Used in pharmaceutical research as a key intermediate for synthesizing bioactive molecules, particularly in the development of kinase inhibitors and antitumor agents. Its bromo-functionalized indolizine core allows for further cross-coupling reactions, enabling the construction of complex heterocyclic compounds. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to enhance binding affinity and selectivity in drug candidates. Also applied in the synthesis of fluorescent probes for cellular imaging, leveraging its favorable photophysical properties.