Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. Its aldehyde group allows for further functionalization via reactions such as reductive amination or condensation, enabling the construction of complex drug molecules. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to mimic peptide bonds and enhance metabolic stability. Also utilized in the preparation of protease inhibitors and anti-inflammatory agents.