Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the synthesis of complex nitrogen-containing heterocycles. Its boronate ester group facilitates palladium-catalyzed bond formation with aryl or vinyl halides, making it valuable in pharmaceutical and agrochemical research for building dihydropyridine scaffolds. The tert-butyl and ethyl protecting groups enhance stability and solubility during reaction processes. Commonly employed in medicinal chemistry for developing bioactive molecules and drug candidates.