Results 11 to 20 of about 132,855 (268)

7-Cyano-15-methoxy[6]helicene through a photochemical pathway and investigation of its chiroptical and photophysical properties

Comptes Rendus. Chimie, 2021
7-Cyano-15-methoxy[6]helicene was synthesized, in 54% overall yield, through a short photochemical procedure including mild conditions and inexpensive reagents.
Hafedh, Nesrine, Asghar, Basim H., Aloui, Faouzi   +2 more
doaj   +1 more source

Asymmetric synthesis of (−)-naltrexone

Chemical Science, 2019
The asymmetric synthesis of (−)-naltrexone was achieved by a Rh(i)-catalyzed C–H alkenylation and torquoselective electrocyclization cascade and late-stage C–H hydroxylation.
Sun Dongbang, Blaine Pedersen, Jonathan A. Ellman   +2 more
openaire   +3 more sources

2,4-Bis(arylethynyl)-9-chloro-5,6,7,8-tetrahydroacridines: synthesis and photophysical properties

Beilstein Journal of Organic Chemistry, 2021
Acridine derivatives have attracted considerable interest in numerous areas owing to their attractive physical and chemical properties. Herein, starting from readily available anthranilic acid, an efficient synthesis of 2,4-bis(arylethynyl)-9-chloro-5,6 ...
Najeh Tka, Mohamed Adnene Hadj Ayed, Mourad Ben Braiek, Mahjoub Jabli, Noureddine Chaaben, Kamel Alimi, Stefan Jopp, Peter Langer   +7 more
doaj   +1 more source

Continuous-Flow Synthesis of the Nucleobase Unit of Remdesivir

Engineering, 2023
In this work, the nucleobase unit of the antiviral drug remdesivir, 7-bromopyrrolo[2,1-f][1,2,4]triazin-4-amine, was synthesized through five-step continuous flow.
Yongxing Guo, Minjie Liu, Meifen Jiang, Yuan Tao, Dang Cheng, Fen-Er Chen   +5 more
doaj   +1 more source

In Vivo Nanodetoxication for Acute Uranium Exposure

Molecules, 2015
Accidental exposure to uranium is a matter of concern, as U(VI) is nephrotoxic in both human and animal models, and its toxicity is associated to chemical toxicity instead of radioactivity. We synthesized different PAMAM G4 and G5 derivatives in order to
Luis Guzmán, Esteban F. Durán-Lara, Wendy Donoso, Fabiane M. Nachtigall, Leonardo S. Santos   +4 more
doaj   +1 more source

Transition metal-catalyzed branch-selective hydroformylation of olefins in organic synthesis

Green Synthesis and Catalysis, 2021
Hydroformylation of olefins can generate linear and branched aldehydes, and the branched aldehydes are attractive precursors for the synthesis of fine chemicals and pharmaceuticals.
Yingtang Ning, Tomohiko Ohwada, Fen-Er Chen   +2 more
doaj   +1 more source

Removal of 4-Ethylphenol and 4-Ethylguaiacol with Polyaniline-Based Compounds in Wine-Like Model Solutions and Red Wine

Molecules, 2015
Volatile phenols, such as 4-ethyphenol (4-EP) and 4-ethylguaiacol (4-EG), are responsible for the “Brett character” found in wines contaminated with Brettanomyces yeast (i.e., barnyard, animal, spicy and smoky aromas).
Verónica Carrasco-Sánchez, Amalraj John, Adolfo Marican, Leonardo S. Santos, V. Felipe Laurie   +4 more
doaj   +1 more source

Erratum: Carrasco-Sánchez, V.; et al. Removal of 4-Ethylphenol and 4-Ethylguaiacol with Polyaniline-Based Compounds in Wine-Like Model Solutions and Red Wine. Molecules 2015, 20(8), 14312–14325

Molecules, 2017
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Verónica Carrasco-Sánchez, Amalraj John, Adolfo Marican, Leonardo S. Santos, V. Felipe Laurie   +4 more
doaj   +1 more source

Development of fluorine-substituted NH2-biphenyl-diarylpyrimidines as highly potent non-nucleoside reverse transcriptase inhibitors: Boosting the safety and metabolic stability

Acta Pharmaceutica Sinica B, 2023
Our recent studies for nonnucleoside reverse transcriptase inhibitors identified a highly potent compound JK-4b against WT HIV-1 (EC50 = 1.0 nmol/L), but the poor metabolic stability in human liver microsomes (t1/2 = 14.6 min) and insufficient ...
Xin Jin, Shuai Wang, Limin Zhao, Wenjuan Huang, Yinxiang Zhang, Christophe Pannecouque, Erik De Clercq, Ge Meng, Huri Piao, Fener Chen   +9 more
doaj   +1 more source

Picomolar inhibitor of reverse transcriptase featuring significantly improved metabolic stability

Acta Pharmaceutica Sinica B, 2023
Considering the undesirable metabolic stability of our recently identified NNRTI 5 (t1/2 = 96 min) in human liver microsomes, we directed our efforts to improve its metabolic stability by introducing a new favorable hydroxymethyl side chain to the C-5 ...
Ya-Li Sang, Christophe Pannecouque, Erik De Clercq, Shuai Wang, Fen-Er Chen   +4 more
doaj   +1 more source