L-δ-Hydroxynorvaline is an L-configured, proteinogenic amino acid analogue featuring a five-carbon (norvaline) backbone bearing a δ-position hydroxyl substituent on the side chain. The molecule contains a free amino group and a free carboxyl group, with the side-chain primary alcohol providing hydrogen-bonding and polarity that can influence peptide conformation and solubility when incorporated. It is used as a defined building block in amino acid and peptide synthesis and in structure-activity or chemical biology studies where hydroxyl-functional side chains are required for subsequent derivatization, conjugation, or analytical characterization.
CAT No: CP07502
L-δ-Hydroxynorvaline is an L-configured amino acid featuring a five-carbon side chain terminating in a hydroxyl group at the δ-position, alongside the α-amino and α-carboxylic acid functionalities. The stereogenic center at the α-carbon provides defined chirality for stereoselective peptide coupling and for downstream structure-dependent recognition in biochemical assays. The side-chain alcohol can participate in hydrogen bonding and can be selectively protected or derivatized to tune polarity, reactivity, and orthogonality during protected amino acid synthesis. As an amino acid building block and chiral intermediate, L-δ-Hydroxynorvaline can be converted into protected derivatives or activated forms that support amide bond formation and enable controlled functional group transformations on the side-chain hydroxyl.
1. Peptide Synthesis
L-δ-Hydroxynorvaline is applied in peptide synthesis as a chiral, side-chain functionalized amino acid building block for assembling peptide sequences that require a δ-hydroxyl group for hydrogen-bonding interactions. The α-amino and α-carboxyl groups enable standard peptide coupling chemistry, while the side-chain alcohol can be protected to prevent undesired O-acylation or side reactions during N-/C-terminal transformations. Protecting-group strategies such as N-protection of the amino group and hydroxyl protection on the δ-position support iterative solid-phase or solution-phase assembly and subsequent selective deprotection. The resulting hydroxyl-bearing peptide analogs can be used to probe sequence-dependent conformations and to generate peptide scaffolds for chemical biology and peptidomimetic design.
2. Side-Chain Functionalization
L-δ-Hydroxynorvaline is utilized in amino acid derivatization workflows where the δ-hydroxyl group serves as a handle for controlled chemical modification. The side-chain alcohol can be converted into ether, ester, or carbonate derivatives, enabling tuning of solubility and reactivity for subsequent conjugation or cross-coupling steps. Orthogonal protection of the hydroxyl relative to the α-amino group supports sequential functional group transformations without disturbing the peptide-ready stereocenter. Downstream products can include hydroxyl-activated intermediates for fragment elaboration, linker installation for biomolecule conjugation, and stereochemically defined analogs used in medicinal chemistry and SAR studies.
3. Chemical Biology Probes
L-δ-Hydroxynorvaline is suitable for chemical biology research as a stereodefined amino acid analog that introduces a δ-hydroxyl motif into peptides or small molecules to influence molecular recognition. The L-configuration and side-chain hydroxyl enable specific hydrogen-bonding patterns that can be leveraged to design probes for binding-site mapping, enzyme interaction studies, or substrate mimicry. Protected amino acid derivatives can be incorporated into peptide-based probes where selective deprotection yields a free hydroxyl for interaction with polar residues in target proteins. The hydroxyl-bearing products can then be further functionalized for tagging, affinity handles, or analytical detection, supporting structure-function investigations in applied biochemical research.
4. Enzyme Studies
L-δ-Hydroxynorvaline is employed in enzyme studies where δ-hydroxyl-containing amino acid residues may serve as substrates, inhibitors, or mechanistic probes for hydroxyl-sensitive active sites. The amino acid backbone supports incorporation into peptide substrates or peptidomimetic constructs, while the δ-alcohol can modulate binding through hydrogen bonding and can be used to explore tolerance to side-chain polarity changes. Protecting-group control during synthesis helps maintain integrity of the stereocenter and ensures that the hydroxyl functionality is presented in the intended oxidation state for biochemical assays. The resulting enzyme-interaction reagents can support mechanistic interpretation, including how side-chain hydroxyl positioning affects catalysis and substrate recognition.
5. Pharmaceutical Intermediate Preparation
L-δ-Hydroxynorvaline is applied in process chemistry and fine chemical synthesis as a chiral intermediate for manufacturing routes that require a hydroxylated amino acid building block. The presence of both α-amino and α-carboxyl functionalities supports conversion into protected amino acid derivatives and activated intermediates suitable for downstream amide formation under controlled conditions. The δ-hydroxyl group can be managed through protection and selective deprotection to align with orthogonality requirements in multi-step synthesis toward peptide-like intermediates or hydroxyl-rich fragments. The stereodefined nature of L-δ-Hydroxynorvaline can be leveraged to prepare consistent chiral inputs for industrial synthesis of amino acid derivatives, peptidomimetics, and other functional molecules used in applied chemical manufacturing.
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