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Particularly for its use in bioconjugations, the copper-catalyzed (or copper-promoted) azide-alkyne cycloaddition (CuAAC) reaction or 'click chemistry', has become an essential component of the modern chemical biologist's toolbox. Click chemistry has been applied to DNA, and more recently, RNA conjugations, and the protocols presented here can be used for either. The reaction can be carried out in aqueous buffer, and uses acetonitrile as a minor co-solvent that serves as a ligand to stabilize the copper. The method also includes details on the analysis of the reaction product. © 2016 by John Wiley & Sons, Inc.
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http://dx.doi.org/10.1002/cpch.1 | DOI Listing |
Chem Biodivers
December 2024
Banaras Hindu University, Chemistry, institute of science, 221005, Varanasi, INDIA.
1,2,3-triazole-based ring connected with pyridazine, triazine, methyl pyrazole, diphenyl pyrazole, and pthalimide moieties through propylene linker have been synthesized for antidiabetic evaluation via click chemistry. The antidiabetic evaluations have been done by molecular docking studies and in- vitro tests and against the DPP-4 enzyme. The molecular docking studies have revealed that compounds 22, 23, 29, and 30 showed hydrogen bond with the DPP-4 enzyme while in vitro tests has revealed the compound 30 has (IC50 values 12.
View Article and Find Full Text PDFJ Sep Sci
December 2024
Institute of Pharmaceutical Sciences, Pharmaceutical (Bio-)Analysis, University of Tübingen, Tübingen, Germany.
The present work reports on the preparation, characterization, and evaluation of a set of novel triphenyl-modified silica-based stationary phases without and with embedded ion-exchange sites for mixed-mode liquid chromatography. The three synthesized triphenyl phases differed in additionally incorporated ion-exchange sites. In one embodiment, allyltriphenylsilane was bonded to thiol-modified silica by thiol-ene click reaction, leading to particles with no ion-exchange sites.
View Article and Find Full Text PDFChem Rec
December 2024
Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India.
The 1,2,3-triazole-based chemosensors, synthesized through Cu(I)-catalyzed azide-alkyne cycloaddition via 'click chemistry', offer a straightforward yet highly effective method for detecting metal cations and anions with remarkable accuracy, selectivity and sensitivity, making them invaluable across various fields such as chemistry, pharmacology, environmental science and biology. The selective recognition of these ions is crucial due to their significant roles in biological and physiological processes, where even slight concentration variations can have major consequences. The article reviews literature from 2017 to 2024, highlighting advancements in the synthesis of 1,2,3-triazole-based ligands and their application (along with sensing mechanism) for detection of various ions causing health and environmental hazards.
View Article and Find Full Text PDFChem Biol Drug Des
December 2024
College of Basic Medicine and Forensic Medicine, Henan University of Science and Technology, Luoyang, Henan, China.
Cervical cancer is the fourth most common cancer among women globally. Its development is closely linked to accelerated cell cycle progression and the inhibition of apoptosis in cervical cancer tissues. Gefitinib has demonstrated efficacy in inhibiting cervical cancer cells, and the 1,2,3-triazole structure is widely recognized for its role in inducing mitochondrial apoptosis in tumor cells.
View Article and Find Full Text PDFAnal Chem
December 2024
Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China.
is one of the most dangerous and contagious foodborne pathogens, posing a significant threat to public health and food safety. In this study, we developed a click chemistry-based fluorescence biosensing platform for highly sensitive detection of () by integrating the -cleavage activity of CRISPR/Cas12a with the CLICK17-mediated copper(II)-dependent azide-alkyne cycloaddition (Cu(II)AAC) click reaction. Herein, CLICK-17 can provide binding sites for Cu ions and high redox stability for one or much catalytically vital Cu within its active sites, which facilitate the click reaction.
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