Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of phosphodiesterase inhibitors (PDE inhibitors). It plays a key role in creating active ingredients for drugs targeting respiratory diseases such as asthma and chronic obstructive pulmonary disease (COPD) by increasing cyclic AMP (cAMP) levels in cells, which promotes smooth muscle relaxation and reduces inflammation. Its structure allows for selective modification, making it valuable in optimizing drug potency and metabolic stability. Additionally, it is employed in research for central nervous system disorders, including depression and anxiety.