This compound is widely utilized in the field of bioconjugation and drug delivery due to its versatile structure. The THP (tetrahydropyran) group serves as a protective moiety, ensuring stability during synthetic processes. The PEG4 (polyethylene glycol) spacer enhances solubility and reduces immunogenicity, making it ideal for improving the pharmacokinetic properties of therapeutic agents. The pyrrolidine ring, protected by a Boc (tert-butyloxycarbonyl) group, provides a reactive site for further functionalization, enabling the attachment of various bioactive molecules. The terminal CH2OH group allows for additional modifications or coupling reactions, facilitating the creation of complex molecular architectures. This chemical is particularly valuable in the development of targeted drug delivery systems, where precise modification and controlled release of active compounds are essential.