N-α-Boc-N-ε-Z-L-lysine N-carboxyanhydride is a lysine-derived amino acid N-carboxyanhydride (NCA) bearing an N-α Boc protecting group and an N-ε Z (benzyloxycarbonyl/Cbz) protecting group, with the lysine side chain terminating in a protected amine. The NCA functionality contains a cyclic activated carboxyanhydride that can undergo ring-opening to generate peptide-bond formation while the amino and carboxyl equivalents are masked as part of the NCA and protected amide/carbonate groups, and the stereochemistry corresponds to the L-lysine precursor indicated in the name. This activated intermediate is used in peptide and polypeptide synthesis approaches that employ NCAs, providing a protected lysine residue for controlled incorporation into growing chains under conditions compatible with Boc and Z group stability.
CAT No: CP01427
N-α-Boc-N-ε-Z-L-lysine N-carboxyanhydride is a lysine-based amino acid N-carboxyanhydride (NCA) in which the α-amino group is converted to the reactive carboxyanhydride and both the α and ε nitrogens are masked as Boc and benzyloxycarbonyl (Z) protecting groups, respectively. The L-lysine stereocenter is retained, and the molecule presents a protected side-chain primary amine that remains nucleophilically dormant under conditions compatible with NCA handling. The NCA functional group enables controlled ring-opening polymerization and peptide bond formation, while the Boc and Z groups support orthogonal deprotection logic for stepwise synthesis. The resulting reactivity profile makes the compound a chiral, protected lysine building block suited for peptide construction and downstream functionalization where selective exposure of the ε-amino functionality is required.
1. Peptide Synthesis
N-α-Boc-N-ε-Z-L-lysine N-carboxyanhydride is applied in peptide building block preparation and NCA-mediated peptide coupling workflows, where the carboxyanhydride moiety participates in nucleophilic ring opening to generate growing amide chains. The presence of Boc on the α-nitrogen and Z on the ε-nitrogen preserves orthogonal protection during chain assembly, helping maintain lysine side-chain integrity while the backbone forms. The protected ε-amino group can be unmasked later to enable lysine-specific conjugation, crosslinking, or further derivatization without disrupting earlier coupling steps. The compound thus supports synthesis of protected lysine-containing peptides and peptidomimetics that require controlled deprotection and side-chain availability.
2. Peptidomimetics And Polymerization
N-α-Boc-N-ε-Z-L-lysine N-carboxyanhydride serves as a chiral NCA monomer for generating lysine-rich peptide mimetics and polypeptide-like materials through NCA chemistry. The NCA ring-opening reactivity allows incorporation of protected lysine residues into polymer backbones, while Boc and Z groups regulate side-chain amine chemistry during material formation. The protected side-chain can later be selectively deprotected to introduce cationic handles, attachment points for functional ligands, or sites for post-polymer modification. Downstream processing can yield functional polymeric scaffolds and peptide-analog materials for chemical biology tool development and materials-focused research.
3. Bioconjugation Chemistry
N-α-Boc-N-ε-Z-L-lysine N-carboxyanhydride is suitable for preparing lysine-bearing intermediates used in bioconjugation strategies that rely on orthogonally protected amines. The ε-Z protecting group and Boc-protected α-amino logic help ensure that amide formation occurs without premature side-chain reactivity, enabling a defined conversion to a lysine-functional peptide or linker precursor. Subsequent deprotection can expose the ε-amino group for conjugation chemistries such as amide coupling, carbamate formation, or nucleophilic attachment to activated electrophiles. The resulting lysine-functional constructs can be used to generate defined conjugates for biochemical research reagents and analytical labeling workflows.
4. Protected Amino Acid Intermediates
N-α-Boc-N-ε-Z-L-lysine N-carboxyanhydride functions as a protected amino acid intermediate for constructing lysine-containing fragments where controlled nitrogen protection is central to synthetic planning. The combination of Boc and Z protecting groups provides a practical orthogonal scheme: the α-protecting group and ε-protecting group can be removed under compatible conditions to reveal specific reactive amines at different stages. The NCA format also supports incorporation into peptide fragments with preserved stereochemistry, reducing the risk of racemization that can occur in less controlled amino acid activation routes. The compound can therefore be employed to prepare defined protected lysine building blocks, peptide segments, and stereochemically consistent intermediates for fine chemical synthesis.
5. Process Chemistry Intermediate
N-α-Boc-N-ε-Z-L-lysine N-carboxyanhydride is relevant to process chemistry and specialty chemical production as a manufacturable chiral NCA intermediate for peptide and peptidomimetic supply chains. The molecule's protected functional groups (Boc and Z) stabilize the lysine side-chain during upstream handling while the NCA moiety provides a predictable activation mode for downstream coupling steps. The stereodefined L-lysine core supports consistent product profiles in scale-up contexts where stereochemical fidelity and functional group compatibility are important. The compound can be integrated into industrial intermediate preparation for producing protected lysine residues, peptide building blocks, and polymerizable monomer feeds used in applied peptide science and industrial chemical manufacturing.
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