Results 51 to 60 of about 4,400 (190)

Chemoselective Metabolomics via a Modular Reactivity‐Encoding Platform

open access: yesAdvanced Science, EarlyView.
Conventional LC–MS underrepresents numerous metabolites due to heterogeneous ionization efficiencies and matrix interference. Here, we introduce a modular reactivity‐encoding platform (MREP) comprising four alkyne‐tagged probes that selectively derivatize key functional groups, followed by unified click‐chemistry capture to eliminate matrix components ...
Xin Tao   +10 more
wiley   +1 more source

Design, synthesis, in silico and in vitro antimicrobial screenings of novel 1,2,4-triazoles carrying 1,2,3-triazole scaffold with lipophilic side chain tether

open access: yesChemistry Central Journal, 2017
Background 1,2,4-Triazoles and 1,2,3-triazoles have gained significant importance in medicinal chemistry. Results This study describes a green, efficient and quick solvent free click synthesis of new 1,2,3-triazole-4,5-diesters carrying a lipophilic side
Mohamed Reda Aouad   +6 more
doaj   +1 more source

Synthesis of Ribosylated 1,2,3‐Triazole Derivatives.

open access: yesChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Zhong‐Xu Ren   +3 more
openaire   +1 more source

Von In‐Silico bis In‐Cerebro – Entwicklung des Orexinrezeptor Antagonisten „Photorexant“ zur Photomodulation In Vitro und im Gehirn der Maus

open access: yesAngewandte Chemie, EarlyView.
Durch einen strukturbasierten Designansatz wurden photoschaltbare Derivate des von der FDA zugelassenen Arzneistoffes Suvorexant entwickelt, gedockt, synthetisiert und pharmakologisch an den Orexin‐1‐ und 2‐Rezeptoren (OX1R und OX2R) charakterisiert.
Marcus Angermann   +10 more
wiley   +1 more source

1,2,3-Triazole-Based Hybrids as EGFR Inhibitors: An overview [PDF]

open access: yesRecords of Pharmaceutical & Biomedical Sciences
Cancer continues to be a leading cause of mortality worldwide, presenting a major global public health concern. Despite advances in treatment, the discovery and development of effective anticancer drugs remain significant challenges for medicinal ...
Asmaa Yassen   +4 more
doaj   +1 more source

Design and Synthesis of New 5-aryl-4-Arylethynyl-1H-1,2,3-triazoles with Valuable Photophysical and Biological Properties

open access: yesMolecules, 2021
Cu-catalyzed 1,3-dipolar cycloaddition of methyl 2-azidoacetate to iodobuta-1,3-diynes and subsequent Suzuki-Miyaura cross-coupling were used to synthesize new triazoles derivatives: 5-aryl-4-arylethynyl-1H-1,2,3-triazoles. Investigation of their optical
Mariia M. Efremova   +4 more
doaj   +1 more source

The roles of side chains in Y6‐series non‐fullerene acceptors for high‐performance organic solar cells

open access: yesBulletin of the Korean Chemical Society, EarlyView.
The development of organic solar cells (OSCs) has been driven by structural modifications of Y6‐series non‐fullerene acceptors. In particular, side‐chain engineering regulates solubility, molecular packing, and energy levels, enabling efficiencies to increase from 15.7% to over 20%.
Peddaboodi Gopikrishna   +3 more
wiley   +1 more source

Strategies Towards the Synthesis of N2-Substituted 1,2,3-Triazoles

open access: yesAnais da Academia Brasileira de Ciências, 2019
The chemistry of 1,2,3-triazoles gained much attention since the discovery of the copper catalyzed Alkyne-azide cycloaddition (CuAAC) reaction which delivers exclusively the 1,4-regioisomer in high yields.
RODRIGO OCTÁVIO M.A. DE SOUZA   +1 more
doaj   +1 more source

Regioselective synthesis, characterization and antimicrobial evaluation of amide-ether linked 1,4-disubstituted 1,2,3-triazoles [PDF]

open access: yesJournal of the Serbian Chemical Society, 2017
Regioselective synthesis of some amide–ether-linked 1,4-disubstituted 1,2,3-triazoles was realized via the copper(I)-catalyzed click reaction of 1-(prop-2-ynyloxy)naphthalene, 2-(prop-2-ynyloxy)naphthalene and 1,4-bis-(prop-2-ynyloxy)benzene with 2-azido-
Kaushik Chander Prakash   +5 more
doaj   +1 more source

Mild C─F Activation of Azido(per)Fluoroalkanes

open access: yesChemistry – A European Journal, EarlyView.
Mild and selective activation of C(sp3)–F bonds in azido(per)fluoroalkanes using thiolates was developed, leading to novel functionalized azides. The reaction is initiated by nucleophilic attack of the sulfur atom to the terminal nitrogen of the azido group, followed by fluoride ion elimination.
Olena Shaitanova   +7 more
wiley   +1 more source

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