Used in pharmaceutical research as a key intermediate in the synthesis of potent antiviral agents, particularly in the development of hepatitis C virus (HCV) inhibitors. Its structure supports the design of NS5A protein inhibitors, which play a critical role in blocking viral replication. Due to its functionalized heterocyclic core, it enables high binding affinity and selectivity toward viral targets, making it valuable in optimizing drug candidates for improved efficacy and pharmacokinetic profiles.