N-α-Boc-N-β-allyloxycarbonyl-L-2,3-diaminopropionic acid dicyclohexylamine salt is a protected, amino-acid-derived intermediate featuring the L-2,3-diaminopropionic acid backbone bearing two orthogonal nitrogen-protecting groups: an N-α tert-butoxycarbonyl (Boc) group and an N-β allyloxycarbonyl (Alloc) group. The molecule contains two amino functionalities as part of the protected diamino framework and a carboxyl group, while existing as a dicyclohexylamine salt that provides ionic association to the acidic site and can influence handling and solubility in synthesis. In peptide and peptidomimetic assembly workflows, the Boc/Alloc orthogonal protection pattern supports stepwise chemoselective deprotection to expose one amino group at a time for controlled coupling and for preparing more complex diamino-acid-containing structures.
CAT No: CP05811
N-α-Boc-N-β-allyloxycarbonyl-L-2,3-diaminopropionic acid dicyclohexylamine salt is an L-configuration diamino acid derivative in which the α-amino group is protected as a Boc carbamate and the β-amino group is protected as an allyloxycarbonyl (Alloc) carbamate. The molecule contains two stereochemically relevant amino-bearing positions that can be selectively unmasked through orthogonal deprotection strategies, while the dicyclohexylamine salt form improves handling and can influence crystallinity and solubility for synthetic workflows. The protected amine pattern supports controlled peptide coupling at the desired position, and the allyl carbonate functionality enables Pd(0)-mediated Alloc removal under conditions compatible with many peptide and protecting-group chemistries. The salt-associated amine counterion and the carbamate carbonyls create a defined reactivity profile suitable for downstream conversion into protected amino acid building blocks and derivatization intermediates for peptide science and process chemistry.
1. Orthogonal Protected Diamino Building Block
N-α-Boc-N-β-allyloxycarbonyl-L-2,3-diaminopropionic acid dicyclohexylamine salt is applied in orthogonally protected diamino acid synthesis for constructing peptide building blocks where selective deprotection is required. The Boc-protected α-amine and Alloc-protected β-amine provide two chemically distinct protection handles, enabling sequential unmasking to direct peptide coupling at either amino terminus while preserving the other as a carbamate. The allyl carbonate protecting group can be removed under orthogonal conditions to reveal a free amine without disturbing the Boc group, supporting stepwise assembly of dipeptide and oligopeptide motifs. The resulting protected diamino acid intermediate can then be carried into iterative peptide construction, fragment elaboration, and controlled generation of amino-functionalized scaffolds used in biochemical research and synthetic methodology development.
2. Peptide Coupling And Sequence Assembly
N-α-Boc-N-β-allyloxycarbonyl-L-2,3-diaminopropionic acid dicyclohexylamine salt serves as a peptide coupling reagent precursor in solid-phase or solution-phase peptide synthesis where a diamino residue is incorporated. The two protected amines allow chemoselective activation and coupling at the intended position after deprotection, while the carbamate carbonyls maintain stability under common coupling conditions. The L-configuration at the 2,3-diaminopropionic backbone supports stereodefined incorporation into peptide sequences and peptidomimetic analogs, which is relevant for maintaining consistent conformational and recognition properties in structure-activity relationship studies. Downstream, the orthogonally protected state enables controlled formation of N- and side-chain-linked architectures, supporting synthesis of branched peptides, constrained analogs, and amino acid-derived fragments for medicinal chemistry workflows.
3. Chemical Biology And Bioconjugation Handles
N-α-Boc-N-β-allyloxycarbonyl-L-2,3-diaminopropionic acid dicyclohexylamine salt is utilized in chemical biology for preparing amino-functionalized intermediates that can be converted into conjugation-ready motifs. The diamino acid framework supports conversion into selectively exposed primary amines after orthogonal deprotection, enabling subsequent attachment to activated esters, isothiocyanates, aldehyde-derived linkers, or other electrophiles used in labeling chemistry. The protected amine strategy helps manage chemoselectivity during synthesis of probes where one functional handle must remain masked while the other is transformed into a reactive group. The dually protected diamino residue can be incorporated into peptide-based tags, affinity ligands, or linker units that facilitate biomolecule labeling and controlled assembly of conjugates for analytical and biochemical investigations.
4. Peptidomimetics And Unnatural Amino Acid Design
N-α-Boc-N-β-allyloxycarbonyl-L-2,3-diaminopropionic acid dicyclohexylamine salt supports peptidomimetic construction and unnatural amino acid design where a stereodefined diamino building block is required. The orthogonal Boc/Alloc protection pattern enables iterative functionalization of one amine while maintaining the other as a protected carbamate, supporting formation of substituted diamino motifs that can introduce altered charge density, hydrogen-bonding patterns, or steric constraints. The protected amino acid derivative can be used to generate analogs with defined N-substitution patterns that are relevant for structure-activity relationship studies and molecular recognition optimization in drug discovery research. The resulting functionalized intermediates can feed into synthesis of constrained peptide mimics, branched pharmacophores, and scaffold fragments used in SAR-driven library preparation.
5. Process Chemistry Intermediate Preparation
N-α-Boc-N-β-allyloxycarbonyl-L-2,3-diaminopropionic acid dicyclohexylamine salt is relevant to process chemistry intermediate preparation for manufacturing protected amino acid building blocks with manageable handling properties. The salt form with dicyclohexylamine can be leveraged to improve isolation characteristics and downstream dosing into coupling or deprotection steps within a controlled synthetic route. The stability of Boc and Alloc carbamates under many synthetic transformations supports robust manufacturing sequences, while the orthogonal deprotection logic allows compartmentalized processing to minimize cross-reactivity between functional groups. The compound's defined stereochemistry and protected diamino functionality make it suitable for scale-up-oriented synthesis of peptide-grade intermediates and fine chemical production where reproducible protection/deprotection behavior is required.
6. Pharmaceutical Intermediate And Fine Chemical Synthesis
N-α-Boc-N-β-allyloxycarbonyl-L-2,3-diaminopropionic acid dicyclohexylamine salt is used in pharmaceutical intermediate workflows and specialty fine chemical synthesis that require a protected diamino acid precursor. The presence of two carbamate-protected amines enables controlled conversion into N-protected derivatives and subsequent derivatization into peptide coupling-ready forms, supporting manufacturing of intermediate fragments for active ingredient synthesis and related research materials. The allyl carbonate (Alloc) functionality provides a predictable route to generate a free primary amine for further functional group installation, while Boc protection can serve as a stable masking group during earlier synthetic steps. The stereodefined L-2,3-diaminopropionic backbone and orthogonal protection strategy align with common synthetic planning for producing amino acid-derived intermediates used in peptide science, peptidomimetic development, and applied chemical manufacturing.
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