Used in pharmaceutical research as a key intermediate in the synthesis of bioactive molecules, particularly in the development of kinase inhibitors. It serves as a building block for compounds targeting cancer and inflammatory diseases due to its ability to interact with specific enzyme active sites. Its carboxylic acid group allows for easy conjugation, enhancing solubility and enabling further chemical modifications in drug design. Also explored in the preparation of PROTACs (proteolysis-targeting chimeras) for targeted protein degradation.