Results 21 to 30 of about 6,176 (169)
Molecules, 2022 The bioisosteres of 1,3,4-oxadiazoles and 1,3,4-thiadiazoles are well-known pharmacophores for many medicinally important drugs. Throughout the past 10 years, 1,3,4-oxa-/thiadiazole nuclei have been very attractive to researchers for drug design ...
Rana M. El-Masry +3 more
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Expanding Synthesizable Space of Disubstituted 1,2,4-Oxadiazoles
, 2017 One-pot synthesis of 3,5-disubstituted 1,2,4-oxadiazoles from carboxylic acids and nitriles was optimized to parallel chemistry. The method was validated on a 141 member library; the desired products were recovered with a high success rate and in ...
Andrey Tolmachev (1514266) +10 more
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Cu(OH)x-clay catalyst promoted synthesis of 4,5-dihydro-1,2,4-oxadiazole at room temperature
Green Processing and Synthesis, 2018 An easy and efficient scheme is described and designed for the preparation of 4,5-dihydro-1,2,4-oxadiazole using recyclable Cu(OH)x-clay heterogeneous catalyst at room temperature.
Dar Bashir Ahmad +3 more
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2-(4-Bromophenoxy)propanohydrazide
Acta Crystallographica Section E, 2009 The title compound, C9H11BrN2O2, is an important intermediate for the synthesis of heterocyclic compounds such as azoles, 2,5-disubstituted-1,3,4-oxadiazoles and 5-substituted 2-mercapto-1,3,4-oxadiazoles. The bromophenoxy group subtends a dihedral angle
Shahid Hameed +3 more
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Molecules, 2021 A series of N-pyridyl ureas bearing 1,2,4- (1a, 2a, and 3a) and 1,3,4-oxadiazole moiety (1b, 2b, 3b) was prepared and characterized by HRMS, 1H and 13C NMR spectroscopy, as well as X-ray diffraction.
Sergey V. Baykov +6 more
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Editorial for Special Issue “Bioactive Oxadiazoles”
, 2021 Oxadiazoles are electron-poor, five-membered aromatic heterocycles containing one oxygen and two nitrogen atoms [...
Antonio Palumbo Piccionello
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Zagazig Journal of Pharmaceutical Sciences, 1993 Synthesis of 2- (6-bromo -2- imidazo [4,5-b] pyridinyl) ethyl -5-( substituted) thío 1,3,4 Oxadiazole derivatives is described. The preparation of 1,3,4 - Oxadiazoles was achieved by cyclization of the corresponding acid hydrazide.
Mohamed Ebeid +4 more
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Quantum chemical research of the molecular structure of 3,4-dicyanofuroxan
Тонкие химические технологии, 2023 Objectives. The study set out to determine the equilibrium parameters of the 3,4-dicyanofuroxan molecule by means of molecule geometry optimization by quantum chemistry methods, verify the adequacy of the methods used, and compare the obtained results ...
I. N. Kolesnikova +3 more
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Development of Benzothiophene–Bearing Bis–oxadiazole Derivatives for Potential Anticancer Targets: Evaluation of DFT, ADME–Tox, and In Silico Docking [PDF]
Chem BiodiversInnovative synthesis of a novel benzothiophene–based bis–oxadiazole derivatives. The structural characterization was performed using experimental and theoretical methods. Significant anticancer activity against selected cancer cell lines. Three derivatives showed good activity 7b, 7g and 7i with IC50 values 7.5 ± 1.04 and 9.5 ± 1.01 µg/mL.
Madala N, Sharma V, Vinnakota S.
europepmc +2 more sources
, 2016 The scope of intramolecular Diels−Alder and a novel tandem Diels−Alder/1,3-dipolar cycloaddition cascade of 1,3,4-oxadiazoles is disclosed. In the cases examined, the tandem cycloadditions construct three new rings with formation of four new C−C bonds ...
Dale L. Boger (1306542) +7 more
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