Used in peptide synthesis as a protected form of D-asparagine, ensuring selective reactions during the construction of peptide chains. It helps prevent unwanted side reactions by protecting the alpha-amino, carboxyl, and side chain groups. Commonly applied in the production of complex peptides for pharmaceutical research and drug development. The Z (Cbz) group protects the alpha-amino function, while the trityl (Trt) group protects the asparagine side chain amide, providing stability under acidic conditions and making it suitable for solid-phase peptide synthesis.