Bz-Arg-betaNA · HCl

Bz-Arg-betaNA · HCl is an arginine-derived, N-benzoyl protected amino acid derivative bearing a β-amino acid framework and a terminal β-nitrogen nucleophile characteristic of betaNA-type functionality, supplied as the hydrochloride salt to stabilize the basic guanidinium-related region. The molecule contains a benzoyl (Bz) N-protecting group on the α-amino functionality, a chiral center at the amino acid backbone, and a side-chain functionality that can be engaged in peptide coupling chemistry after appropriate deprotection or activation. Salt formation with HCl increases handling stability and can modulate solubility in polar organic media used for peptide building block preparation. The combination of protected amine, basic side-chain character, and defined stereochemistry makes the compound suitable as a peptide synthesis intermediate and as a chiral amino acid reagent for downstream derivatization and substrate or probe construction.

1. Protected Amino Acid Building Block

Bz-Arg-betaNA · HCl is used in protected amino acid synthesis workflows where N-benzoyl protection supports controlled peptide coupling at the α-amino position. The β-amino acid backbone and the arginine-derived side-chain functionality enable incorporation into peptide-like sequences using standard amide-forming strategies after activation of the carboxyl group and, when required, selective management of the basic side-chain under salt and deprotection conditions. The hydrochloride form can be leveraged to improve reproducible handling during intermediate preparation, while the Bz group provides a predictable protecting-group handle for orthogonal deprotection planning. Downstream, the compound can serve as a defined stereochemical unit for constructing β-arginine-containing peptides and for generating libraries of β-amino acid analogs used in structure-activity relationship studies.

2. Peptide Coupling Chemistry

Bz-Arg-betaNA · HCl is applicable to peptide synthesis and peptide analog construction where compatibility with coupling reagents and protecting-group strategies is required for reliable chain extension. The N-benzoyl moiety directs acylation chemistry to the protected α-amino site, while the carboxyl functionality can be converted into activated intermediates for amide bond formation to generate C-terminal extension products. The arginine-like basic side-chain character can be managed through salt-state control and selective deprotection, supporting assembly of peptides that contain cationic residues or β-amino acid motifs. The resulting β-arginine peptide building blocks can be applied to biochemical research intermediate preparation, including generation of substrates for protease or peptidase studies and synthesis of peptide scaffolds for molecular recognition investigations.

3. Chemical Biology Probes

Bz-Arg-betaNA · HCl is suitable for chemical biology research aimed at producing amino acid-derived probes and peptide-based reagents that incorporate a cationic, arginine-like side chain. The defined β-amino acid stereochemistry and side-chain basicity can influence binding modes to nucleic acids, anionic biomolecules, or enzyme active sites, while the benzoyl-protected amine supports controlled functionalization steps toward conjugatable peptide constructs. The hydrochloride salt form can facilitate reproducible derivatization and subsequent conjugation by maintaining the basic functionality in a defined protonation state during intermediate handling. Downstream utility includes formation of labeled or affinity-tagged peptide analogs used in biochemical assays, immobilization chemistry, and mechanistic studies of substrate recognition.

4. Peptidomimetic And SAR Studies

Bz-Arg-betaNA · HCl is used in peptidomimetic construction and structure-activity relationship studies where β-amino acid incorporation can modulate conformational preferences and proteolytic stability. The protected arginine-derived framework supports systematic variation of side-chain presentation and backbone spacing, enabling synthesis of analog series that probe how cationic residue geometry affects molecular recognition. The Bz protecting group and salt-state behavior support stepwise synthetic design, including selective deprotection to reveal reactive amine functionality for further derivatization or conjugation. Resulting β-arginine-containing peptidomimetics can be employed as research-grade SAR intermediates for comparing binding and reactivity trends across structurally related scaffolds.

5. Process Chemistry Intermediate

Bz-Arg-betaNA · HCl is relevant to process chemistry intermediate preparation for fine chemical synthesis where defined protection and salt handling can improve reproducibility in multi-step manufacturing routes. The benzoyl-protected amine and the hydrochloride salt allow controlled management of reactive sites during purification and subsequent transformations, supporting scalable synthesis of protected β-amino acid building blocks. The compound's chiral amino acid nature supports stereochemically consistent downstream peptide assembly, reducing variability in intermediate quality for peptide manufacturing workflows. Industrially, the material can be positioned as a chiral amino acid intermediate for producing β-arginine-containing peptides, peptidomimetics, and related specialty chemical intermediates used in biochemical research supply chains.

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