Boc-2-Iodo-L-Phenylalanine is a Boc-protected, non-natural amino acid derivative featuring an L-phenylalanine backbone with an iodine substituent at the 2-position of the side chain aromatic ring. The molecule contains a Boc-protected amino group and a free carboxylic acid, with the iodo-aryl functionality providing a halogenated handle that can participate in electrophilic substitution or serve as a site for further chemical elaboration while maintaining the stereochemical information indicated by the L designation. In peptide and amino acid chemistry workflows, this protected analogue is used as a building block for stepwise incorporation into protected peptide intermediates and for preparing aryl-functionalized derivatives used in structure-activity studies, chemical biology labeling, or synthetic diversification.
CAT No: CP15004
Boc-2-Iodo-L-Phenylalanine is a Boc-protected L-phenylalanine derivative bearing an iodine atom at the alpha (2-) position, providing a chemically distinct handle for downstream functionalization while maintaining the protected amino acid framework used in peptide chemistry. This stereodefined, protected amino acid building block is commonly selected when an iodinated residue is required for controlled incorporation into synthetic sequences or for subsequent conversion to other functional groups. In research and development workflows, the iodo substituent enables access to iodinated intermediates used in labeling, diversification, and structure-driven synthetic design.
1. Peptide Building Block Diversification
Boc-2-Iodo-L-Phenylalanine is used by peptide synthesis groups to introduce an iodinated phenylalanine residue into custom peptide sequences where the presence of iodine is a deliberate design element for later derivatization or analytical tagging. The Boc protection supports routine handling of the amino acid building block during protected-residue assembly workflows, while the 2-iodo functionality provides a chemically differentiated site that can be carried through peptide construction and then leveraged in downstream transformations. This makes the reagent relevant for researchers building iodinated peptides for method development, reference material generation, and sequence-specific chemical modification strategies.
2. Radiolabeling and Isotope-Compatible Intermediates
Boc-2-Iodo-L-Phenylalanine is frequently chosen in radiochemistry and isotope-compatible synthetic planning because the iodo group provides a direct entry point to iodine-based labeling concepts and iodinated intermediate preparation. In practice, teams developing iodinated standards, tracer precursors, or isotope-handling workflows use this building block to establish a defined iodinated motif early in the synthesis plan, improving reproducibility when downstream labeling or conversion steps are required. The Boc-protected amino acid form also supports integration into peptide-adjacent intermediate routes used by analytical chemistry and chemical biology groups that prepare iodinated compounds for instrument-based studies.
3. Medicinal Chemistry Side-Chain Functionalization
Boc-2-Iodo-L-Phenylalanine supports medicinal chemistry programs that require iodinated amino acid motifs as synthetic intermediates for structure-activity relationship (SAR) exploration and late-stage diversification. Organic synthesis teams leverage the 2-iodo functionality as a reactive handle to access alternative substituted derivatives that retain the amino acid backbone identity while enabling new substitution patterns for property tuning. Because the compound is already protected at the amino terminus, it is often incorporated into intermediate sequences where controlled functional group interconversions are needed without disrupting the protected amino acid framework.
4. Analytical Standard and Iodinated Reference Prep
Boc-2-Iodo-L-Phenylalanine is used to prepare iodinated reference materials and compositional standards for analytical method development, including LC-MS workflows that distinguish iodinated amino acid derivatives and iodinated peptide fragments. Analytical chemistry laboratories value the defined iodinated structure for calibration, response characterization, and confirmation of derivatization outcomes when monitoring iodinated species or conversion products. The Boc-protected form also helps maintain structural integrity during standard preparation steps, supporting reproducible generation of iodinated targets used in method validation and comparative analyses.
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