Used as a key intermediate in the synthesis of phosphodiesterase inhibitors, particularly PDE5 inhibitors, which are important in the treatment of erectile dysfunction and pulmonary arterial hypertension. It serves as a building block in the preparation of active pharmaceutical ingredients due to its ability to undergo selective functionalization at multiple positions. Its structural features make it valuable in medicinal chemistry for developing compounds with high target affinity and metabolic stability. Also employed in research settings for designing novel heterocyclic compounds with potential biological activity.