N-α-Z-N-ε-Boc-L-lysine N-carboxyanhydride is a lysine-derived amino acid N-carboxyanhydride (NCA) bearing an Nα benzyloxycarbonyl (Z) protecting group and an Nε tert-butoxycarbonyl (Boc) protecting group, with the lysine side chain containing a terminal ε-amino functionality protected as Boc. The NCA structure features a reactive carboxyanhydride ring derived from the amino acid carboxyl group while retaining the protected amine substituents, and the molecule is specified as the L-lysine stereochemical form in the product name. This NCA is used as a precursor for controlled peptide synthesis and polymerization-type chemistry in which the carboxyanhydride ring undergoes ring-opening to generate peptide-bond-forming growth while the Z and Boc groups maintain chemoselectivity toward the protected lysine side chain.
CAT No: CP01459
N-α-Z-N-ε-Boc-L-lysine N-carboxyanhydride is a lysine-derived amino acid N-carboxyanhydride (NCA) bearing orthogonal protecting groups on the side-chain and α-amino functionality. The structure incorporates a Z (benzyloxycarbonyl) group on the α-amino site and a Boc group on the ε-amino side chain, while the NCA ring activates the amino acid for ring-opening polymerization and peptide bond formation. The stereochemical configuration at the lysine α-carbon is retained as L, providing predictable stereochemical outcomes in downstream peptide sequences and side-chain positioning. The activated carbonyl within the NCA framework can undergo controlled nucleophilic ring opening under peptide-synthesis conditions, enabling direct incorporation of the protected Lys residue into growing peptide chains while maintaining compatibility with orthogonal deprotection strategies.
1. Peptide Synthesis
N-α-Z-N-ε-Boc-L-lysine N-carboxyanhydride is used in peptide building workflows where NCA chemistry supports rapid coupling to amine nucleophiles for protected Lys residue incorporation. The α-amino activation and the orthogonally protected side-chain ε-amino group (Z at α and Boc at ε) allow selective deprotection and subsequent functionalization without cross-reactivity between protecting groups. The L stereochemistry at the lysine center is carried through during nucleophilic ring opening, supporting stereodefined peptide construction for sequence-specific studies. The resulting protected peptide fragments can be carried into standard amide coupling or fragment assembly steps, making the NCA a practical intermediate for protected amino acid synthesis and peptide analog preparation.
2. Peptidomimetics Construction
N-α-Z-N-ε-Boc-L-lysine N-carboxyanhydride serves as a chiral, protected lysine source for peptidomimetic and constrained scaffold synthesis where side-chain ε-amino functionality must remain masked during scaffold assembly. The Boc-protected ε-amino group can be deprotected under conditions compatible with Z removal strategies, enabling downstream attachment of electrophiles, acyl groups, or linkers at the lysine side chain. The NCA activation supports incorporation into peptide-like backbones, facilitating the construction of lysine-containing peptidomimetics that retain defined stereochemistry and amide connectivity. The protected Lys unit can then be transformed into functional handles for further medicinal chemistry exploration, chemical biology probes, or structure-activity relationship libraries.
3. Bioconjugation Chemistry
N-α-Z-N-ε-Boc-L-lysine N-carboxyanhydride is applied in bioconjugation design pipelines where lysine residues are required as controlled attachment points for biomolecule labeling and linker installation. The orthogonal protecting-group pattern helps manage chemoselectivity: Boc masking of the ε-amino group can be removed to generate a single reactive amine site for conjugation while the Z group can be preserved until later steps. NCA-based incorporation into protected peptides or peptide fragments enables generation of defined conjugation motifs with stereochemically consistent lysine positioning. Downstream derivatives can be used to prepare labeled peptides, affinity handles, or conjugation-ready intermediates for biochemical research and applied molecular labeling workflows.
4. Pharmaceutical Manufacturing
N-α-Z-N-ε-Boc-L-lysine N-carboxyanhydride is relevant to industrial peptide intermediate preparation where protected lysine residues must be introduced under scalable, process-compatible peptide synthesis conditions. The NCA functionality supports ring-opening incorporation into protected peptide chains, while the Z and Boc groups provide orthogonal protection to control deprotection order during manufacturing of peptide-based intermediates. The L configuration and protected side-chain amine reduce ambiguity in downstream transformations, supporting consistent sequence fidelity in peptide fragment production. The resulting protected peptide building blocks can be further processed into drug-discovery candidates, peptide reagents, or manufacturing-grade intermediates for specialty chemical production.
5. Process Chemistry Intermediate
N-α-Z-N-ε-Boc-L-lysine N-carboxyanhydride is used as a chiral amino acid NCA intermediate in process chemistry for route design toward protected amino acid derivatives and peptide building blocks. The activated NCA ring provides a predictable transformation mode for converting lysine-protected scaffolds into chain-extended products using amine nucleophiles, aligning with industrial preferences for controllable reaction manifolds. The presence of orthogonal Z and Boc protecting groups supports staged deprotection and side-chain modification strategies, which can be integrated into manufacturing sequences to minimize protecting-group scrambling. The compound can therefore function as a key intermediate for fine chemical synthesis and industrial preparation of lysine-containing protected peptides and derivatives.
6. Analytical Research
N-α-Z-N-ε-Boc-L-lysine N-carboxyanhydride is suitable for analytical research contexts where defined, protected lysine-containing standards or reference fragments are required for method development. The compound's protected α- and ε-amino functionalities enable preparation of peptide standards with controlled fragmentation behavior in LC-MS and predictable chromatographic retention compared with unprotected lysine derivatives. Orthogonal protection allows generation of specific deprotected forms on demand, supporting calibration of analytical workflows for peptide coupling, deprotection monitoring, and impurity profiling. The stereodefined L lysine center and NCA-derived connectivity make it a useful precursor for constructing reference materials used in amino acid derivatization studies and peptide chemistry characterization.
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