Used as a key chiral intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and central nervous system agents. Its stereochemistry allows for selective reactions in asymmetric synthesis, making it valuable in producing enantiomerically pure drugs. Commonly employed in the preparation of cyclopentane-based nucleoside analogs, which are important in antiviral therapies such as those targeting HIV and hepatitis viruses. Also utilized in the construction of complex organic molecules where controlled ring conformation and functional group positioning are critical.