N-α-Boc-N-β-2,4-dintrophenyl-D-2,3-diamiopropionic acid is a protected, non-proteinogenic amino acid derivative featuring a D-configured 2,3-diaminopropionic acid backbone bearing two amino substituents and a β-side chain substituted with a 2,4-dinitrophenyl group. The molecule contains an N-α tert-butoxycarbonyl (Boc) protecting group on the α-amino functionality, leaving the remaining amino group(s) free for further derivatization while the 2,4-dinitrophenyl substituent provides a strongly electron-withdrawing aromatic handle for analytical and conjugation-oriented workflows. In peptide and amino-acid chemistry, this protected diamino acid functions as a stepwise building block or intermediate for assembling substituted amino acid motifs and for preparing labeled or derivatized structures where the dinitrophenyl moiety enables spectroscopic detection or selective chemical modification.
CAT No: CP05818
N-α-Boc-N-β-2,4-dintrophenyl-D-2,3-diamiopropionic acid is a D-configured, diamino acid derivative in which the α-amino group is protected as a Boc carbamate and the β-amino functionality is masked with a 2,4-dinitrophenyl (DNP) group. The molecule contains two amino-derived reactive sites with distinct protection chemistries, alongside a carboxylic acid that can be activated for peptide coupling or converted into an amino acid ester intermediate. The DNP chromophore and electron-withdrawing aromatic system provide strong spectroscopic handles and can participate in selective deprotection or derivatization strategies, while the Boc group supports orthogonal protection schemes under standard peptide synthesis conditions. The presence of a chiral center at the D-2,3-diaminopropionic acid backbone makes the compound suitable as a stereodefined intermediate for constructing peptide-like structures and for downstream functional group transformations in synthetic and analytical workflows.
1. Protected Diamino Acid Synthesis
N-α-Boc-N-β-2,4-dintrophenyl-D-2,3-diamiopropionic acid is used in protected amino acid synthesis workflows where orthogonal amino protection is required for stepwise assembly. The Boc-protected α-amine and DNP-protected β-amine enable controlled sequential deprotection and subsequent coupling, while the free carboxylic acid supports activation to form amide bonds. The DNP group provides a stable, strongly absorbing aromatic handle that can be tracked during intermediate purification and can be removed under conditions compatible with peptide-building operations. The stereodefined D-configuration supports reliable incorporation into chiral peptide fragments and amino acid derivative libraries, supporting downstream synthesis of defined diamino acid motifs.
2. Peptide Coupling Building Blocks
N-α-Boc-N-β-2,4-dintrophenyl-D-2,3-diamiopropionic acid functions as a peptide building block precursor for constructing peptide bonds involving a diamino acid unit. The α-carboxyl group can be converted into activated derivatives for amide formation, while the Boc and DNP protections help regulate which amino site participates in coupling at each stage. The orthogonal protection pattern can be leveraged to generate selectively functionalized peptide analogs, including N-terminal or side-chain modified segments derived from D-2,3-diaminopropionic acid. The resulting protected peptide intermediates can be carried forward into solid-phase or solution-phase assembly strategies, providing stereochemically defined scaffolds for peptide science and synthetic methodology development.
3. Chemical Biology Labeling Reagents
N-α-Boc-N-β-2,4-dintrophenyl-D-2,3-diamiopropionic acid is applicable to chemical biology and analytical research where DNP chromophores serve as tagging or detection elements for amino-containing targets. The DNP-protected β-amine can act as a spectroscopic label during intermediate handling, and the protected amino acid framework can be used to prepare defined D-amino-containing conjugation precursors. The carboxylic acid and protected amines allow conversion into coupling-ready intermediates for attaching to biomolecule scaffolds through amide or amine-reactive linkages after appropriate deprotection. The stereochemical integrity of the D-2,3-diaminopropionic acid backbone supports preparation of chiral, amino acid-derived probes for structure-defined biochemical investigations and reagent standardization.
4. Process Chemistry Intermediates
N-α-Boc-N-β-2,4-dintrophenyl-D-2,3-diamiopropionic acid is suitable for process chemistry intermediate preparation where controlled protection and robust purification are required for multi-step manufacturing routes. The Boc carbamate and DNP aromatic protection provide chemically distinct deprotection profiles, supporting orthogonality in downstream steps that convert amino acid derivatives into protected peptide fragments or further functionalized intermediates. The acid functionality enables formation of salts, esters, or activated coupling species that can be integrated into scalable synthetic sequences for fine chemical production. The stable chromophoric DNP group can facilitate monitoring of intermediate transformations and can reduce ambiguity in reaction progress tracking during industrial amino acid derivative synthesis.
5. Analytical Research Standards
N-α-Boc-N-β-2,4-dintrophenyl-D-2,3-diamiopropionic acid is used in analytical research as a stereodefined, protection-defined diamino acid reference material. The DNP moiety provides strong UV/visible detectability, supporting method development for LC-based quantification of protected diamino acid intermediates and for monitoring deprotection or coupling steps. The presence of both Boc and DNP functionalities enables calibration of analytical workflows that distinguish between α- and β-amino protected states, which is relevant for impurity profiling and identity confirmation. The D-configured backbone supports stereospecific analytical validation when separating enantiomeric or diastereomeric amino acid derivatives in peptide synthesis and amino acid chemistry studies.
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