24068-15-3Relevant articles and documents
Synthesis and in vitro antiproliferative activity of new 1,3,4-oxadiazole derivatives possessing sulfonamide moiety
Gamal El-Din, Mahmoud M.,El-Gamal, Mohammed I.,Abdel-Maksoud, Mohammed S.,Yoo, Kyung Ho,Oh, Chang-Hyun
, p. 45 - 52 (2015)
Synthesis of a new series of 1,3,4-oxadiazole derivatives possessing sulfonamide moiety is described. Their in vitro antiproliferative activities against NCI-58 human cancer cell lines of nine different cancer types were tested. Compound 1k with p-methoxybenzenesulfonamido moiety showed the highest mean %inhibition value over the 58 cell line panel at 10 μM concentration. It showed broad-spectrum antiproliferative activity over many cell lines of different cancer types. For instance, compound 1k inhibited the growth of T-47D breast cancer cell line by 90.47% at 10 μM. And it inhibited growth of SR leukemia, SK-MEL-5 melanoma, and MDA-MB-468 breast cancer cell lines by more than 80% at the same test concentration. Compound 1k showed superior activity than Paclitaxel and Gefitinib against the most sensitive cell lines.
Conjugated oligo-aromatic compounds bearing a 3,4,5-trimethoxy moiety: Investigation of their antioxidant activity correlated with a DFT Study
Kareem, Huda S.,Nordin, Nurdiana,Heidelberg, Thorsten,Abdul-Aziz, Azlina,Ariffin, Azhar,Bunce, Richard A.
, (2016)
A series of heterocyclic compounds bearing the well-known free radical scavenging 3,4,5-trimethoxybenzyloxy group, was synthesized. The key compound 4-(3,4,5-trimethoxybenzyl-oxy)benzohydrazide was converted into thiosemicarbazide derivatives, which were
Discovery of novel furo[2,3-d]pyrimidin-2-one–1,3,4-oxadiazole hybrid derivatives as dual antiviral and anticancer agents that induce apoptosis
El Mansouri, Az-eddine,Oubella, Ali,Danoun, Karim,Ahmad, Mehdi,Neyts, Johan,Jochmans, Dirk,Snoeck, Robert,Andrei, Graciela,Morjani, Hamid,Zahouily, Mohamed,Lazrek, Hassan B.
, (2021/06/17)
A new series of furo[2,3-d]pyrimidine–1,3,4-oxadiazole hybrid derivatives were synthesized via an environmentally friendly, multistep synthetic tool and a one-pot Songoashira-heterocyclization protocol using, for the first time, nanostructured palladium pyrophosphate (Na2PdP2O7) as a heterogeneous catalyst. Compounds 9a–c exhibited broad-spectrum activity with low micromolar EC50 values toward wild and mutant varicella-zoster virus (VZV) strains. Compound 9b was up to threefold more potent than the reference drug acyclovir against thymidine kinase-deficient VZV strains. Importantly, derivative 9b was not cytostatic at the maximum tested concentration (CC50 > 100 μM) and had an acceptable selectivity index value of up to 7.8. Moreover, all synthesized 1,3,4-oxadiazole hybrids were evaluated for their cytotoxic activity in four human cancer cell lines: fibrosarcoma (HT-1080), breast (MCF-7 and MDA-MB-231), and lung carcinoma (A549). Data showed that compound 8f exhibits moderate cytotoxicity, with IC50 values ranging from 13.89 to 19.43 μM. Besides, compound 8f induced apoptosis through caspase 3/7 activation, cell death independently of the mitochondrial pathway, and cell cycle arrest in the S phase for HT1080 cells and the G1/M phase for A549 cells. Finally, the molecular docking study confirmed that the anticancer activity of the synthesized compounds is mediated by the activation of caspase 3.
Design and synthesis of pyrimidine-5-carbonitrile hybrids as COX-2 inhibitors: Anti-inflammatory activity, ulcerogenic liability, histopathological and docking studies
Alfayomy, Abdallah M.,Abdel-Aziz, Salah A.,Marzouk, Adel A.,Shaykoon, Montaser Sh. A.,Narumi, Atsushi,Konno, Hiroyuki,Abou-Seri, Sahar M.,Ragab, Fatma A.F.
, (2021/01/04)
Two new series of 1,3,4-oxadiazole and coumarin derivatives based on pyrimidine-5-carbonitrile scaffold have been synthesized and evaluated for their COX-1/COX-2 inhibitory activity. Compounds 10c, 10e, 10h-j, 14e-f, 14i and 16 were found to be the most potent and selective inhibitors of COX-2 (IC50 0.041–0.081 μM, SI 139.74–321.95). Eight compounds were further investigated for their in vivo anti-inflammatory activity. The most active derivatives 10c, 10j and 14e displayed superior in vivo anti-inflammatory activity (% edema inhibition 39.3–48.3, 1 h; 58.4–60.5, 2 h; 70.8–83.2, 3 h; 78.9–89.5, 4 h) to the reference drug celecoxib (% edema inhibition 38.0, 1 h; 48.8, 2 h; 58.4, 3 h; 65.4, 4 h). These derivatives were also tested for their ulcerogenic liability, compound 10j showed better safety profile with reference to celecoxib while 10c and 14e exhibited mild lesions. Molecular docking studies of 10c, 10j, and 14e in the COX-2 active site revealed similar orientation and binding interactions as selective COX-2 inhibitors with a higher liability to access the selectivity side pocket.
Design, synthesis, and evaluation of N-benzylpyrrolidine and 1,3,4-oxadiazole as multitargeted hybrids for the treatment of Alzheimer's disease
Choubey, Priyanka Kumari,Tripathi, Avanish,Tripathi, Manish Kumar,Seth, Ankit,Shrivastava, Sushant Kumar
, (2021/05/05)
Novel N-Benzylpyrrolidine hybrids were designed, synthesized, and tested against multiple in-vitro and in-vivo parameters. Among all the synthesized molecules, 8f and 12f showed extensive inhibition against beta-secretase-1 (hBACE-1), human acetylcholinesterase (hAChE) & human butyrylcholinesterase (hBuChE). These molecules are also endowed with significant AChE-peripheral anionic site (PAS) binding capability, blood-brain barrier permeability, potential disassembly of Aβ aggregates along with neuroprotection ability on SHSY-5Y cell lines. Results of the Y-Maze and Morris water maze test concluded that compounds 8f and 12f ameliorated cognitive dysfunction induced by scopolamine and Aβ. The ex-vivo activity was executed on rat's brain homogenate indicating a reduction in AChE level and oxidative stress. The pharmacokinetic investigation ascertained considerable oral absorption profile of the lead 12f. The results of the in silico docking studies and molecular dynamics simulations demonstrated stable interactions of compounds 8f and 12f with the target residues of hAChE, hBuChE and hBACE-1.
Oxazole ring-containing honokiol thioether derivative and preparation method and application thereof
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Paragraph 0042; 0047-0048, (2021/08/11)
The invention discloses an oxazole ring-containing honokiol thioether derivative, a preparation method thereof and application of the oxazole ring-containing honokiol thioether derivative as an alpha-glucosidase inhibitor, the chemical structure of the oxazole ring-containing honokiol thioether derivative is shown as a general formula (I), and R is selected from non-substituted or substituted phenyl. Compared with the prior art, the invention provides the novel honokiol thioether derivative containing the oxazole ring, and the honokiol thioether derivative containing the oxazole ring has good inhibitory activity on alpha-glucosidase, provides more possibilities for treating diabetes, and is expected to be used for preparing novel candidate drug molecules for treating diabetes. In addition, the preparation process is simple, the cost is low, and the yield is high.
Synthesis and biological evaluation of honokiol derivatives bearing 3-((5-phenyl-1,3,4-oxadiazol-2-yl)methyl)oxazol-2(3h)-ones as potential viral entry inhibitors against sars-cov-2
Bai, Li-Ping,Guo, Yong,Jiang, Zhi-Hong,Liu, Jia-Zheng,Meng, Jie-Ru,Xu, Ting,Zheng, Zhi-Yuan
, (2021/09/08)
The 2019 coronavirus disease (COVID-19) caused by SARS-CoV-2 virus infection has posed a serious danger to global health and the economy. However, SARS-CoV-2 medications that are specific and effective are still being developed. Honokiol is a bioactive component from Magnoliae officinalis Cortex with damp-drying effect. To develop new potent antiviral molecules, a series of novel honokiol analogues were synthesized by introducing various 3-((5-phenyl-1,3,4-oxadiazol-2-yl)methyl)oxazol-2(3H)-ones to its molecule. In a SARS-CoV-2 pseudovirus model, all honokiol derivatives were examined for their antiviral entry activities. As a result, 6a and 6p demonstrated antiviral entry effect with IC50 values of 29.23 and 9.82 μM, respectively. However, the parental honokiol had a very weak antiviral activity with an IC50 value more than 50 μM. A biolayer interfero-metry (BLI) binding assay and molecular docking study revealed that 6p binds to human ACE2 protein with higher binding affinity and lower binding energy than the parental honokiol. A competitive ELISA assay confirmed the inhibitory effect of 6p on SARS-CoV-2 spike RBD’s binding with ACE2. Importantly, 6a and 6p (TC50 > 100 μM) also had higher biological safety for host cells than honokiol (TC50 of 48.23 μM). This research may contribute to the discovery of potential viral entrance inhibitors for the SARS-CoV-2 virus, although 6p’s antiviral efficacy needs to be validated on SARS-CoV-2 viral strains in a biosafety level 3 facility.
One-potCuAAC synthesis of (1H-1,2,3-triazol-1-yl)methyl-1,3,4/1,2,4-oxadiazoles starting from available chloromethyl-1,3,4/1,2,4-oxadiazoles
Pokhodylo, Nazariy T.,Savka, Roman D.,Shyyka, Olga Ya.,Obushak, Mykola D.
, p. 2969 - 2976 (2020/05/25)
The one-pot CuAAC synthesis of (1H-1,2,3-triazol-1-yl)methyl-1,3,4-oxadiazole and (1H-1,2,3-triazol-1-yl)methyl-1,2,4-oxadiazole derivatives via three-component reaction of consequent nucleophilic substitution of chlorine, with azide, and its further “cli
Novel Molecular Hybrids of N-Benzylpiperidine and 1,3,4-Oxadiazole as Multitargeted Therapeutics to Treat Alzheimer's Disease
Sharma, Piyoosh,Tripathi, Avanish,Tripathi, Prabhash Nath,Singh, Saumitra Sen,Singh, Surya Pratap,Shrivastava, Sushant Kumar
, p. 4361 - 4384 (2019/10/16)
Multitargeted hybrids of N-benzylpiperidine and substituted 5-phenyl-1,3,4-oxadiazoles were designed, synthesized, and evaluated against Alzheimer's disease (AD). Tested compounds exhibited moderate to excellent inhibition against human acetylcholinesterase (hAChE), butyrylcholinesterase (hBChE), and beta-secretase-1 (hBACE-1). The potential leads 6g and 10f exhibited balanced inhibitory profiles against all the targets, with a substantial displacement of propidium iodide from the peripheral anionic site of hAChE. Hybrids 6g and 10f also elicited favorable permeation across the blood-brain barrier and were devoid of neurotoxic liability toward SH-SY5Y neuroblastoma cells. Both leads remarkably disassembled Aβ aggregation in thioflavin T-based self- and AChE-induced experiments. Compounds 6g and 10f ameliorated scopolamine-induced cognitive dysfunctions in the Y-maze test. The ex vivo studies of rat brain homogenates established the reduced AChE levels and antioxidant activity of both compounds. Compound 6g also elicited noteworthy improvement in Aβ-induced cognitive dysfunctions in the Morris water maze test with downregulation in the expression of Aβ and BACE-1 proteins corroborated by Western blot and immunohistochemical analysis. The pharmacokinetic study showed excellent oral absorption characteristics of compound 6g. The in silico molecular docking and dynamics simulation studies of lead compounds affirmed their consensual binding interactions with PAS-AChE and aspartate dyad of BACE-1.
Design, synthesis and biological evaluation of 2-(phenoxymethyl)-5-phenyl-1,3,4-oxadiazole derivatives as anti-breast cancer agents
Lakshmithendral,Saravanan,Elancheran,Archana,Manikandan,Arjun,Ramanathan,Lokanath,Kabilan
, p. 1 - 10 (2019/02/25)
Structural based molecular docking approach revealed the findings of 2-(phenoxymethyl) -5-phenyl-1,3,4-oxadiazole derivatives. The compounds (7a-o) were synthesized and characterized well by using conventional methods. The compounds, 7b and 7m were reconfirmed through single crystal XRD analysis. The synthesized compounds (7a-o) were evaluated their antiproliferative activities against MCF-7 and MDA-MB-453. Furthermore, Lipinski's rule of five and pharmacokinetic properties were predicted for the test compounds. These results demonstrate that the compounds 7b and 7d exhibit more potent cytotoxicity and 7d exhibits dose-dependent activity and reduced cell viability. Further, the mechanism of action for the induced apoptosis was observed through morphological changes and western blotting analysis. These findings may furnish the lead for further development.
