Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where cyclobutyl groups contribute to metabolic stability and improved binding affinity. Its amine functionality allows for coupling reactions in medicinal chemistry, making it valuable in creating novel drug candidates. Commonly employed in research settings for structure-activity relationship (SAR) studies due to the constrained cyclobutane ring, which influences conformation and bioavailability. Also utilized in the preparation of catalysts and chiral ligands for asymmetric synthesis.