N-α-Fmoc-N-δ-trityl-L-glutamine N-carboxyanhydride is a glutamine-derived amino acid N-carboxyanhydride (NCA) bearing an N-α fluorenylmethoxycarbonyl (Fmoc) protecting group and an N-δ trityl (trityl) protecting group on the side-chain amide nitrogen, with the glutamine skeleton retaining the α-amino and α-carboxyl connectivity characteristic of NCAs. The molecule contains the cyclic carboxyanhydride functional group that is reactive toward nucleophilic ring opening, while its protected amines prevent undesired side reactions during peptide chain growth and preserve chemoselectivity for the protected glutamine residue. As an NCA-format amino acid building block, it is used in peptide synthesis workflows to generate protected peptide segments under conditions compatible with NCAs, supporting preparation of glutamine-containing peptide intermediates for structure-activity studies, labeling, and downstream deprotection strategies.
CAT No: CP00817
N-α-Fmoc-N-δ-trityl-L-glutamine N-carboxyanhydride is a glutamine-derived amino acid N-carboxyanhydride (Gln NCA) designed for solid-phase peptide synthesis and related peptide-coupling workflows. The molecule encodes the L-glutamine stereochemistry at the α-carbon and presents a protected side-chain amide through an N-δ-trityl group, while the α-amino functionality is masked as an NCA to promote controlled ring-opening during peptide bond formation. The Fmoc group on the α-nitrogen supports orthogonal deprotection strategies, enabling sequential unmasking of the amine under standard base conditions while maintaining side-chain protection during chain elongation. Reactivity is dominated by the activated NCA carbonyl and the electrophilic anhydride-like ring, which can undergo nucleophilic attack by peptide-resin or growing peptide amines to form amide linkages, making the compound a chemically defined, chiral peptide-building intermediate for downstream peptide analog construction and synthetic methodology development.
1. Solid-Phase Peptide Synthesis
N-α-Fmoc-N-δ-trityl-L-glutamine N-carboxyanhydride is applied in solid-phase peptide synthesis where NCA chemistry enables rapid conversion of resin-bound or solution-phase amines into new amide bonds. The glutamine backbone includes an α-amino equivalent embedded in the N-carboxyanhydride ring, and the N-δ-trityl side-chain protection helps preserve the glutamine amide functionality against undesired reactions during chain growth. The Fmoc handle supports orthogonal cycle control by allowing removal of the α-protecting group to regenerate the nucleophilic amine for subsequent couplings. Resulting peptides can be assembled into glutamine-containing sequences for structure-activity relationship studies, peptide library generation, and method development in peptide coupling chemistry, with predictable stereochemical retention from the L-configured chiral center.
2. Protected Amino Acid Coupling
N-α-Fmoc-N-δ-trityl-L-glutamine N-carboxyanhydride serves as a protected amino acid coupling reagent in workflows that require defined protection-state management across multiple functional groups. The NCA activation state provides a high-energy electrophile for nucleophilic ring opening by an amine, while the trityl-protected side-chain amide reduces side reactions such as premature deprotection or side-chain participation during coupling. The orthogonal protection pattern, combining Fmoc on the α-nitrogen with trityl on the δ-amide nitrogen, supports iterative deprotection and re-coupling sequences that maintain the integrity of glutamine side-chain chemistry. Downstream peptide products can be generated with controlled deprotection windows, enabling access to glutamine-bearing intermediates used in synthetic organic chemistry and peptide science.
3. Peptidomimetic And SAR Studies
N-α-Fmoc-N-δ-trityl-L-glutamine N-carboxyanhydride is used in peptidomimetic and SAR-oriented synthesis where glutamine residues often function as hydrogen-bonding and polarity elements. The protected glutamine side-chain amide, retained during assembly via N-δ-trityl protection, allows incorporation of a defined polar motif into peptide scaffolds without uncontrolled side reactions. The NCA format supports consistent peptide bond formation at the glutamine position, supporting the generation of analog series where stereochemistry and functional group placement are held constant while other positions vary. Resulting glutamine-containing peptides and peptide mimics can be used as chemical probes and SAR building blocks, linking amino acid derivatization strategy to downstream molecular design.
4. Biochemical Research Intermediate
N-α-Fmoc-N-δ-trityl-L-glutamine N-carboxyanhydride is utilized as a biochemical research intermediate for producing glutamine-containing peptide reagents used in chemical biology tool development. The compound's controlled protection scheme preserves the side-chain amide functionality through synthesis, enabling later conversion to deprotected glutamine-containing peptides for binding studies, assay development, or substrate/inhibitor analog preparation. Fmoc-based orthogonality supports stepwise generation of peptides with defined termini, which can be important when peptides are further functionalized for labeling or immobilization. The resulting intermediates integrate seamlessly into applied amino acid chemistry pipelines that require reproducible functional group presentation and stereochemically defined peptide backbones.
5. Process Chemistry Intermediate
N-α-Fmoc-N-δ-trityl-L-glutamine N-carboxyanhydride can be incorporated into process chemistry intermediate strategies for manufacturing peptide building blocks and protected glutamine-containing fragments. The NCA activation mode provides a mechanistically clear route to amide bond formation from amine nucleophiles, which can be translated into scalable peptide coupling operations under controlled conditions. The orthogonal Fmoc and trityl protection pattern supports robust intermediate handling, where side-chain protection can be maintained during chain extension and removed at a later stage to yield the intended glutamine functionality. The compound's defined chiral glutamine structure and protection-state design make it suitable for producing reproducible peptide intermediates for fine chemical synthesis and specialty chemical production, including peptide fragment manufacturing used in larger synthetic campaigns.
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