Design, Synthesis, and Application of a Trifluoromethylated Phenylalanine Analogue as a Label to Study Peptides by Solid-State19F NMR Spectroscopy

2013 ◽  
Vol 52 (25) ◽  
pp. 6504-6507 ◽  
Author(s):  
Anton N. Tkachenko ◽  
Dmytro S. Radchenko ◽  
Pavel K. Mykhailiuk ◽  
Sergii Afonin ◽  
Anne S. Ulrich ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Design Synthesis

Design, Synthesis, and Application of an Optimized Monofluorinated Aliphatic Label for Peptide Studies by Solid-State 19 F NMR Spectroscopy

2016 ◽  
Vol 55 (47) ◽  
pp. 14788-14792 ◽  
Author(s):  
Serhii O. Kokhan ◽  
Andriy V. Tymtsunik ◽  
Stephan L. Grage ◽  
Sergii Afonin ◽  
Oleg Babii ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Design Synthesis ◽  
19 F Nmr

scholarly journals Design, synthesis and spectroscopic properties of crown ether-capped dibenzotetraaza[14]annulenes

2019 ◽  
Vol 15 ◽  
pp. 617-622 ◽  
Author(s):  
Krzysztof Miroslaw Zwoliński ◽  
Julita Eilmes
Keyword(s):  
Nmr Spectroscopy ◽  
Crown Ether ◽  
Elemental Analysis ◽  
Binding Sites ◽  
Spectroscopic Properties ◽  
Design Synthesis ◽  
Face To Face ◽  
C Nmr

The first crown ether-capped dibenzotetraaza[14]annulenes (DBTAAs), featuring two macrocyclic binding sites fixed in a face-to-face orientation, were synthesized in satisfactory 26–28% isolated yields. Direct N-alkylation of 1,4,10-trioxa-7,13-diazacyclopentadecane by symmetric DBTAA derivatives bearing bromoalkoxy pendants proceed smoothly at a reasonable level of dilution (1.25 mM). The structures were fully characterized by HR-ESIMS, FTIR-ATR, 1H and 13C NMR spectroscopy and elemental analysis.

scholarly journals Design, Synthesis, and Characterization of Novel Thiol-Derivatized Ibuprofen Monolayer Protected Gold Clusters

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Kuan-Han Lee ◽  
Yu-Sheng Lin ◽  
Po-Jui Huang
Keyword(s):  
Nmr Spectroscopy ◽  
Gold Clusters ◽  
Hydroxyl Group ◽  
Synthesis And Characterization ◽  
Nmr Spectrum ◽  
Design Synthesis ◽  
H Nmr

A series of new thiol-derivatized ibuprofen monolayer protected gold clusters have been prepared by amidation of ibuprofen with alkyl alcohol or aminophenol affording the carboxamides, N-hydroxyalkyl amide2, and N-hydroxyphenyl amide6, which were then tosylated withp-toluenesulfonyl chloride at hydroxyl group to give3and7. Reactions of3and7with NaSH afforded the mercapto derivatives4and8. Conducting Brust’s reaction with a 3 : 1 mole ratio of thiolate ibuprofen/AuCl4-yielded polydisperse thiol-derivatized ibuprofen-MPCs5and9. All compounds have been identified by NMR, MS, UV, and IR spectroscopies. Compounds4and8and the MPCs5and9have been investigated by using the method of1H NMR spectroscopy. The broadening of the signals from 0.8 to 2.0 ppm in1H NMR spectrum of MPCs5and9confirmed the success of the conjugation of thiol-containing derivatives with nanogold cluster.

scholarly journals Design, Synthesis, Characterization, Biological Activity and ADME Study of New 5-arylidene-4-Thiazolidinones Derivatives Having

2019 ◽  
pp. 77-88
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Nmr Spectroscopy ◽  
Magnetic Resonance ◽  
Chloroacetic Acid ◽  
13C Nmr Spectroscopy ◽  
Proton Nuclear Magnetic Resonance ◽  
Design Synthesis ◽  
Antibacterial And Antifungal ◽  
Adme Study ◽  
Nuclear Magnetic

New series of Nabumetone containing 5-arylidene-4-thiazolidinones pharmacophore as in compounds 3(a-e) were designed and synthesized by using nabumetone and hydrazinethiocarboamide to synthesize compound (1) (Schiff base), next step compound (1) will react with chloroacetic acid and anhydrous sodium acetate in order to synthesize compound (2) containing 4-thiazolidinone ring this compound will react with 4-benzaldehyde derivatives in the presence of basic media such as piperidine to form compounds 3(a-e). The structures of new intermediate and final synthesized compounds were detected by determination of physical properties (melting points). The structure of synthesized compounds has been confirmed by FT-IR spectroscopy, proton nuclear magnetic resonance (1H-NMR) spectroscopy and carbon 13 nuclear magnetic resonance (13C-NMR) spectroscopy the final synthesized compounds were also screened for their antibacterial and antifungal activity.

Design, Synthesis, and Application of a Trifluoromethylated Phenylalanine Analogue as a Label to Study Peptides by Solid-State19F NMR Spectroscopy

2013 ◽  
Vol 125 (25) ◽  
pp. 6632-6635 ◽  
Author(s):  
Anton N. Tkachenko ◽  
Dmytro S. Radchenko ◽  
Pavel K. Mykhailiuk ◽  
Sergii Afonin ◽  
Anne S. Ulrich ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Design Synthesis

Design, synthesis and crystallographic study of novel indole-based cyano derivatives as key building blocks for heteropolycyclic compounds of major complexity

2017 ◽  
Vol 73 (12) ◽  
pp. 1040-1049 ◽  
Author(s):  
Andrés C. García ◽  
Rodrigo Abonía ◽  
Luz M. Jaramillo-Gómez ◽  
Justo Cobo ◽  
Christopher Glidewell
Keyword(s):  
Mass Spectrometry ◽  
Nmr Spectroscopy ◽  
Ambient Temperature ◽  
Elemental Analysis ◽  
Building Blocks ◽  
Reaction Sequence ◽  
Design Synthesis ◽  
Crystallographic Study ◽  
Triclinic Form ◽  
C Nmr

A four-stage reaction sequence has been designed and developed for the synthesis of highly functionalized enolate esters as key building blocks for the synthesis of novel heteropolycyclic compounds of potential pharmaceutical value. The sequence starts with simple commercially available indoles and proceeds via 3-(indol-3-yl)-3-oxopropanenitriles, which react with 2-bromobenzaldehyde to form the corresponding chalcones; these are readily reduced to dihydrochalcones, which are in turn acylated to form the enolate esters. The compounds in this sequence have been characterized by IR and 1H and 13C NMR spectroscopy, by mass spectrometry and by elemental analysis. The molecular and supramolecular structures are reported for representative examples, namely (E)-3-(2-bromophenyl)-2-(1-methyl-1H-indole-3-carbonyl)acrylonitrile, C19H13BrN2O, (Ib), (2RS)-2-(2-bromobenzyl)-3-(1-methyl-1H-indol-3-yl)-3-oxopropanenitrile, C19H15BrN2O, (IIb), and (2RS)-3-(1-benzyl-1H-indol-3-yl)-2-(2-bromobenzyl)-3-oxopropanenitrile, C25H19BrN2O, (IIc), the latter two of which crystallize with Z′ = 2, and (E)-1-(1-acetyl-1H-indol-3-yl)-3-(2-bromophenyl)-2-cyanoprop-1-en-1-yl acetate, C22H17BrN2O, (III), and (E)-1-(1-benzyl-1H-indol-3-yl)-3-(2-bromophenyl)-2-cyanoprop-1-en-1-yl benzoate, C32H23BrN2O, (IV). The structure of the related chalcone (E)-2-benzoyl-3-(2-bromophenyl)prop-2-enenitrile, (V), has been redetermined at 100 K, where it is monoclinic, as opposed to the triclinic form reported at ambient temperature.

scholarly journals Design, Synthesis, andIn VitroAntioxidant Activity of 1,3,5-Trisubstituted-2-pyrazolines Derivatives

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
P. C. Jagadish ◽  
Neeraj Soni ◽  
Amita Verma
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Nmr Spectroscopy ◽  
Microwave Irradiation ◽  
Mass Spectroscopy ◽  
Mannich Base ◽  
Molecular Properties ◽  
Microwave Irradiation Method ◽  
Design Synthesis ◽  
Ir And Nmr Spectroscopy

Mannich base of pyrazolines 3(a–e) under both conventional and microwave irradiation was synthesized. All the synthesised compounds were purified by recrystallisation, characterized on the basis of UV, IR, and NMR spectroscopy, and further supported by mass spectroscopy. The result obtained confirms superiority of microwave irradiation method over classical heating one. The molecular properties and Lipinski rule of five for compounds 3(a–e) were determined by Molinspiration. The synthesized compounds were subsequently evaluated for the antioxidant activity. All the compounds were found in compliance with Lipinski “Rule of Five”, and compound 3e havingp-hydroxyl substitution showed best antioxidant activity as compared to ascorbic acid and rutin.

scholarly journals Compact, hydrophilic, lanthanide-binding tags for paramagnetic NMR spectroscopy

2015 ◽  
Vol 6 (4) ◽  
pp. 2614-2624 ◽  
Author(s):  
M. D. Lee ◽  
C.-T. Loh ◽  
J. Shin ◽  
S. Chhabra ◽  
M. L. Dennis ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
Paramagnetic Nmr ◽  
Design Synthesis ◽  
Lanthanide Binding Tags

The design, synthesis and evaluation of four novel lanthanide-binding tags for paramagnetic NMR spectroscopy are reported.

Design, Synthesis, and Application of an Optimized Monofluorinated Aliphatic Label for Peptide Studies by Solid-State 19 F NMR Spectroscopy

2016 ◽  
Vol 128 (47) ◽  
pp. 15008-15012 ◽  
Author(s):  
Serhii O. Kokhan ◽  
Andriy V. Tymtsunik ◽  
Stephan L. Grage ◽  
Sergii Afonin ◽  
Oleg Babii ◽  
...  
Keyword(s):  
Solid State ◽  
Nmr Spectroscopy ◽  
Design Synthesis ◽  
19 F Nmr
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