Used as a key intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds in the synthesis of complex organic molecules. Commonly applied in pharmaceutical research and development for constructing indole-based scaffolds, which are prevalent in bioactive compounds and drug candidates. Its boronate ester group facilitates mild and selective coupling with aryl halides, making it valuable in the preparation of functionalized indoles for medicinal chemistry and materials science.