Results 51 to 60 of about 37,093 (255)
Synthesis of some substituted 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles from 2-(2,3-dimethylphenyl amino) benzoic acid [PDF]
مجلة التربية والعلم, 2009 In this paper the synthesis of some substituted 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles was achieved. 2-(2,3-dimethyl phenyl amino) benzoic acid was esterified to its ethyl ester by its reaction with absolute ethanol in presence of ...
Khalid Daoud +2 more
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Arylation Reactions in the Synthesis of Biologically Important 2,5-Diaryl-1,3,4-Oxadiazoles
Applied Sciences, 2022 Apart from carbon atoms, some cyclic molecules contain other elements and play an extraordinary role in human life. Among these systems, 1,3,4-oxadiazole derivatives deserve special attention due to their biological properties such as antibacterial ...
Monika Olesiejuk, Agnieszka Kudelko
doaj +1 more source
A survey of liquid crystalline oxadiazoles
, 2008 We propose a survey of those oxadiazole compounds, which are mesogenic. We will see that they can have bend-shaped molecules, a biaxial nematic phase, or other interesting peculiarities in the nematic and smectic phase.
Sparavigna, Amelia
core +1 more source
Syntheses, Evaluation and Characterization of Some 1, 3, 4-Oxadiazoles as Antimicrobial Agents
E-Journal of Chemistry, 2009 1,3,4-Oxadiazoles show various biological activities and have been synthesized from different compounds. 1,3,4-oxadiazole is popularly known for its antimicrobial, anti-inflammatory, pesticidal and antihypertensive activities etc.
Niti Bhardwaj +3 more
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Electrophilic activation of nitroalkanes in efficient synthesis of 1,3,4-oxadiazoles. [PDF]
RSC Adv, 2019 A novel methodology for general and chemoselective preparation of non-symmetric 1,3,4-oxadiazoles is developed. This unusual reaction proceeds via polyphosphoric acid-assisted activation of nitroalkanes towards nucleophilic attack with acylhydrazides.
Aksenov AV +6 more
europepmc +2 more sources
New resource-efficient and green synthesis methods for biologically active derivatives of urea [PDF]
, 2017 Developed were highly effective solvent-free processes for preparation of substituted ureas containingpharmacophore substituents (benzhydryl ureas, dihydroquinazolinones, semicarbazones, thiosemicarbazonesand guanylhydrazones), consistent with green ...
Filimonov, Viktor Dmitrievich +3 more
core +2 more sources
Journal of Enzyme Inhibition and Medicinal Chemistry, 2023 A novel series of 12 antipyrine derivatives containing 1,3,4-oxadiazoles (4a-d), 1,3,4-thiadiazoles (6a-d), and pyrimidines (8a-d), was preparedand assessed for its potential in vitro COX-2 inhibitors.
Mohammad M. Al-Sanea +11 more
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Protease inhibitors targeting coronavirus and filovirus entry. [PDF]
, 2015 In order to gain entry into cells, diverse viruses, including Ebola virus, SARS-coronavirus and the emerging MERS-coronavirus, depend on activation of their envelope glycoproteins by host cell proteases.
Agudelo, Juliet +10 more
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Molecules, 2008 The syntheses of some diheterocyclic compounds from 2-thioacetohydrazide- 5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine (1) are described. Compound 1 can be converted into triazoles, 1,3,4-oxadiazoles, and 1,3,4-thiadiazoles.
Guang-Fu Yang +4 more
doaj +1 more source
Journal of Saudi Chemical Society, 2021 Chemotherapy is an important therapeutic approach for the treatment of cancer. Currently, many anticancer drugs are available in the market that plays an important role in cancer treatment, but concerns such as, drug resistance and side effects create an
Swarnagowri Nayak +3 more
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