Used as a protected amino alcohol building block in organic synthesis, particularly in pharmaceutical and medicinal chemistry. The tert-butyl carbamate (Boc) group provides stability under various reaction conditions while allowing selective deprotection to release the amine for further transformations. The triethylene glycol-like linker imparts water solubility and flexibility, making it valuable in the design of drug conjugates, prodrugs, and polyethylene glycol (PEG)-like spacers. Commonly employed in the synthesis of complex molecules where a hydrophilic, protected amine handle is required.