a key chiral intermediate in the synthesis of antiviral drugs, particularly in the production of oseltamivir (Tamiflu), which is effective against influenza viruses. Its rigid cyclic structure and defined stereochemistry make it valuable for constructing complex molecules with high enantioselectivity. Also employed in the development of other pharmaceuticals and biologically active compounds where chiral control is critical. Commonly utilized in research settings for asymmetric synthesis and natural product development.