Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and neuroactive drugs. Its rigid adamantane-like structure enhances metabolic stability and bioavailability in drug candidates. Commonly employed in the preparation of adamantane derivatives that target ion channels and receptors in the central nervous system. Also utilized in the design of protease inhibitors due to its ability to mimic peptide motifs while resisting enzymatic degradation. Its carboxylic acid functionality allows for easy conjugation to other molecules, making it valuable in medicinal chemistry for building complex, biologically active compounds.