Z-Lys(Aloc)-OH · DCHA is a protected lysine derivative bearing an Nε-(Aloc) allyloxycarbonyl protecting group and a benzyloxycarbonyl (Z) carbamate on the amino terminus, supplied as a dicyclohexylamine (DCHA) salt with the carboxylic acid. The molecule contains the lysine side chain with a terminal ε-amino functionality that is masked as the Aloc carbamate, while the α-amino and α-carboxyl groups are present in protected/ion-paired forms to control chemoselectivity during peptide assembly. Z-Lys(Aloc)-OH · DCHA is used as a building block for stepwise peptide synthesis and related amino acid derivative preparation, where the orthogonal allyl-based protecting group supports selective deprotection and incorporation of the lysine residue into larger peptide structures.
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