Z-O-tert.butyl-L-tyrosine dicyclohexylamine salt is a protected tyrosine derivative in which the phenolic hydroxyl of L-tyrosine is masked as a tert-butyl ether and the amino acid is present as a Z-O-protected, salt-forming species. The molecule contains a free carboxylic acid and an amino functionality associated with dicyclohexylamine, while the tyrosine side chain bears an O-alkyl protecting group that reduces phenolic reactivity during peptide-coupling chemistry. As a protected amino acid salt, it is used as a stepwise building block for peptide synthesis and related amino acid derivative preparation, where the tert-butyl phenol protection supports chemoselective handling of the aromatic side chain and the salt form can influence solubility and formulation in synthetic workflows.
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