Results 81 to 90 of about 18,084 (219)

Effect of 1,3,4-oxadiazoles on expression of biofilm-associated bap gene in clinical isolates of multidrug-resistant Acinetobacter baumannii

Scientific Reports
The rise of multidrug-resistant (MDR) pathogens, particularly Acinetobacter baumannii, poses a significant threat to global health due to its resistance to multiple antibiotics, biofilm-forming capacity, and associated poor clinical outcomes.
Ali Rahimbakhsh, Mahdi Seyfahmadi, Ali Souldozi, Rakhshan Hakimelahi, Mohammad Yousef Alikhani, Farshid Kafilzadeh   +5 more
doaj   +1 more source

Electrophilic Iodination of Heterocyclic Compounds. Recent Advances 2008–2025: Part II

European Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.
Electrophilic iodination using molecular iodine and iodide sources represents an efficient approach for accessing valuable iodinated organic compounds. This review highlights recent advances in the iodination of heterocyclic compounds from 2008 to 2025, emphasizing the role of heteroaryl iodides as important synthetic intermediates for biologically ...
Njomza Ajvazi, Stojan Stavber
wiley   +1 more source

Metalomesogenos : sintese e comportamento [PDF]

, 1996
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.A síntese e caracterização (por microscopia ótica, espectroscopias de infra-vermelho e ressonância magnética nuclear, e análise elementar) de ...
Meyer, Emerson
core  

From Synthesis to Synergy: Pyrazole and 1,3,4-Oxadiazole Scaffolds as Versatile Platforms for Multitarget Anticancer Drug Design [PDF]

Journal of Advanced Biomedical and Pharmaceutical Sciences
Pyrazole and 1,3,4-oxadiazole are two key scaffolds in medicinal chemistry. The incorporation of both pharmacophores into a single hybrid molecule has attracted considerable attention because of the potential for synergistic enhancement of biological ...
Arwa Aboukar, Aliaa Mohassab, Heba Hassan, Mamdouh Mohamed   +3 more
doaj   +1 more source

Synthesis, Characterization and Biological activity of 1,3,4- Oxadiazole and 1,3,4- Thiadiazole Derivatives. [PDF]

, 2012
Various substituted 1,3,4-oxadiazole and 1,3,4-thiadiazole derivatives have been synthesized by cyclising semicarbazone and thiosemicarbazone in presence of ferric chloride and citric acid to form 2-amino-5-substituted 1,3,4-oxadiazole and 1,3,4 ...
Smylin Ajitha Rani, S
core  

Synthesis of Some New Heterocyclic Fused Rings Compounds Based on 5-Aryl-1,3,4-Oxadiazole

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
The work includes synthesis and characterization of some new heterocyclic compounds, as flow: The compound (3) (5-(4-chlorophenyl) -2-hydrazinyl-1,3,4-oxadiazole was synthesized by using two methods; the first method includes the direct reaction between
Zahra Mohammed Abbas, Dhuha Faruq Hussain, Raied Mustafa Shakir   +2 more
doaj  

A New Class of Aromatic Poly(1,3,4-oxadiazole)s and Poly(amide-1,3,4-oxadiazole)s Containing (Naphthalenedioxy)diphenylene Groups [PDF]

, 2002
: Polyhydrazides and poly(amide-hydrazide)s having inherent viscosities of 0.31-1.17 dL g −1 were prepared from two ether-naphthalene-dicarboxylic acids, 4,4'-(1,5-naphthalenedioxy)dibenzoic acid (1,5-NDA) and 4,4'-(2,3-naphthalenedioxy ...
Sheng-Huei Hsiao, Guey-Sheng Liou
core  

Synthesis and evaluation of some new 1,3,4-oxadiazoles bearing thiophene, thiazole, coumarin, pyridine and pyridazine derivatives as antiviral agents

Acta Pharmaceutica, 2019
In an attempt to produce heterocyclic compounds based on 1,3,4-oxadiazole derivatives with potential antiviral activity, synthesis of compound 1 [2-(5-thioxo-4,5-dihydro-1,3,4-oxadiazol-2-yl)acetonitrile] was performed through the reaction of cyanoacetic
Albratty Mohammed, El-Sharkawy Karam Ahmed, Alhazmi Hassan Ahmed   +2 more
doaj   +1 more source

Inorganic base-catalyzed formation of antivirally active N-substituted benzamides from α-amido sulfones and N-nucleophile

Chemistry Central Journal, 2011
Background Heteronucleophiles as well as carbanionic reagents can be used to react with α-amido sulfones, thus giving the opportunity to prepare a large array of amino derivatives.
Wang Zhenchao, Bhadury Pinaki S, Li Xiangyang, Hu Deyu, Song Baoan, Jin Yi, Yang Song   +6 more
doaj   +1 more source

Cristais líquidos colunares luminescentes com arquiteturas helicoidais [PDF]

, 2011
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2011Neste trabalho, foram projetadas duas famílias inéditas de ácidos carboxílicos com estrutura ...
Vieira, André Alexandre
core