3-Fluoro-D-Phenylalanine

3-Fluoro-D-Phenylalanine is a D-configured phenylalanine analog bearing a single fluorine substituent on the aromatic ring, providing a distinct electronic and steric profile relative to native phenylalanine. This non-natural amino acid is frequently used in peptide and medicinal chemistry workflows where fluorinated aromatic residues are leveraged to probe structure-activity relationships, conformational effects, and binding-site interactions. Its stereochemical definition supports incorporation into defined peptide sequences and enables reproducible comparative studies in chemical biology and SAR programs.

1. Fluorinated Peptide Building Block

3-Fluoro-D-Phenylalanine is used as a site-specific amino acid building block for preparing fluorinated peptides and peptide analogs in custom peptide synthesis. Researchers commonly incorporate this residue to introduce a defined fluorinated aromatic side chain, enabling systematic evaluation of how aryl fluorination influences peptide conformation, local hydrophobicity, and interaction patterns within binding interfaces. The D-configuration supports designs that incorporate non-proteinogenic stereochemistry, which is often used to improve resistance to proteolytic degradation in peptide research programs and to generate stereochemically defined analog series for mechanistic or binding studies.

2. Medicinal Chemistry SAR Studies

3-Fluoro-D-Phenylalanine is widely applied in medicinal chemistry and peptidomimetic development as a fluorinated aromatic substituent for structure-activity relationship (SAR) investigations. Medicinal chemistry groups use this analog to modulate electronic properties of the phenyl ring and to create a chemically distinct residue that can be compared directly against non-fluorinated or differently substituted counterparts. The defined D-stereochemistry supports consistent analog generation when researchers are mapping the contribution of stereochemistry and aromatic fluorination to potency trends, selectivity profiles, and binding-site complementarity in lead optimization campaigns.

3. Chemical Biology Binding Probes

3-Fluoro-D-Phenylalanine is used in chemical biology to generate defined fluorinated peptide probes for studying molecular recognition and binding-site environments. By placing a fluorinated aromatic residue at a chosen position, researchers can create probes that provide a distinct chemical signature for downstream characterization and comparative interaction mapping. This amino acid is particularly valuable when probe libraries require stereochemically defined, non-natural residues to separate stereochemical effects from side-chain electronic effects, supporting more interpretable structure-function studies in receptor-ligand, protein-peptide, and biomolecular interaction research.

1. Effect of Short-Term Desiccation, Recovery Time, and CAPA-PVK Neuropeptide on the Immune System of the Burying Beetle Nicrophorus vespilloides

2. Myotropic activity and immunolocalization of selected neuropeptides of the burying beetle Nicrophorus vespilloides (Coleoptera: Silphidae)

3. Tachykinin-related peptides modulate immune-gene expression in the mealworm beetle Tenebrio molitor L

4. Adipose tissue is a key organ for the beneficial effects of GLP-2 metabolic function

5. 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