N-Fmoc-N-methyl-(S)-2-allylglycine introduces N-methylation and an allyl substituent that reduce backbone flexibility and enable bioorthogonal derivatization. Researchers employ it to design sterically constrained peptides and reactive handles. The residue influences helix formation and hydrophobic interactions. Its protection ensures compatibility with multistep synthesis.
CAT No: R2174
CAS No:2606012-88-6
Synonyms/Alias:N-Fmoc-N-methyl-(S)-2-allylglycine;2606012-88-6;(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)(methyl)amino)pent-4-enoic acid;(2S)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl](methyl)amino}pent-4-enoic acid;SCHEMBL24633907;G87274;(2S)-2-[9H-fluoren-9-ylmethoxycarbonyl(methyl)amino]pent-4-enoic acid;
N-Fmoc-N-methyl-(S)-2-allylglycine, also known as Fmoc-N-Me-(S)-2-allylglycine, is a specialized amino acid derivative widely recognized for its unique structural and functional attributes. As a protected, non-proteinogenic building block, it features an Fmoc protecting group on the amino terminus, an N-methyl modification, and an allyl-functionalized side chain. These modifications confer enhanced steric and electronic properties, making the compound highly valuable for advanced peptide synthesis and the construction of complex molecular architectures. Owing to its chiral purity and compatibility with solid-phase peptide synthesis (SPPS), N-Fmoc-N-methyl-(S)-2-allylglycine is frequently selected by researchers aiming to introduce site-specific modifications or to design peptides with improved bioactive profiles.
Peptide Synthesis: In the realm of peptide chemistry, Fmoc-N-Me-(S)-2-allylglycine serves as a versatile building block for the generation of structurally diverse peptides. Its N-methylation imparts conformational rigidity, which can enhance peptide stability against enzymatic degradation and modulate secondary structure formation. The allyl side chain offers a reactive handle for subsequent functionalization, enabling the introduction of orthogonal modifications after peptide assembly. Researchers utilize this compound to design peptides with enhanced pharmacokinetic properties, investigate structure-activity relationships, and create libraries for high-throughput screening.
Peptidomimetic Design: The unique combination of N-methylation and allyl substitution in this amino acid analog is particularly advantageous for the synthesis of peptidomimetics. By incorporating it into peptide backbones, scientists can mimic natural protein motifs while introducing non-natural elements that disrupt protease recognition or alter molecular recognition profiles. The presence of the allyl group allows for post-synthetic derivatization through reactions such as cross-metathesis or allyl deprotection, further expanding the chemical diversity accessible for peptidomimetic research.
Chemical Ligation Strategies: N-Fmoc-N-methyl-(S)-2-allylglycine is frequently employed in advanced chemical ligation techniques, including native chemical ligation and segment coupling strategies. Its allyl group can serve as a temporary protecting group for carboxyl or amino functionalities, enabling selective deprotection and sequential coupling steps in the assembly of large or cyclic peptides. This utility is particularly valuable in the synthesis of complex peptide frameworks and cyclic peptide libraries where orthogonal protection strategies are essential for precise molecular construction.
Bioorthogonal Labeling: The allyl functionality present in the molecule makes it an attractive candidate for bioorthogonal chemistry applications. Researchers exploit the reactivity of the allyl group to introduce fluorescent probes, affinity tags, or other reporter molecules onto peptides post-synthesis. This enables the tracking, visualization, or isolation of peptides in biochemical assays, facilitating studies on peptide localization, interaction, or dynamics within various biological environments.
Material Science and Functional Polymers: Beyond traditional peptide research, Fmoc-N-Me-(S)-2-allylglycine finds application in the development of functionalized polymers and materials. Its allyl side chain can participate in polymerization reactions, allowing the integration of amino acid-derived motifs into polymer backbones or side chains. These modified materials can exhibit unique mechanical, chemical, or biological properties, making them suitable for use in biomaterials research, surface modification, and the fabrication of responsive or bioactive materials.
In summary, N-Fmoc-N-methyl-(S)-2-allylglycine is a highly adaptable compound that supports a wide spectrum of scientific applications, from the synthesis of conformationally constrained peptides and peptidomimetics to its use in advanced ligation techniques and bioorthogonal labeling. Its chemical versatility also paves the way for innovative uses in material science, where it enables the design of novel functional polymers. The continued exploration of this amino acid derivative is expected to drive progress in peptide chemistry, molecular engineering, and the development of next-generation biomaterials.
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