Boc-O-Dibenzyl-L-Serine methylester hydrochloride is a protected serine derivative in which the amino acid backbone is present as a methyl ester and the serine side chain is protected as a dibenzyl ether, while the alpha-amino group is masked by a Boc (tert-butoxycarbonyl) protecting group. The molecule bears a free carboxylate equivalent as a methyl ester, contains a Boc-protected nitrogen and an etherified hydroxymethyl side chain, and is provided as a hydrochloride salt that associates with the basic Boc-protected nitrogen/related basic site to form the salt form. In peptide and amino acid synthesis workflows, this structure functions as a stepwise coupling precursor by maintaining chemoselectivity through orthogonal protection of the amino and side-chain hydroxyl functionalities, and the methyl ester form supports controlled conversion to other carboxyl-activated intermediates for subsequent derivatization.
CAT No: CP01815
Boc-O-Dibenzyl-L-Serine methylester hydrochloride is a protected L-serine derivative designed for peptide and peptidomimetic synthesis, featuring a Boc-protected amino group, a methyl ester at the carboxyl terminus, and an O-dibenzyl side-chain protection that preserves the serine hydroxyl for later selective functionalization. The hydrochloride salt form improves handling of the amino-protected intermediate during coupling and downstream transformations. This reagent is commonly used by peptide chemists and medicinal chemistry teams to assemble protected serine-containing segments with controlled reactivity at the side chain.
1. Solid-Phase Peptide Segments
Boc-O-Dibenzyl-L-Serine methylester hydrochloride is used to prepare protected serine building blocks for peptide assembly workflows where a stable, side-chain-protected serine unit is required to prevent premature O-functionalization. Peptide synthesis groups incorporate this intermediate into custom peptide manufacturing and research-grade library synthesis to ensure orthogonal control over the serine hydroxyl, while the Boc and ester functionalities support reliable segment handling and condensation strategies. The dibenzyl-protected side chain is particularly valuable when the synthesis must tolerate standard coupling conditions without altering the serine oxygen.
2. Solution-Phase Peptide Synthesis
Boc-O-Dibenzyl-L-Serine methylester hydrochloride supports solution-phase peptide synthesis and segment condensation where protected serine residues are assembled into longer sequences under controlled conditions. Medicinal chemistry teams often rely on this type of protected serine intermediate to build defined peptide intermediates for SAR studies and lead optimization campaigns, keeping the serine side chain protected until the appropriate stage of deprotection and functionalization. The methyl ester form is also leveraged in workflows that require carboxyl-activated intermediates or controlled end-group reactivity during peptide fragment coupling.
3. Protected Serine Intermediate Supply
Boc-O-Dibenzyl-L-Serine methylester hydrochloride functions as a practical protected amino acid intermediate for downstream derivatization of serine-containing scaffolds, including preparation of defined peptide fragments and chemically modified serine residues. Pharmaceutical intermediate development groups use this reagent to standardize access to a consistent, side-chain-protected serine unit across multiple synthesis campaigns, reducing variability when producing analog series. The hydrochloride salt form further supports reproducible handling in routine intermediate preparation and scale-up within research and industrial synthesis settings.
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