Results 61 to 70 of about 5,960 (212)

Recent Advances in the Chemistry of 1,2,4-Oxadiazoles

, 2015
1,2,4-Oxadiazoles experienced an almost 80-year long period of scientific lethargy before they tickled the curiosity of chemists. The study of chemical and photochemical reactivity of 1,2,4-oxadiazoles opened the way to a series of applications in ...
Ivana Pibiri, PALUMBO PICCIONELLO, Antonio, Antonio Palumbo Piccionello, Silvestre Buscemi, PIBIRI, Ivana, Andrea Pace, BUSCEMI, Silvestre, PACE, Andrea   +7 more
core   +1 more source

1,3‐Dipolar Cycloaddition of Nitroalkanes as a Tool of DOS/LOS‐Like Strategy for the Synthesis of Isoxazoles and Isoxazolines

ChemistryEurope, Volume 4, Issue 9, September 2026.
A broadly applicable synthetic platform based on a DOS/LOS‐like strategy is implemented for the case of sp3‐enriched isoxazole/isoxazoline building blocks. The method is based on a [3+2] cycloaddition of nitroalkanes and various alkenes or alkynes. The utility of the proposed approach is illustrated by the discovery of JAK2‐selective inhibitors.
Bohdan A. Chalyk, Kostiantyn O. Halos, Anastasiia Grynyova, Bohdan S. Sosunovych, Bohdan V. Vashchenko, Oleksandr Zginnyk, Anna Beshtynarska, Nataliia Shliakhtova, Petro Borysko, Angelina V. Biitseva, Konstantin S. Gavrilenko, Dmytro M. Volochnyuk, Oleksandr O. Grygorenko   +12 more
wiley   +1 more source

Electrocyclic Ring‐Opening of 1,2,4‐Oxadiazole[4,5‐a]piridinium Chloride: a New Route to 1,2,4‐Oxadiazole Dienamino Compounds

ChemistryOpen, 2019
1,2,4‐Oxadiazole[4,5‐a]piridinium chloride adds nucleophiles to undergo electrocyclic ring opening affording 1,2,4‐oxadiazole dienamino derivatives. These pyridinium salts represent a special class of Zincke salts that are prone to rearrange when treated
Dr. Stefano Carella, Dr. Misal Giuseppe Memeo, Prof. Paolo Quadrelli   +2 more
doaj   +1 more source

Sulfonamide‐Based 2‐Amino‐1,3,4‐Oxadiazole Derivatives as Dual Cholinesterase and Carbonic Anhydrase Inhibitors: Design, Synthesis, Kinetic Characterization, Molecular Modeling, and ADMET Evaluation

Drug Development Research, Volume 87, Issue 6, September 2026.
ABSTRACT In this study, 12 novel sulfonamide derivatives incorporating 2‐amino‐1,3,4‐oxadiazole and 1,3‐benzazol‐2(3H)‐one scaffolds were synthesized and structurally characterized using 1H NMR, 13C NMR, and LC–MS analyses. Their inhibitory activities were evaluated against acetylcholinesterase (AChE), butyrylcholinesterase (BChE), carbonic anhydrase I
Gülnur Arslan Karahan, Başak Gökçe, Muhammed Tilahun Muhammed, Emre Kadir Ayan, Azime Berna Özçelik   +4 more
wiley   +1 more source

A Useful Synthesis of 2-Acylamino-1,3,4-oxadiazoles from Acylthiosemicarbazides Using Potassium Iodate and the Discovery of New Antibacterial Compounds

Molecules, 2019
A useful method for the synthesis of 2-acylamino-1,3,4-oxadiazoles was developed. By using potassium iodate as an oxidant in water at 60 °C, a wide range of 2-acylamino-1,3,4-oxadiazoles were afforded in moderate to excellent yields within two hours.
Tianlei Li, Gang Wen, Jishun Li, Wenxuan Zhang, Song Wu   +4 more
doaj   +1 more source

Quinoline and Phthalimide Substituted Silicon Phthalocyanines as Multi‐Target Inhibitors of Cholinesterases and Carbonic Anhydrases

Journal of Biochemical and Molecular Toxicology, Volume 40, Issue 9, September 2026.
Two novel axially substituted silicon phthalocyanines were synthesized and characterized. Compound 2a exhibited significantly enhanced inhibition of AChE, BChE, hCA I and hCA II, supported by molecular docking and SAR analysis, highlighting its potential as a multifunctional enzyme inhibitor with promising biological activity.
Seda Ünlü, Zeynep Köksal, Kevser Kübra Kırboğa, Fikriye Tuncel Elmalı   +3 more
wiley   +1 more source

Review Article: The Impact of the Gut Microbiome on Ulcerative Colitis Pharmacotherapy

Alimentary Pharmacology &Therapeutics, Volume 64, Issue 6, Page 729-747, September 2026.
The gut microbiome modulates ulcerative colitis pharmacotherapy through microbial drug metabolism, immune regulation and altered drug bioavailability. Microbial composition influences response to aminosalicylates, corticosteroids, immunomodulators, biologics and small molecules, while microbiome‐targeted therapies show emerging promise.
Kate Collins, Srinivas Kamath, Rachel H. Davis, Samuel P. Costello, Robert V. Bryant, Alice S. Day, Paul Joyce   +6 more
wiley   +1 more source

3-(3-Azabicyclo[2, 2, 1]heptan-2-yl)-1,2,4-oxadiazoles as Novel Potent DPP-4 Inhibitors to Treat T2DM

Pharmaceuticals
Background: Type 2 diabetes mellitus (T2DM) is a prevalent metabolic disease with global implications, necessitating effective management strategies.
Tatiana V. Zinevich, Ivan O. Maslov, Olga G. Kirichenko, Sergey V. Shorshnev, Maxim A. Gureev, Fedor M. Dolgushin, Yuri B. Porozov, Vladimir M. Trukhan   +7 more
doaj   +1 more source

Continuous-flow synthesis of highly functionalized imidazo-oxadiazoles facilitated by microfluidic extraction

Beilstein Journal of Organic Chemistry, 2017
A versatile continuous-flow synthesis of highly functionalized 1,2,4-oxadiazoles starting from carboxylic acids is reported. This process was applied to the multistep synthesis of imidazo[1,2-a]pyridin-2-yl-1,2,4-oxadiazoles, using a three reactor ...
Ananda Herath, Nicholas D. P. Cosford
doaj   +1 more source

Ligand‑Based Virtual Screening Discovery of Thienopyrimidinone Derivatives as Allosteric nSMase2 Modulators and Antivirals Against West Nile Virus

ChemMedChem, Volume 21, Issue 16, 27 August 2026.
Ligand‐based virtual screening of over five million compounds identifies a thienopyrimidinone hit as a novel allosteric nSMase2 modulator. Structure‐guided optimisation improves inhibitory potency and delivers derivatives with antiviral activity against West Nile virus, expanding the chemical space of nSMase2 inhibitors and supporting host‐directed ...
Hadrián Álvarez‐Fernández, Patricia Mingo‐Casas, Ana‐Belén Blázquez, Flavia Caridi, Miguel A. Martín‐Acebes, María‐Jesús Pérez‐Pérez, Eva‐María Priego   +6 more
wiley   +1 more source