Used in pharmaceutical research as a key intermediate in Suzuki-Miyaura cross-coupling reactions to build complex nitrogen-containing heterocycles. Its boronate ester group enables efficient carbon-carbon bond formation, making it valuable in the synthesis of bioactive molecules and drug candidates. Commonly applied in the development of central nervous system agents and kinase inhibitors due to the structural similarity of its pyrido-oxazine core to pharmacologically active scaffolds. Also utilized in medicinal chemistry for library diversification in early-stage drug discovery.