Boc-O-benzyl-L-Serine N-carboxyanhydride is a protected amino acid N-carboxyanhydride derived from L-serine, bearing a Boc group on the amino nitrogen and a benzyl-protected hydroxymethyl side chain. The molecule features the N-carboxyanhydride ring as a reactive carboxyanhydride functionality while retaining a carbamate-protected amine and an O-benzyl ether side-chain, with stereochemistry consistent with the L-serine precursor. In peptide chemistry, this N-carboxyanhydride is used as an activated serine building block for controlled incorporation of the protected Ser residue into peptide chains and for preparing peptide-related intermediates under carboxyanhydride-based polymerization or coupling conditions.
CAT No: CP01814
Boc-O-benzyl-L-Serine N-carboxyanhydride is a protected serine-derived N-carboxyanhydride (NCA) designed for controlled peptide bond formation via NCA chemistry. The L-serine stereocenter and side-chain hydroxyl are masked as an O-benzyl ether, while the amino functionality is incorporated into the NCA ring, enabling polymerization or peptide segment growth under standard NCA conditions. The Boc group on the serine side provides an additional protection handle that supports downstream transformations and segment coupling in peptide synthesis workflows.
1. NCA Peptide Segment Growth
Boc-O-benzyl-L-Serine N-carboxyanhydride is used by peptide chemists to build serine-containing peptide segments using N-carboxyanhydride reactivity, supporting rapid chain extension where NCA-based strategies are preferred. Researchers developing short to mid-length peptides for structure-activity relationship studies or for generating defined serine-rich motifs often select this monomer to ensure the side-chain remains protected during chain growth, minimizing side reactions from the serine hydroxyl. The Boc/O-benzyl protection pattern helps maintain side-chain integrity through segment assembly, which is particularly useful when the final peptide requires selective deprotection later in the workflow.
2. Protected Serine Building Block
Boc-O-benzyl-L-Serine N-carboxyanhydride serves as a protected serine building block for custom peptide manufacturing and academic peptide synthesis labs that require consistent incorporation of a protected serine residue. In practical peptide development, the O-benzyl ether protects the hydroxyl from undesired acylation or crosslinking during coupling steps, while the NCA format streamlines incorporation into growing peptide chains. This monomer is commonly chosen when downstream processing depends on preserving the serine side chain until a planned deprotection/coupling sequence, such as when preparing peptide intermediates for further functionalization or when assembling complex sequences with multiple protected residues.
3. Serine-Rich Peptide Materials
Boc-O-benzyl-L-Serine N-carboxyanhydride is also applied in the preparation of peptide-based materials where controlled incorporation of serine units is valuable for tuning hydrophilicity and surface chemistry after deprotection. Biomaterials groups and materials chemists frequently use NCA-derived peptide segments as precursors to peptide-based coatings, hydrogel-forming polymers, or modular building blocks that later undergo side-chain unveiling to introduce reactive hydroxyl functionality. By maintaining serine side-chain protection during polymer/segment formation, this NCA supports reproducible material precursor synthesis, followed by post-assembly processing that exposes functional groups for subsequent material modification steps.
4. Peptide Intermediate Development
Boc-O-benzyl-L-Serine N-carboxyanhydride is frequently selected for intermediate preparation in multistep peptide synthesis campaigns, especially when the target sequence is assembled in protected segments. Contract peptide synthesis teams and medicinal chemistry groups use NCA monomers to generate defined intermediates containing protected serine residues, which can then be carried forward into additional coupling, fragment condensation, or final deprotection. The combination of NCA reactivity with side-chain protection helps maintain sequence fidelity by reducing side reactions during intermediate formation, supporting reliable downstream assembly of full-length peptides and peptide conjugation precursors.
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