CAT No: CP02109
Boc-O-allyl-D-tyrosine is a D-tyrosine derivative bearing a Boc-protected amino group and an O-allyl protected phenolic side chain, providing orthogonal protection patterns commonly leveraged in peptide and peptide-segment assembly. The D-configuration supports incorporation of non-proteinogenic stereochemistry into synthetic peptides for structure-property studies, while the allyl-protected phenol enables controlled downstream deprotection and functionalization strategies. As a protected amino acid building block, it is typically used by peptide chemistry and pharmaceutical intermediate development teams that require reliable handling of the tyrosine side chain during coupling and purification.
1. D-Tyrosine Peptide Building Block
Boc-O-allyl-D-tyrosine is used as a protected building block for assembling peptides that incorporate D-tyrosine stereochemistry at defined positions. Peptide synthesis groups value the Boc-protected amino functionality for segment condensation and controlled N-terminal protection during intermediate preparation, while the O-allyl group keeps the phenolic side chain masked to prevent side reactions during coupling steps. This reagent is particularly relevant for custom peptide synthesis workflows where researchers need a tyrosine residue with a non-natural stereocenter and a protected phenol that can be revealed or further modified at a later stage.
2. Side-Chain Deprotection Control
Boc-O-allyl-D-tyrosine supports workflows that require delayed access to the tyrosine phenolic oxygen for subsequent derivatization after peptide assembly. In peptide chemistry and chemical biology development, the allyl-protected phenol is commonly selected to maintain side-chain integrity through purification and coupling, then enable conversion to a free phenol under conditions compatible with the rest of the peptide or intermediate set. This makes the reagent useful for preparing peptide intermediates used in structure-activity relationship studies, where side-chain functionalization timing can be critical for maintaining overall product quality and minimizing undesired oxidation or cross-reactivity.
3. Peptide Intermediate For Derivatization
Boc-O-allyl-D-tyrosine is frequently employed in the preparation of tyrosine-containing peptide fragments intended for downstream chemical modification, such as phenol-based conjugation or incorporation into functionalized peptide constructs. Pharmaceutical intermediate development teams and peptide manufacturing researchers use this type of protected amino acid to generate well-defined intermediates that can be carried through multiple synthetic steps before final side-chain activation. The combination of Boc on the amino group and O-allyl on the phenol supports practical handling during fragment synthesis, enabling consistent coupling performance and reducing the risk of premature side-chain reactivity that could complicate purification or downstream conjugation.
4. Non-Proteinogenic Stereochemistry Studies
Boc-O-allyl-D-tyrosine is a practical choice for researchers exploring the effects of D-amino acid incorporation into peptide scaffolds, including stereochemical control at tyrosine positions. Chemical biology and medicinal chemistry groups often prepare stereochemically defined peptide libraries or single-residue variants to evaluate how backbone chirality and side-chain stereochemistry influence conformation and chemical reactivity in synthetic systems. The reagent's protected phenol and protected amino group help maintain synthetic fidelity during assembly, making it suitable for producing D-tyrosine-containing peptide standards and research-grade intermediates used in comparative studies.
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