Used primarily as a key intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds in the synthesis of complex organic molecules. Its indole core makes it valuable in pharmaceutical and agrochemical research, particularly for constructing bioactive compounds and functional materials. The boronate ester group allows for efficient and selective coupling with aryl or heteroaryl halides under mild conditions, making it a preferred building block in medicinal chemistry and drug discovery.