Results 41 to 50 of about 12,947 (217)

Synthesis, Characterization and Biological Investigation of Some New Hydroxy – 1,3,4 – Oxadiazole Derivatives [PDF]

Kirkuk Journal of Science, 2016
study the solid compounds of hydroxy 1,3,4 – oxadiazoles have been synthesized by reaction of acid hydrazides with CS2 in the presence of KOH.
Afraa S. S, Jawdat H. A
doaj   +1 more source

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, Shereen Mohamed, Nagham Al-Niami   +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
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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, S. K. Saraf, Pankaj Sharma, Pradeep Kumar   +3 more
doaj   +1 more source

1,3,4-Oxadiazoles by Ugi-Tetrazole and Huisgen Reaction. [PDF]

Org Lett, 2019
Easy to perform, functional group tolerant, and short syntheses of the privileged scaffold oxadiazole are highly desired. Here, a metal-free protocol for MCR-based synthesis of 2,5-disubstituted 1,3,4-oxadiazoles via a Ugi-tetrazole/Huisgen sequence was developed.
Wang Q, Mgimpatsang KC, Konstantinidou M, Shishkina SV, Dömling A.   +4 more
europepmc   +5 more sources

Syntheses of Diheterocyclic Compounds Based on 2-Thioacetohydrazide-5,7-dimethyl-1,2,4-triazolo[1,5-a]- pyrimidine

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, Hai-Yang Tu, Chao-Nan Chen, Qiong Chen, Zu-Ming Liu   +4 more
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Design, synthesis, and biological investigation of oxadiazolyl, thiadiazolyl, and pyrimidinyl linked antipyrine derivatives as potential non-acidic anti-inflammatory agents

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, Abdelrahman Hamdi, Simone Brogi, Samar S. Tawfik, Dina I. A. Othman, Mahmoud Elshal, Hidayat Ur Rahman, Della G. T. Parambi, Rehab M. Elbargisy, Samy Selim, Ehab M. Mostafa, Ahmed A. B. Mohamed   +11 more
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Tyrosinase Inhibitory Activity, 3D QSAR, and Molecular Docking Study of 2,5-Disubstituted-1,3,4-Oxadiazoles

Journal of Chemistry, 2013
In continuation with our research program, in search of potent enzyme tyrosinase inhibitor, a series of synthesized 2,5-disubstituted 1,3,4-oxadiazoles have been evaluated for enzyme tyrosinase inhibitory activity.
Ramesh L. Sawant, Prashant D. Lanke, Jyoti B. Wadekar   +2 more
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Synthesis and cytotoxic activity evaluation of novel dihydroartemisinin and zerumbone conjugates with 2-mercapto-1,3,4-oxadiazoles as potential EGFR inhibitors

Journal of Chemical Research, 2023
Sixteen conjugates of dihydroartemisinin and zerumbone with 2-mercapto-1,3,4-oxadiazoles were synthesized and structurally elucidated by 1D NMR, 2D NMR, and HRMS spectra.
Duc Quan Tran, Ngoc Hung Truong, Thi Hoang Anh Nguyen, Thi Thuy Trinh, Thi Cham Ba, Thi Thuy Linh Nguyen, Xuan Ha Nguyen, Manh Cuong Nguyen, Van Chinh Luu   +8 more
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1,3,4-Oxadiazole-containing hybrids as potential anticancer agents: Recent developments, mechanism of action and structure-activity relationships

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, Santosh L. Gaonkar, Ebraheem Abdu Musad, Abdullah Mohammed AL Dawsar   +3 more
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