Results 1 to 10 of about 5,266 (185)

Synthesis and cytotoxic evaluation of some quinazolinone- 5-(4-chlorophenyl) 1, 3, 4-oxadiazole conjugates [PDF]

open access: yesResearch in Pharmaceutical Sciences, 2019
1, 3, 4- Oxadiazoles and quinazolinones are privileged structures with extensive biological activities. On account of reported anticancer activity of them, in this study, a multi-step reaction procedure has been developed for the synthesis of some ...
Farshid Hassanzadeh   +4 more
doaj   +2 more sources

Synthesis, cytotoxic evaluation, and molecular docking studies of some new 1, 3, 4-oxadiazole-based compounds [PDF]

open access: yesResearch in Pharmaceutical Sciences, 2020
Background and purpose: Oxadiazole-derived compounds have been shown to have a wide range of pharmacological activities. 2, 5-Disubstituted 1, 3, 4-oxadiazole derivatives have occupied a specific place in the design of anti-proliferative agents.
Farshid Hassanzadeh   +4 more
doaj   +2 more sources

Synthesis and in vitro antibacterial activity of new oxoethylthio-1,3,4-oxadiazole derivatives

open access: yesJournal of Saudi Chemical Society, 2014
In the present investigation, a series of 2(4-pyridyl)-5[(aryl/heteroarylamino)-1-oxoethyl]thio-1,3,4-oxadiazole were synthesized using isonicotinohydrazide and substituted aryl/heteroaryl amines using pyridine as solvent.
Jignesh P Raval
exaly   +3 more sources

Synthesis and Antimicrobial Screening of Some New Thiazole Substituted 1,3,4-Oxadiazole Derivatives

open access: yesChemistry Proceedings, 2021
In the present work, the synthesis and antimicrobial activity of new thiazole substituted 1,3,4-oxadiazole derivatives was achieved. The reaction of different thioamides with ethyl 4-chloro-3-oxobutanoate (4-chloro ethyl acetoacetate) provided ethyl 2-(2-
Siddhant V. Kokate, Sachin V. Patil
doaj   +1 more source

Syntheses, crystal structures and Hirshfeld surface analysis of 2-(benzylsulfanyl)-5-[4-(dimethylamino)phenyl]-1,3,4-oxadiazole and 2-[(2-chloro-6-fluorobenzyl)sulfanyl]-5-[4-(dimethylamino)phenyl]-1,3,4-oxadiazole

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2023
The title compounds were synthesized by alkylation of 5-[(4-dimethylamino)phenyl]-1,3,4-oxadiazole-2-thiol with benzyl chloride or 2-chloro-6-fluorobenzyl chloride in the presence of potassium carbonate.
Rasul Ya. Okmanov   +4 more
doaj   +1 more source

4,4′-Difluoro-[3,3′-bi(1,2,5-oxadiazole)] 2,2′-Dioxide

open access: yesMolbank, 2023
1,2,5-Oxadiazole oxides (furoxans) are well known nitric oxide donors; among them, 4-fluorofuroxans have recently been found to be important photoinduced nitric oxide donors. In this research, it was shown that the reaction of 4,4′-dinitro-[3,3′-bi(1,2,5-
Natalia V. Obruchnikova, Oleg A. Rakitin
doaj   +1 more source

N-Phenyl-N-{4-[5-(4-pyridyl)-1,3,4-oxadiazol-2-yl]phenyl}aniline

open access: yesActa Crystallographica Section E, 2008
The title compound, C25H18N4O, is a non-planar bipolar ligand containing triphenylamine and 1,3,4-oxadiazole units. In the molecule, the benzene ring, the 1,3,4-oxadiazole ring, and the pyridine ring are twisted slightly with respect to each other ...
Li-Ping Han, Bin Li, Jie Liu
doaj   +1 more source

3-(4-Amino-1,2,5-oxadiazol-3-yl)-4-(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,5-oxadiazole

open access: yesMolbank, 2014
The title compound 3-(4-amino-1,2,5-oxadiazol-3-yl)-4-(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,5-oxadiazole (ANFF-1) was synthesized by: (1) by reaction of 3,4-bis(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,5-oxadiazole (BNFF-1) with gaseous ammonia in toluene and (2)
Philip Pagoria   +5 more
doaj   +1 more source

Efficient Synthesis of Novel 1,3,4-Oxadiazoles Bearing a 4-N,N-Dimethylaminoquinazoline Scaffold via Palladium-Catalyzed Suzuki Cross-Coupling Reactions

open access: yesMolecules, 2020
Two series of novel (symmetrical and unsymmetrical) quinazolinylphenyl-1,3,4-oxadiazole derivatives were synthesized using palladium-catalyzed Suzuki cross-coupling reactions. The presented synthetic methodology is based on the use of bromine-substituted
Barbara Wołek   +3 more
doaj   +1 more source

SYNTHESIS,ANTIBACTERIAL ACTIVITY OF 2-AMINO 5-PHENYL -1,3,4- OXADIAZOLE DERIVATIVES

open access: yesمجلة بغداد للعلوم, 2008
In the present investigation, five derivatives were synthesized as potential  antimicrobial   agents , The compounds  are : 2-amino 5-phenyl - 1,3,4-  oxadiazole  dithi-ocarbomate, 2-amino 5-( 4-amino- N,N-dimethyl phenyl)-  1,3,4- oxadiazole,    2 ...
Hussain jassem Mohammed
doaj   +1 more source

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