(2R,3S)-3-Methylglutamic acid is a non-proteinogenic, α-amino acid derivative of the glutamic acid family featuring a branched side chain with a methyl substituent at the 3-position relative to the γ-carboxyl group. The molecule contains an α-amino group and a carboxylic acid, and its side chain bears an additional carboxyl functional group while the (2R,3S) stereochemical configuration specifies the relative arrangement of the α-carbon and the methyl-bearing stereocenter. As a free amino acid, it is used as a defined building block for peptide and amino acid derivative synthesis and for structure-property studies where side-chain branching and dual carboxyl functionality influence solubility, charge distribution, and conformational preferences of incorporated residues.
CAT No: CP08205
(2R,3S)-3-Methylglutamic acid is a stereodefined glutamic acid derivative featuring a methyl-substituted side chain that distinguishes it from proteinogenic glutamate while retaining the amino acid framework required for downstream chemical handling. Its defined (2R,3S) configuration makes it a useful building block for stereocontrolled synthesis of constrained analogs and for analytical work where stereochemistry and side-chain substitution affect chromatographic and mass-spectrometric behavior. Researchers typically select this compound when they need a glutamate-like scaffold with a modified side-chain steric/electronic profile for peptide-analog development or method development.
1. Peptidomimetic Building Blocks
(2R,3S)-3-Methylglutamic acid is used as a stereochemically defined building block for the preparation of peptidomimetics and glutamate analogs in medicinal chemistry and chemical biology programs. The methyl substitution at the side-chain position provides a controlled steric environment that can be leveraged to probe structure-activity relationships, conformational preferences, or side-chain recognition in receptor/ligand binding studies using synthetic peptide analogs. Custom synthesis teams and academic medicinal chemistry groups often incorporate this amino acid into short peptide-like scaffolds during analog library construction, where the ability to control stereochemistry is critical for reproducible structure-property comparisons.
2. Stereocontrolled Amino Acid Analog Synthesis
(2R,3S)-3-Methylglutamic acid serves as a practical precursor for generating stereodefined glutamate-derived intermediates used in advanced organic synthesis workflows. Pharmaceutical intermediate developers and specialty chemical manufacturers rely on such chiral amino acid derivatives to build substituted amino acid motifs that later feed into larger synthetic targets, including constrained amino acid fragments used in drug discovery chemistry. Because the compound is already configured at the relevant stereocenters, it supports downstream assembly of analogs where stereochemical integrity must be maintained through protection, coupling, and functional-group interconversions.
3. Analytical Reference and Method Development
(2R,3S)-3-Methylglutamic acid is frequently used as an analytical reference material for LC-MS and related chromatographic method development, especially when distinguishing closely related glutamate analogs or substituted amino acids. Analytical chemistry teams use stereodefined standards to validate retention behavior, confirm identity by mass, and support quantitative workflows such as calibration or verification of sample preparation performance. In metabolite-analog studies and synthetic impurity profiling, the defined side-chain methyl substitution helps differentiate this compound from unmodified glutamic acid or other methylated variants, improving confidence in analytical assignments.
4. Chiral Ligand and Material Precursor
(2R,3S)-3-Methylglutamic acid is also used as a chiral amino acid precursor for constructing stereodefined ligands and functional materials where glutamate-like functionality is beneficial. Research groups in biomaterials and surface chemistry may convert amino acid carboxyl/amine functionality into tethered motifs that contribute to binding, charge presentation, or scaffold organization on polymers and surfaces. This application is particularly relevant when a methyl-substituted glutamate analog is desired to tune steric accessibility and local microenvironment around the functional groups used for immobilization or further derivatization.
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