N-α-Z-N-γ-allyloxycarbonyl-L-2,4- diaminobutyric acid is a protected amino acid derivative featuring a 2,4-diaminobutyric acid backbone with two distinct amino groups and a side chain that bears an additional amine functionality, classifying it as a diamino acid intermediate for peptide-related synthesis. The molecule carries an N-α benzyloxycarbonyl (Z/Cbz-type) protecting group and an N-γ allyloxycarbonyl (Alloc-type) protecting group, providing orthogonal protection that can be manipulated to control chemoselectivity while retaining the free carboxyl and any remaining unprotected amino functionality; the L designation in the name specifies the stereochemical form at the alpha carbon. In synthetic workflows, this orthogonally protected diamino acid is employed as a stepwise building block in peptide synthesis and in the preparation of amino acid and peptide derivatives where selective deprotection and subsequent coupling at defined nitrogen sites are required for structural studies or chemical biology applications.
CAT No: CP05338
N-α-Z-N-γ-allyloxycarbonyl-L-2,4-diaminobutyric acid is a protected L-2,4-diaminobutyric acid derivative bearing two orthogonally protected amino functions: an N-α benzyloxycarbonyl (Z, Cbz) carbamate and an N-γ allyloxycarbonyl (Alloc) carbamate. The molecule retains a stereogenic center in the L-configuration and presents a second protected amine that can be selectively revealed or further functionalized under compatible deprotection conditions. The presence of carbamate-protected nitrogens and the allyl ester handle provides a controlled reactivity profile for peptide coupling planning, while the small diamino side chain supports incorporation into peptide-like scaffolds and branching amino acid motifs. This compound functions as a chiral, protected amino acid intermediate for downstream synthesis of protected diamino building blocks and for constructing defined peptide segments where orthogonal protection is required to manage sequential bond formation.
1. Orthogonal Protected Diamino Building Blocks
N-α-Z-N-γ-allyloxycarbonyl-L-2,4-diaminobutyric acid serves as a key orthogonally protected diamino building block in peptide chemistry and protected amino acid synthesis. The Z (Cbz) carbamate on the α-nitrogen and the Alloc carbamate on the γ-nitrogen enable stepwise N-deprotection and re-protection strategies without disturbing the remaining protected site. The L-stereochemistry supports stereodefined incorporation into peptide coupling sequences, while the diamino framework can be carried through as a controlled functional handle for subsequent amide formation or further derivatization. Downstream use includes preparation of selectively protected 2,4-diaminobutyric acid derivatives that can be used to build branching or polycationic peptide segments for chemical biology and synthetic methodology studies.
2. Peptide Coupling And Segment Assembly
N-α-Z-N-γ-allyloxycarbonyl-L-2,4-diaminobutyric acid is suitable for peptide building block preparation where selective amine availability governs sequential coupling and protecting-group choreography. The protected α-amine and protected γ-amine reduce side reactions during coupling steps, while orthogonal deprotection can expose one nitrogen at a time for controlled formation of dipeptide, oligopeptide, or peptidomimetic linkages. The carbamate protections also help maintain the integrity of the diamino side chain during standard peptide bond construction chemistries, supporting reproducible assembly of defined amino acid sequences. Resulting derivatives can be used to generate peptide analogs with tailored charge density and defined branching patterns, which are commonly required for structure-activity relationship studies and molecular design workflows.
3. Chemical Biology And Biomolecule Labeling
N-α-Z-N-γ-allyloxycarbonyl-L-2,4-diaminobutyric acid can be applied in chemical biology research as a protected precursor for introducing a defined diamino motif into peptide-based probes and conjugation-ready intermediates. The two protected nitrogens allow controlled unmasking to generate a site-specific amine functionality, which can then participate in subsequent amide coupling, urea/thiourea formation, or linker installation depending on the desired labeling chemistry. The L-configuration and rigidified amino acid backbone support incorporation into peptide scaffolds that maintain stereochemical fidelity during probe synthesis. Downstream utility includes preparation of labeled peptide conjugates and linker-bearing intermediates used for biomolecule modification, affinity reagent construction, and analytical probe development.
4. Peptidomimetics And SAR Scaffold Design
N-α-Z-N-γ-allyloxycarbonyl-L-2,4-diaminobutyric acid supports peptidomimetic construction and SAR studies by enabling controlled installation of a diamino side chain into bioactive-like frameworks. The orthogonally protected amino groups provide a handle for generating defined substitution patterns, including selective derivatization at one nitrogen while preserving the other for later functional group conversion. The small, stereodefined amino acid core can be incorporated into constrained peptide analogs where side-chain architecture influences molecular recognition and conformational preferences. Resulting products can feed into fragment-based molecular design and SAR workflows by supplying stereochemically consistent, derivatizable intermediates for systematic scaffold elaboration.
5. Process Chemistry Intermediate Preparation
N-α-Z-N-γ-allyloxycarbonyl-L-2,4-diaminobutyric acid is relevant to process chemistry and fine chemical synthesis as a protected chiral intermediate used to manage chemoselectivity in multi-step manufacturing routes. The carbamate protections on both amino sites reduce uncontrolled cross-reactivity, while the Alloc group provides a distinct deprotection handle that can be timed to downstream coupling or derivatization steps. The molecule's stereogenic L-center supports reproducible chiral building block handling in scale-up-oriented synthesis planning where stereochemical integrity must be maintained. Downstream use includes preparation of standardized protected diamino amino acid derivatives for peptide manufacturing workflows, specialty chemical production, and controlled generation of functionalized intermediates for further industrial-scale synthesis.
6. Amino Acid Derivatization and Side-Chain Functionalization
N-α-Z-N-γ-allyloxycarbonyl-L-2,4-diaminobutyric acid can be employed for amino acid derivatization and side-chain functionalization strategies that require sequential access to two amine sites. The Z and Alloc carbamates provide orthogonal protection that can be selectively removed to generate mono-amine or diamine derivatives for subsequent functional group transformations such as acylation, alkylation, or conjugation-linker attachment. The protected diamino side chain enables construction of cationic or multifunctional peptide-like motifs while limiting premature reactions during intermediate storage and transport. Resulting functionalized derivatives can be used to generate analytical standards, synthesis intermediates for complex peptide analogs, and downstream materials where defined amine functionality and stereochemistry are required.
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