Boc-2,4-Dimethy-D-Phenylalanine is a protected, non-natural amino acid derivative featuring a phenylalanine backbone bearing two methyl substituents at the 2- and 4-positions of the side-chain aromatic ring and a D stereochemical designation as indicated by the name. The molecule contains a Boc-protected amino group and a free carboxyl group, with the substituted phenyl side chain providing hydrophobic character and steric bulk that can influence conformational preferences in peptide frameworks. As a Boc-protected amino acid building block, it is used in peptide synthesis workflows to introduce this sterically modified, D-configured aromatic residue while maintaining chemoselectivity of the amine during stepwise assembly.
CAT No: CP13905
Boc-2,4-Dimethy-D-Phenylalanine is a Boc-protected, D-configured amino acid building block bearing a sterically demanding 2,4-dimethyl-substituted phenyl side chain. This non-proteinogenic, conformationally and sterically constrained residue is commonly used in peptide and peptidomimetic synthesis where backbone stereochemistry and side-chain substitution pattern are used to tune structure and chemical behavior. The Boc group provides a protected amino functionality for controlled stepwise coupling, making the compound a practical intermediate for assembling modified peptide segments in research and custom manufacturing workflows.
1. Peptidomimetic Segment Building
Boc-2,4-Dimethy-D-Phenylalanine is used as a protected residue for incorporating a D-amino acid into peptide-like structures, enabling researchers to introduce stereochemical inversion and steric bulk at the side-chain aromatic position. Peptide synthesis groups and custom peptide manufacturers commonly select this type of Boc-protected, non-natural amino acid building block when building segments for SAR-style libraries, where the 2,4-dimethyl substitution pattern is leveraged to modulate local sterics and the overall presentation of the phenyl ring. In downstream workflows, the Boc protection supports reliable stepwise assembly of modified sequences while preserving the residue's defined D configuration for subsequent deprotection and coupling steps.
2. Stereodefined SAR Libraries
Boc-2,4-Dimethy-D-Phenylalanine supports medicinal chemistry programs that generate stereodefined peptidomimetic and constrained peptide analogs for structure-activity relationship studies. Chemical biology and drug discovery teams often use D-configured, sterically substituted aromatic residues to systematically vary residue identity while maintaining a consistent synthetic handle for library production. The Boc-protected form is particularly convenient for iterative synthesis strategies used to compare analogs that differ at a single position, allowing the 2,4-dimethyl-phenyl side chain to be evaluated as a defined structural element rather than as a mixture of substitution patterns. This makes the building block a practical choice for researchers preparing analog panels intended for subsequent biological characterization and physicochemical profiling.
3. Protected Amino Acid Intermediate
Boc-2,4-Dimethy-D-Phenylalanine is also used as a pharmaceutical intermediate building block for producing specialty amino acid derivatives and protected peptide fragments that require a defined D-stereocenter and aromatic dimethyl substitution. Process development and specialty chemical manufacturing teams frequently rely on Boc-protected amino acid intermediates to standardize upstream inputs for downstream coupling or segment assembly, especially when the target structure depends on a specific side-chain substitution pattern. By supplying the residue in a protected, isolable form, the compound fits common development workflows where controlled handling of the amino functionality is required before incorporation into larger peptide constructs. This positioning is especially relevant for custom synthesis efforts that need consistent stereochemical identity and a stable protected format for intermediate-to-segment conversion.
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