Used as an intermediate in the synthesis of antiviral medications, particularly nucleoside analogs. It plays a key role in the development of drugs targeting RNA viruses by mimicking natural nucleosides, thereby inhibiting viral replication. Commonly utilized in the production of therapeutic agents for hepatitis and other viral infections. Its structure allows for selective activation in infected cells, improving efficacy and reducing side effects. Also investigated for use in cancer therapy due to its ability to interfere with DNA synthesis in rapidly dividing cells.