Glutaryl-Leu-OH · 2 DCHA

Glutaryl-Leu-OH · 2 DCHA is a glutaryl-activated leucine carboxylic acid derivative supplied as a salt with two equivalents of dicyclohexylamine (DCHA). The molecule contains a chiral leucine stereocenter and a terminal carboxylic acid (Leu-OH) positioned for peptide coupling, while the glutaryl group introduces an additional carbonyl-rich linker that can participate in acyl-transfer chemistry and downstream amide formation. Salt formation with DCHA can improve handling of the acid form and can influence solid-state properties and reactivity consistency during protected amino acid synthesis and peptide building-block preparation. The presence of multiple carbonyl functionalities and a stereochemically defined amino acid core makes the compound a practical intermediate for constructing acylated peptides, spacer-bearing conjugates, and glutaryl-modified biomolecular scaffolds.

1. Peptide Synthesis

Glutaryl-Leu-OH · 2 DCHA supports peptide synthesis workflows where a leucine residue bearing a glutaryl-derived acyl handle is required for controlled N- or side-chain acylation patterns. The amino acid backbone includes a stereodefined leucine unit with a free carboxylic acid suitable for coupling after conversion to an activated derivative, while the glutaryl moiety provides an additional carbonyl array that can be carried through as a spacer or incorporated into the growing peptide architecture. Salt-associated carboxyl functionality can be managed through standard peptide coupling strategies to enable consistent formation of amide bonds and predictable incorporation of the chiral residue. Downstream use includes preparing glutaryl-linked peptide fragments and peptide analogs for scaffold assembly and subsequent functionalization.

2. Chemical Biology Conjugation

Glutaryl-Leu-OH · 2 DCHA is applicable to chemical biology programs that require glutaryl-containing linkers for conjugating amino acid-derived motifs to proteins, peptides, or affinity tags. The compound's glutaryl carbonyl pattern can serve as a reactive acyl component for forming stable amide linkages with nucleophilic handles on biomolecules, while the leucine stereochemistry helps preserve defined spatial presentation of the amino acid motif in conjugates. DCHA salt formation can aid reproducible handling during derivatization steps that generate conjugate intermediates for labeling and binding studies. Resulting products can include linker-bearing biomolecule conjugates used in molecular recognition assays, pull-down reagents, and mapping of interaction interfaces.

3. Process Chemistry Intermediate

Glutaryl-Leu-OH · 2 DCHA functions as a chiral amino acid intermediate for process chemistry intermediate preparation where a defined leucine stereocenter and an acylated glutaryl motif must be maintained through multistep manufacturing. The compound's acid functionality and multiple carbonyl groups enable conversion into activated forms for controlled amide bond formation, allowing integration into larger synthetic sequences that build peptide-like structures or acylated small molecules. Salt form with DCHA can be leveraged to improve material handling characteristics and to support scalable isolation of the acid-derived intermediate prior to coupling operations. Industrial downstream utility includes supplying consistent stereochemical building blocks for fine chemical synthesis and peptide-manufacturing pipelines that require glutaryl spacer incorporation.

4. Peptidomimetic Construction

Glutaryl-Leu-OH · 2 DCHA can be employed in peptidomimetic construction where a glutaryl-linked leucine unit contributes to backbone mimicry and linker-defined conformational effects. The stereogenic leucine center provides chiral information for stereochemically defined analogs, while the glutaryl-derived carbonyl framework can be retained as a spacer to modulate polarity, hydrogen-bonding capacity, and intramolecular organization in peptide analogs. Carboxylic acid functionality enables further derivatization into amide or ester forms that are compatible with iterative scaffold assembly and subsequent functional group transformations. Downstream outputs include glutaryl-modified peptidomimetics used as chemical probes, SAR-focused analog libraries, and intermediate precursors for more complex constrained structures.

5. Analytical Research Standards

Glutaryl-Leu-OH · 2 DCHA is suitable for analytical research and method development where a defined glutaryl-acylated leucine species is needed as a reference material for LC-MS, HPLC, or derivatization-based quantification. The compound's well-defined stereochemistry and multi-carbonyl composition provide characteristic fragmentation and retention behavior that can support identification of related amino acid derivatives, acylated intermediates, or coupling byproducts. DCHA salt form can also help generate consistent sample preparation conditions when comparing acid-derived and salt-derived species in analytical workflows. Resulting uses include calibrants for monitoring peptide coupling progress, verifying glutaryl-linked intermediate formation, and supporting impurity profiling in amino acid derivative synthesis.

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