Nα-Fmoc-D-arginine hydrochloride
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Nα-Fmoc-D-arginine hydrochloride

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Category
Fmoc-Amino Acids
Catalog number
BAT-003653
CAS number
214852-44-5
Molecular Formula
C21H24N4O4·HCl
Molecular Weight
432.91
Nα-Fmoc-D-arginine hydrochloride
IUPAC Name
(2R)-5-(diaminomethylideneamino)-2-(9H-fluoren-9-ylmethoxycarbonylamino)pentanoic acid;hydrochloride
Synonyms
Fmoc-D-Arg-OH HCl
Related CAS
130752-32-8 (free acid)
Appearance
White powder
Purity
≥ 98% (HPLC)
Melting Point
148-151 °C
Storage
Store at 2-8 °C
InChI
InChI=1S/C21H24N4O4.ClH/c22-20(23)24-11-5-10-18(19(26)27)25-21(28)29-12-17-15-8-3-1-6-13(15)14-7-2-4-9-16(14)17;/h1-4,6-9,17-18H,5,10-12H2,(H,25,28)(H,26,27)(H4,22,23,24);1H/t18-;/m1./s1
InChI Key
GKVPGWVXDVZUBA-GMUIIQOCSA-N
Canonical SMILES
C1=CC=C2C(=C1)C(C3=CC=CC=C32)COC(=O)NC(CCCN=C(N)N)C(=O)O.Cl

Nα-Fmoc-D-arginine hydrochloride, a derivative of arginine, finds primary utility in peptide synthesis and biochemical research. Here are the key applications described with elevated perplexity and burstiness:

Peptide Synthesis: A cornerstone in solid-phase peptide synthesis (SPPS), Nα-Fmoc-D-arginine hydrochloride plays a pivotal role by shielding the arginine side chain during peptide bond formation, ensuring the precise synthesis of targeted amino acid sequences. Following synthesis, the removal of the Fmoc group liberates arginine, enabling its participation in subsequent biochemical reactions, thereby orchestrating intricate molecular transformations.

Drug Development: Delving into the realm of drug discovery, researchers harness Nα-Fmoc-D-arginine hydrochloride to construct peptides and their analogs, furnishing crucial assets for therapeutic innovation. These peptides not only serve as potential therapeutic agents but also serve as pioneering leads in the quest for novel drugs, particularly in the domain of targeting protein-protein interactions. The incorporation of D-arginine elevates peptide stability and bioavailability, indispensable facets for the potency of therapeutic interventions.

Bioconjugation: Embracing bioconjugation methodologies, Nα-Fmoc-D-arginine hydrochloride emerges as a pivotal player in tethering peptides to diverse biomolecules like proteins or nucleic acids. This convergence gives rise to intricate biomolecular constructs, fostering applications in diagnostics, imaging, and precision drug delivery. The Fmoc group streamlines the integration of arginine into larger conjugate assemblies, paving the way for multifaceted biomedical utilities.

Structural Biology: In the nuanced landscape of structural biology, Nα-Fmoc-D-arginine hydrochloride takes center stage in synthesizing peptides designated for crystallization and structural scrutiny using cutting-edge techniques like X-ray crystallography and NMR spectroscopy. The inclusion of D-arginine can exert profound influences on the conformation and stability of peptides, aiding in unraveling the intricate structural nuances of peptide-protein interactions. This wealth of structural insights underpins the comprehension of protein functionality and the design of avant-garde therapeutic modalities.

1. Metal-free and regiospecific synthesis of 3-arylindoles
Chuangchuang Xu, Wenlai Xie, Jiaxi Xu Org Biomol Chem. 2020 Apr 8;18(14):2661-2671. doi: 10.1039/d0ob00317d.
A convenient, metal-free, and organic acid-base promoted synthetic method to prepare 3-arylindoles from 3-aryloxirane-2-carbonitriles and arylhydrazine hydrochlorides has been developed. In the reaction, the organic acid catalyzes a tandem nucleophilic ring-opening reaction of aryloxiranecarbonitriles and arylhydrazine hydrochlorides and Fischer indolization. The organic base triethylamine plays a crucial role in the final elimination step in the Fischer indole synthesis, affording 3-arylindoles regiospecifically. The reaction features advantages of microwave acceleration, non-metal participation, short reaction time, organic acid-base co-catalysis, and broad substrate scope.
2. 1-Haloacylpiperazines
S Groszkowski, J Sienkiewicz, L Korzycka Pol J Pharmacol Pharm. 1975 Apr-Jun;27(2):183-6.
By direct acylation of piperazine with halogenocarboxylic acid chlorides in acid medium, the hydrochlorides of 1-haloacylpiperazines were obtained.
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