3-(((benzyloxy)carbonyl)amino)adamantane-1-carboxylic acid is an CBz-protected amino acid derivative with an adamantane skeleton, primarily used as a building block in organic synthesis. Its CBz group protects the amino group via a carbamate bond, thereby minimising side reactions in subsequent reactions. The adamantane skeleton provides distinct spatial arrangements and hydrophobic characteristics. Meanwhile, the carboxyl group can participate in reactions such as amide formation and esterification, facilitating the incorporation of the adamantane structure into other molecules or molecular frameworks.