(2s,3s)-3-Methylglutamic acid is a glutamic acid derivative featuring a side chain with an additional methyl substituent at the 3-position, placing it within the class of proteinogenic amino acid analogues. The molecule contains an amino group and a carboxyl group on the α-carbon framework, with the side chain bearing a second carboxyl functionality, and its stereochemistry is specified as (2s,3s) for the relevant stereocenters. As a free amino acid analogue, it is used as a defined building block in peptide and peptidomimetic synthesis and as a substrate-like reagent in structure-activity and enzyme-substrate studies where altered side-chain sterics and carboxyl spacing can be examined.
CAT No: CP08203
(2S,3S)-3-Methylglutamic acid is a stereodefined, non-proteinogenic glutamic acid derivative featuring a 3-methyl substituted side chain that distinguishes it from canonical glutamate building blocks. As a free amino acid, it presents the characteristic amino acid functionality (an amino group and a carboxylic acid-bearing side chain) while the added methyl substituent can influence conformational preferences and downstream derivatization behavior. This structure makes it a practical reagent for chemical synthesis, stereochemical studies, and the preparation of constrained glutamate analogs used in peptide and medicinal chemistry workflows.
1. Peptide Analog Building Blocks
(2S,3S)-3-Methylglutamic acid is used as a glutamate analog building block for the preparation of peptides and peptidomimetic structures where side-chain substitution is required to probe structure-property relationships. Research groups in peptide chemistry and medicinal chemistry incorporate this stereodefined amino acid into custom peptide sequences to evaluate how a methyl-substituted glutamate side chain affects local geometry, backbone/side-chain interactions, and overall conformational behavior. Because the compound retains glutamate-like functional groups, it is commonly selected when a glutamate motif is needed but with a defined steric and stereochemical modification rather than the native amino acid.
2. Pharmaceutical Intermediate Synthesis
(2S,3S)-3-Methylglutamic acid serves as a stereochemically defined intermediate for the synthesis of glutamate-derived small molecules and chiral intermediates in pharmaceutical intermediate development. Process and R&D chemists use it to access substituted glutamic acid frameworks that can be further elaborated into amide, ester, or other functional derivatives for library generation and lead optimization. The presence of both amino and carboxyl functionalities enables straightforward conversion into downstream coupling-ready or derivative forms, while the (2S,3S) configuration supports reproducible stereochemical outcomes in multistep synthetic sequences.
3. Chiral Reference And Stereochemical Studies
(2S,3S)-3-Methylglutamic acid is frequently employed as a chiral reference material and stereochemical control reagent in analytical method development and stereochemical characterization of related amino acid derivatives. Analytical chemistry teams use stereodefined standards to support LC-based separation development, chiral purity assessment, and confirmation of stereochemical identity for glutamate analogs and their derivatized forms. The defined (2S,3S) stereochemistry and glutamate-like functional groups make it particularly useful when researchers need an unambiguous benchmark for distinguishing closely related stereoisomers or substituted glutamic acid derivatives.
4. Constrained Ligand And Material Precursors
(2S,3S)-3-Methylglutamic acid is also used as a precursor for constructing constrained ligands and functionalized building blocks for biomaterials and chemical biology-relevant materials. Materials scientists and polymer/biomaterials developers incorporate glutamate-like motifs to introduce predictable charge and hydrogen-bonding patterns, while the 3-methyl substitution provides an additional steric element that can tune local packing and interaction strength. In practice, the amino acid's dual functional handles support conversion into derivative forms used for subsequent coupling, immobilization, or incorporation into larger architectures where stereochemical fidelity and side-chain substitution are important design parameters.
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