Norbornene-PEG-azide is a unique class of compounds that has gained significant attention in recent years. This compound is made up of a norbornene moiety, polyethylene glycol (PEG) linker, and an azide functional group. The azide group makes Norbornene-PEG-azide an ideal candidate for use in pharmaceutical research and development. The azide group is a versatile functional group that can be modified using copper-catalyzed azide-alkyne cycloaddition (CuAAC) chemistry, which allows for the attachment of a wide range of bioactive molecules to Norbornene-PEG-azide. Additionally, the PEG linker confers solubility and biocompatibility, making it suitable for use in drug delivery systems.