N-α-Z-N-ε-Boc-L-lysine amid is a protected lysine-derived amino acid amide featuring two orthogonal protecting groups on the side-chain and α-amino functionality, with the L-lysine stereochemical designation preserved in the backbone. The molecule bears a Z (benzyloxycarbonyl) group on the α-amino nitrogen and a Boc (tert-butoxycarbonyl) group on the ε-amino side chain, while the carboxyl group is converted to an amide, leaving the compound as an amino acid amide intermediate rather than a free amino acid or simple salt. In peptide and amide synthesis workflows, this protected amino acid amid can be used as a stepwise building block to control chemoselectivity during coupling reactions and to introduce a lysine-derived amide functionality for chemical biology, conjugation, or structure-activity studies.
CAT No: CP01457
N-α-Z-N-ε-Boc-L-lysine amid is an L-lysine-derived amide featuring a chiral α-carbon and a protected ε-amino side chain bearing orthogonal carbamate and benzyloxycarbonyl (Z) protection. The molecule contains an N-terminal Z-protected nitrogen, an ε-Boc-protected amine, and an amide functionality that modulates basicity and provides a stable handle for downstream coupling or fragment assembly. The presence of two distinct protecting groups enables controlled deprotection sequences, while the retained stereocenter supports stereochemically defined peptide and peptidomimetic construction. The functional group pattern supports peptide chemistry compatibility through amide-forming transformations and side-chain derivatization routes that preserve the lysine substitution pattern.
1. Peptide Synthesis
N-α-Z-N-ε-Boc-L-lysine amid is applied in peptide building workflows where orthogonally protected lysine is required at a defined position within a growing chain. The Z group on the α-nitrogen and the ε-Boc carbamate on the side chain allow selective activation and coupling while maintaining side-chain integrity during iterative peptide bond formation. The amide at the lysine nitrogen can serve as a protected lysine-containing fragment for constructing peptide analogs or for preparing lysine-substituted intermediates that undergo further functionalization. The stereochemically fixed L-configuration supports consistent incorporation into sequence-defined peptides and related synthetic targets, aligning with standard amino acid derivative strategies used for protected amino acid synthesis.
2. Side-Chain Functionalization
N-α-Z-N-ε-Boc-L-lysine amid is suitable for side-chain functionalization programs that require controlled exposure of the lysine ε-nitrogen after selective deprotection. The ε-Boc carbamate provides a stable protecting-group platform during chemical modifications, while later removal can reveal a reactive amine for acylation, sulfonylation, alkylation, or conjugation chemistry. The retained amide functionality and the Z-protected α-nitrogen help limit uncontrolled cross-reactivity, supporting cleaner derivatization of the lysine side chain. Downstream products can include lysine-bearing linkers, affinity handles, or labeled peptide fragments used in biochemical research intermediate preparation and synthetic organic chemistry.
3. Bioconjugation Chemistry
N-α-Z-N-ε-Boc-L-lysine amid is used in bioconjugation chemistry where lysine-based coupling motifs are required for attaching biomolecule-compatible tags. The orthogonal protection pattern enables stepwise generation of a single functional site, allowing conjugation chemistries that target the ε-amino group while keeping the α-nitrogen protected to reduce side reactions. The amide-containing lysine scaffold can function as a defined conjugation precursor for building peptide-based linkers, antibody or protein labeling reagents, and nucleophile-reactive intermediates used in chemical biology research. The L-lysine stereochemistry and protected-group control support reproducible incorporation of lysine motifs into conjugates that are subsequently used for biomolecule modification workflows.
4. Protected Amino Acid Intermediates
N-α-Z-N-ε-Boc-L-lysine amid is employed as a protected amino acid intermediate for manufacturing routes that require orthogonally protected lysine derivatives with controlled deprotection behavior. The combination of Z and Boc protecting groups supports sequential processing, where hydrogenolysis of the Z group and acid-mediated removal of Boc can be orchestrated to expose the desired nucleophile at each stage. The amide functionality can stabilize the nitrogen during handling and can be leveraged to tune reactivity for intermediate isolation and subsequent coupling operations. The resulting lysine-derived intermediate format is compatible with fine chemical synthesis and process chemistry intermediate preparation where protected amino acid chemistry and predictable functional group transformations are required.
5. Peptidomimetics And SAR Studies
N-α-Z-N-ε-Boc-L-lysine amid is applicable to peptidomimetic construction and structure-activity relationship studies that rely on lysine side-chain presentation in defined stereochemical contexts. The protected ε-amine supports installation of diverse side-chain substituents, enabling systematic variation of charge, hydrogen-bonding capacity, and linker length in analog libraries. The Z/Boc orthogonality can be used to manage functional-group exposure during scaffold elaboration, supporting the synthesis of lysine-containing fragments that can be assembled into larger peptidomimetic frameworks. The lysine amide scaffold also serves as a practical intermediate for generating SAR-oriented analogs and for producing chemically characterized building blocks used in molecular design and applied peptide science.
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