This compound is primarily utilized in pharmaceutical research as a key intermediate in the synthesis of various biologically active molecules. Its structure is particularly valuable in the development of kinase inhibitors, which are crucial for targeting specific signaling pathways involved in diseases such as cancer, inflammation, and autoimmune disorders. Researchers leverage its pyrido[4,3-d]pyrimidine core to design compounds that can selectively inhibit enzymes like PI3K, mTOR, or CDKs, which play significant roles in cell proliferation and survival. Additionally, its chloro and isopropyl groups provide opportunities for further chemical modifications, enabling the creation of derivatives with enhanced potency and selectivity for therapeutic applications.