N-Boc-3-ethyl L-Norvaline is a branched hydrophobic amino acid derivative offering steric modulation in peptide design. The Boc protection stabilizes the residue during coupling steps. Researchers employ it to examine helix propensity and hydrophobic-core packing. Its structure supports creation of constrained backbone environments.
CAT No: R2112
CAS No:35264-04-1
Synonyms/Alias:N-Boc-3-ethyl L-Norvaline;35264-04-1;Boc-Diethylglycine;(S)-Boc-2-amino-3-ethyl-pentanoic acid;(S)-2-((tert-Butoxycarbonyl)amino)-3-ethylpentanoic acid;(2S)-3-ethyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoic acid;(2S)-2-{[(tert-butoxy)carbonyl]amino}-3-ethylpentanoic acid;(2S)-2-[(TERT-BUTOXYCARBONYL)AMINO]-3-ETHYLPENTANOIC ACID;MFCD07369172;SCHEMBL7273189;IWFUADFCRJVRNH-VIFPVBQESA-N;DB-320988;CS-0283450;F79685;EN300-3225613;(S)-Boc-2-Amino-3-ethyl-pentanoic acid (Boc-L-Nva(3-Et)-OH);
N-Boc-3-ethyl L-Norvaline is a synthetic amino acid derivative featuring a tert-butyloxycarbonyl (Boc) protecting group on the alpha-amino function of 3-ethyl L-norvaline. As a non-proteinogenic, aliphatic amino acid analog, it is valued for its structural versatility and compatibility in peptide synthesis workflows. The presence of the Boc group confers enhanced stability and orthogonal protection, making it a preferred building block in solid-phase peptide synthesis (SPPS) and related organic synthesis applications. Its unique side chain structure enables the design of peptides with tailored physicochemical properties and biological profiles, supporting fundamental research and the development of novel biomolecules.
Peptide Synthesis: In peptide chemistry, N-Boc-3-ethyl L-norvaline serves as a protected amino acid monomer that facilitates the stepwise assembly of peptide chains. Its Boc-protected amine ensures selective deprotection under mild acidic conditions, allowing for compatibility with a wide range of coupling strategies. The 3-ethyl substituent introduces steric diversity into peptide backbones, which can be leveraged to modulate secondary structure, stability, or solubility of synthetic peptides. Researchers employ this derivative to incorporate non-natural residues, enabling the exploration of structure-activity relationships and the development of peptides with enhanced resistance to proteolytic degradation.
Structure-Activity Relationship Studies: The incorporation of 3-ethyl L-norvaline into peptide sequences provides a valuable tool for investigating the impact of side chain modifications on biological activity. By substituting canonical amino acids with this analog, scientists can probe the influence of hydrophobic bulk and conformational constraints on peptide-receptor interactions or enzymatic recognition. Such studies are essential for optimizing lead compounds in drug discovery pipelines or for engineering bioactive peptides with improved selectivity and potency in research settings.
Combinatorial Library Construction: The unique structural features of N-Boc-3-ethyl L-norvaline make it a useful component in the synthesis of combinatorial peptide libraries. Its inclusion expands the chemical diversity of peptide pools, increasing the likelihood of identifying novel ligands, enzyme substrates, or molecular probes. High-throughput screening of libraries containing this non-canonical residue can yield insights into binding motifs and functional domains, accelerating the discovery of peptides with desirable properties for biochemical assays and molecular biology research.
Peptide Backbone Engineering: The use of this Boc-protected amino acid analog enables the rational design of peptides with altered backbone conformations. Incorporating 3-ethyl L-norvaline can disrupt regular secondary structures such as alpha helices or beta sheets, providing a means to study folding dynamics or to generate peptides with unique three-dimensional architectures. Such engineered backbones are valuable in the development of peptidomimetics, molecular scaffolds, and tools for probing protein-protein interactions in vitro.
Analytical Method Development: N-Boc-3-ethyl L-norvaline is also employed as a reference standard or calibration compound in analytical chemistry, particularly in the optimization of chromatographic methods for peptide analysis. Its distinctive physicochemical properties enable the validation of separation protocols, assessment of detection sensitivity, and evaluation of derivatization strategies. By serving as a model compound, it supports the refinement of analytical workflows that are critical for quality control, structural elucidation, and purity assessment in peptide research and synthesis.
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