D-2-aziridinecarboxylic acid is a D-configured, non-proteinogenic amino acid derivative featuring an aziridine ring at the 2-position and a carboxylic acid substituent, placing it in the class of strained-ring amino acid analogues used for peptide chemistry and chemical biology. The molecule contains a carboxyl group and a ring-constrained nitrogen within the aziridine, which together provide a defined stereochemical framework and a reactive, strained heterocycle that can participate in nucleophilic opening or derivatization under appropriate conditions. In research settings, it is employed as a building block or substrate analogue for preparing modified peptides and for structure-activity studies where aziridine-bearing side chains provide a chemical handle for labeling, conjugation, or reactivity mapping.
CAT No: CP20502
D-2-aziridinecarboxylic acid is a chiral, three-membered aziridine carboxylic acid bearing a strained ring that imparts high reactivity toward nucleophiles and ring-opening transformations. The molecule contains a carboxylic acid functional group suitable for conversion into activated esters or amide-forming derivatives, while the D-configured stereocenter governs the stereochemical outcome of downstream aziridine-opening and derivatization steps. The aziridine ring can participate in controlled N-alkylation and nucleophile addition chemistry, enabling access to amino acid-like motifs and substituted β-amino acid frameworks after ring opening. As a chiral aziridine-based intermediate, D-2-aziridinecarboxylic acid functions as a compact building block for synthetic organic chemistry, peptide-adjacent scaffolds, and process-relevant chiral intermediate preparation.
1. Chiral Building Block Synthesis
D-2-aziridinecarboxylic acid serves as a chiral aziridine carboxylic acid intermediate for stereocontrolled synthesis of substituted amine-containing frameworks. The D-stereochemistry and the ring strain of the aziridine enable stereodefined ring-opening reactions that can generate β-amino acid derivatives or protected amine intermediates after appropriate nucleophile selection. Carboxylic acid functionality supports conversion to acid chlorides, mixed anhydrides, or activated esters, facilitating downstream coupling into amide or ester-linked intermediates used in fine chemical synthesis. The resulting chiral products can be carried forward into medicinal chemistry fragments, peptidomimetic precursors, and other chiral building blocks where stereochemical fidelity is required.
2. Peptidomimetic Scaffold Construction
D-2-aziridinecarboxylic acid is applicable to peptidomimetic construction where aziridine-derived β-amino motifs can mimic amino acid side-chain geometry. The carboxylic acid group can be protected or activated to enable incorporation into peptide-like linkages, while the aziridine ring provides a handle for generating substituted amines that resemble amino acid functional groups after ring opening. N- and C-functionalization strategies can be designed to align with peptide coupling chemistry by converting the acid into protected forms and transforming the aziridine into a stable amine-bearing side chain. Peptidomimetic analogs prepared from this chiral intermediate can be used in structure-activity relationship studies and molecular design workflows that rely on controlled stereochemistry and defined amine positioning.
3. Protected Amino Acid Derivatization
D-2-aziridinecarboxylic acid supports protected amino acid derivative synthesis through its dual reactivity as both a carboxylic acid and a strained aziridine. The acid group can be esterified or converted into amide derivatives to introduce temporary protection compatible with multi-step synthetic sequences, while the aziridine ring can be transformed into N-protected amines or amino acid-like structures that integrate into protected amino acid libraries. Stereochemical control from the D-configuration can be propagated into the resulting substituted amine products, which may then be used as chiral building blocks for peptide coupling chemistry or for generating side-chain functionalized amino acid analogs. Downstream derivatization can yield intermediates suitable for assembling larger nitrogen-containing scaffolds used in biochemical research and industrial fine chemical routes.
4. Chemical Biology Reagent Development
D-2-aziridinecarboxylic acid can be employed in chemical biology reagent development where aziridine-based electrophiles enable covalent modification of nucleophilic biomolecular targets. The aziridine ring can undergo nucleophile-driven ring opening with amine or thiol-containing residues, while the carboxylic acid can be manipulated to tune solubility and conjugation chemistry through esterification, amidation, or linker attachment. Conjugation strategies can incorporate the chiral center to influence stereochemical outcomes of labeling and to support generation of defined adduct structures for analytical characterization. Resulting labeled or functionalized molecules can serve as tools in biochemical investigation, including mapping of reactive sites and preparation of defined biomolecule-modified standards for downstream analysis.
5. Pharmaceutical Intermediate Preparation
D-2-aziridinecarboxylic acid is suitable for pharmaceutical intermediate preparation within process chemistry and specialty chemical production due to its role as a compact chiral nitrogen-containing precursor. The carboxylic acid enables straightforward conversion into activated intermediates used to form amide or ester linkages, while the aziridine ring provides a controlled pathway to substituted amines that are common in drug-like scaffolds. D-stereochemistry can be carried through to downstream intermediates where stereochemical purity is important for consistent structure-function behavior in SAR studies. The compound can be integrated into manufacturing route design for chiral amine and amino acid-like building blocks used across fine chemical synthesis and industrial-scale chiral intermediate production.
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