Z-N-Me-Asp(OtBu)-OH DCHA

Z-N-Me-Asp(OtBu)-OH DCHA, also known as N-α-benzyloxycarbonyl-N-methyl-L-aspartic acid tert-butyl ester dicyclohexylamine salt, is a specialized protected amino acid derivative widely utilized in peptide synthesis. Its unique structure features both N-terminal and side-chain protecting groups, specifically the benzyloxycarbonyl (Z) and tert-butyl (OtBu) groups, which provide stability and selectivity during complex synthetic procedures. The presence of the N-methyl modification further enhances its utility in constructing peptides with improved conformational rigidity and resistance to enzymatic degradation. As a dicyclohexylamine (DCHA) salt, this compound offers improved solubility and handling characteristics, making it a valuable intermediate for research laboratories focused on advanced peptide design and synthesis.

Peptide Synthesis: Z-N-Me-Asp(OtBu)-OH DCHA serves as a crucial building block in the solid-phase and solution-phase synthesis of peptides, particularly those requiring the incorporation of N-methylated aspartic acid residues. The N-methyl modification introduces conformational constraints within the peptide backbone, which can lead to enhanced bioactivity and proteolytic stability. Researchers employ this protected amino acid to introduce structural diversity and to modulate the biological properties of target peptides, facilitating the exploration of structure-activity relationships in various bioactive sequences. The dual protection of the α-amino and side-chain carboxyl groups ensures selective deprotection and elongation steps, thereby minimizing side reactions and maximizing yield.

Peptidomimetic Design: The compound is instrumental in the synthesis of peptidomimetics, which are molecules designed to mimic the structure and function of natural peptides while exhibiting improved pharmacological properties. By incorporating N-methylated aspartic acid units, scientists can create analogs that resist enzymatic cleavage and display altered receptor binding profiles. This approach is particularly valuable in the development of research tools for probing protein-protein interactions and in the design of molecular scaffolds with enhanced metabolic stability. Z-N-Me-Asp(OtBu)-OH DCHA enables the precise introduction of these modifications, supporting the generation of innovative peptidomimetic libraries for screening and optimization.

Combinatorial Chemistry: In the field of combinatorial chemistry, this protected aspartic acid derivative is frequently employed to expand the diversity of peptide libraries. The ability to incorporate N-methylated and side-chain protected residues increases the chemical space accessible to researchers, thereby improving the chances of identifying novel bioactive compounds. Automated synthesis protocols benefit from the compound's compatibility with standard peptide coupling reagents and its efficient deprotection profiles. As a result, it plays a pivotal role in high-throughput screening campaigns aimed at discovering new molecular entities with desirable biological activities.

Structure-Activity Relationship Studies: The use of Z-N-Me-Asp(OtBu)-OH DCHA is integral to investigating the effects of backbone modifications on peptide structure and function. By systematically substituting N-methylated aspartic acid residues into peptide sequences, researchers can assess changes in folding, stability, and interaction with biological targets. Such studies contribute to a deeper understanding of the molecular determinants of peptide activity and inform the rational design of next-generation biomolecules. The compound's robust protection scheme allows for precise control over the placement and timing of modifications during multistep synthesis.

Chemical Biology Research: The versatility of this protected amino acid extends to broader applications in chemical biology, where it is used to construct modified peptides for probing cellular processes and signaling pathways. The introduction of N-methyl groups and strategic protection of functional moieties enable the creation of probes and molecular tools with tailored properties, such as increased resistance to degradation or enhanced cell permeability. These features are particularly advantageous in studies requiring the delivery of peptides into complex biological environments or the development of affinity reagents for target identification and validation.

Academic and Industrial Research: Z-N-Me-Asp(OtBu)-OH DCHA is routinely utilized in both academic and industrial research settings focused on the synthesis of complex peptides and peptide-based materials. Its role as a protected intermediate streamlines the assembly of challenging sequences, supports the development of new synthetic methodologies, and aids in the production of custom peptides for a range of investigative purposes. By enabling the precise incorporation of noncanonical amino acid residues, this compound underpins advances in peptide chemistry and the ongoing exploration of novel bioactive molecules.

1. An Isolated TCR αβ Restricted by HLA-A* 02: 01/CT37 Peptide Redirecting CD8+ T Cells to Kill and Secrete IFN-γ in Response to Lung Adenocarcinoma Cell Lines

2. Urinary Metabolites Associated with Blood Pressure on a Low-or High-Sodium Die

3. Immune responses to homocitrulline-and citrulline-containing peptides in rheumatoid arthritis

4. The effect of sex on immune responses to a homocitrullinated peptide in the DR4-transgenic mouse model of Rheumatoid Arthritis

5. Cationic cell-penetrating peptides are potent furin inhibitors