Used as a reagent in medicinal chemistry for the introduction of the bicyclo[1.1.1]pentane (BCP) group into drug molecules. The BCP moiety serves as a bioisostere for phenyl and other aromatic rings, improving pharmacokinetic properties such as metabolic stability and solubility. It is particularly valuable in the design of agrochemicals and pharmaceuticals where enhanced physical and biological properties are required. The potassium trifluoroborate salt offers good stability and solubility, facilitating its use in cross-coupling reactions like Suzuki-Miyaura, enabling efficient carbon-carbon bond formation under mild conditions. Its application supports the development of novel compounds with optimized drug-like characteristics.