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Elewa MAF, Eldehna WM, Hamdan AME, Abd El-Kawi SH, El-Kalaawy AM, Majrashi TA, Barghash RF, Abdel-Aziz HA, Hashem KS, Al-Gayyar MMH. WRH-2412 alleviates the progression of hepatocellular carcinoma through regulation of TGF-β/β-catenin/α-SMA pathway. J Enzyme Inhib Med Chem 2023; 38:2185761. [PMID: 36912230 PMCID: PMC10013371 DOI: 10.1080/14756366.2023.2185761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Abstract
Hepatocellular carcinoma is considered one of the most lethal cancers, which is characterised by increasing prevalence associated with high level of invasion and metastasis. The novel synthetic pyrazolo[3,4-b]pyridine compound, WRH-2412, was reported to exhibit in vitro antitumor activity. This study was conducted to evaluate the antitumor activity of WRH-2412 in HCC induced in rats through affecting the TGF-β/β-catenin/α-SMA pathway. Antitumor activity of WRH-2412 was evaluated by calculating the rat's survival rate and by assessment of serum α-fetoprotein. Protein expression of TGF-β, β-catenin, E-cadherin, fascin and gene expression of SMAD4 and α-SMA were determined in hepatic tissue of rats. WRH-2412 produced antitumor activity by significantly increasing the rats' survival rate and decreasing serum α-fetoprotein. WRH-2412 significantly reduced an HCC-induced increase in hepatic TGF-β, β-catenin, SMAD4, fascin and α-SMA expression. In addition, WRH-2412 significantly increased hepatic E-cadherin expression.
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Affiliation(s)
- Mohammed A F Elewa
- Biochemistry Department, Faculty of Pharmacy, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, Egypt.,Department of Medicinal Chemistry, Faculty of Pharmacy, King Salman International University (KSIU), South Sinai, Egypt
| | - Ahmed M E Hamdan
- Department of Pharmacy Practice, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
| | - Samraa H Abd El-Kawi
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Asmaa M El-Kalaawy
- Department of Pharmacology, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Taghreed A Majrashi
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Reham F Barghash
- Institute of Chemical Industries Research, National Research Centre, Dokki, Giza, Egypt
| | - Hatem A Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Center, Dokki, Giza, Egypt
| | - Khalid S Hashem
- Biochemistry Department, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Mohammed M H Al-Gayyar
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
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2
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Elmorsy MR, Abdel-Latif E, Gaffer HE, Mahmoud SE, Fadda AA. Anticancer evaluation and molecular docking of new pyridopyrazolo-triazine and pyridopyrazolo-triazole derivatives. Sci Rep 2023; 13:2782. [PMID: 36797448 PMCID: PMC9935538 DOI: 10.1038/s41598-023-29908-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
3-Amino-4,6-dimethylpyrazolopyridine was applied as a precursor for the synthesis of some new pyridopyrazolo-triazine and pyridopyrazolo-triazole derivatives through diazotization, followed by coupling with many 2-cyanoacetamide compounds, ethyl 3-(phenylamino)-3-thioxopropanoate, 3-oxo-N-phenylbutanethioamide, and α-bromo-ketone reagents [namely; 2-bromo-1-(4-fluorophenyl)ethan-1-one, 5-bromo-2-(bromoacetyl)thiophene, 3-(2-bromoacetyl)-2H-chromen-2-one and/or 3-chloroacetylacetone]. The prepared compounds were identified by spectroscopic analyses as IR, 1H NMR, and mass data. The anticancer activity of these pyrazolopyridine analogues was investigated in colon, hepatocellular, breast, and cervix carcinoma cell lines. The pyridopyrazolo-triazine compound 5a substituted with a carboxylate group gave a distinguished value of IC50 = 3.89 µM against the MCF-7 cell line compared to doxorubicin as a reference drug. Also, the pyridopyrazolo-triazine compound 6a substituted with the carbothioamide function gave good activity toward HCT-116 and MCF-7 cell lines with IC50 values of 12.58 and 11.71 µM, respectively. The discovered pyrazolopyridine derivatives were studied theoretically by molecular docking, and this study exhibited suitable binding between the active sides of pyrazolopyridine ligands and proteins (PDB ID: 5IVE). The pyridopyrazolo-triazine compound 6a showed the highest free binding energy (- 7.8182 kcal/mol) when docked inside the active site of selected proteins.
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Affiliation(s)
- Mohamed R. Elmorsy
- grid.10251.370000000103426662Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516 Egypt
| | - Ehab Abdel-Latif
- grid.10251.370000000103426662Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516 Egypt
| | - Hatem E. Gaffer
- grid.419725.c0000 0001 2151 8157Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo, 12622 Egypt
| | - Samar E. Mahmoud
- grid.10251.370000000103426662Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516 Egypt
| | - Ahmed A. Fadda
- grid.10251.370000000103426662Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516 Egypt
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3
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Nayl AA, Ibrahim HM, Dawood KM, Arafa WAA, Abd-Elhamid AI, Ahmed IM, Abdelgawad MA, Ali HM, Alsohaimi IH, Aly AA, Bräse S, Mourad AK. High-Pressure Metal-Free Catalyzed One-Pot Two-Component Synthetic Approach for New 5-Arylazopyrazolo[3,4-b]Pyridine Derivatives. Molecules 2022; 27:molecules27196369. [PMID: 36234905 PMCID: PMC9572034 DOI: 10.3390/molecules27196369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/15/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
An appropriate and efficient Q-tube-assisted ammonium acetate-mediated protocol for the assembly of the hitherto unreported 5-arylazopyrazolo[3,4-b]pyridines was demonstrated. This methodology comprises the cyclocondensation reaction of 5-amino-2-phenyl-4H-pyrazol-3-one with an assortment of arylhydrazonals in an NH4OAc/AcOH buffer solution operating a Q-tube reactor. This versatile protocol exhibited several outstanding merits: easy work-up, mild conditions, scalability, broad substrate scope, safety (the Q-tube kit is simply for pressing and sealing), and a high atom economy. Consequently, performing such reactions under elevated pressures and utilizing the Q-tube reactor seemed preferable for achieving the required products in comparison to the conventional conditions. Diverse spectroscopic methods and X-ray single-crystal techniques were applied to confirm the proposed structure of the targeted compounds.
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Affiliation(s)
- AbdElAziz A. Nayl
- Department of Chemistry, College of Science, Jouf University, Sakaka 72341, Al Jouf, Saudi Arabia
- Correspondence: (A.A.N.); (H.M.I.); (S.B.)
| | - Hamada Mohamed Ibrahim
- Chemistry Department, Faculty of Science, Fayoum University, Fayoum 63514, Faiyum, Egypt
- Correspondence: (A.A.N.); (H.M.I.); (S.B.)
| | - Kamal M. Dawood
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Giza, Egypt
| | - Wael A. A. Arafa
- Department of Chemistry, College of Science, Jouf University, Sakaka 72341, Al Jouf, Saudi Arabia
| | - Ahmed I. Abd-Elhamid
- Composites and Nanostructured Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg Al-Arab 21934, Alexandria, Egypt
| | - Ismail M. Ahmed
- Department of Chemistry, College of Science, Jouf University, Sakaka 72341, Al Jouf, Saudi Arabia
| | - Mohamed A. Abdelgawad
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka 72341, Al Jouf, Saudi Arabia
| | - Hazim M. Ali
- Department of Chemistry, College of Science, Jouf University, Sakaka 72341, Al Jouf, Saudi Arabia
| | - Ibrahim Hotan Alsohaimi
- Department of Chemistry, College of Science, Jouf University, Sakaka 72341, Al Jouf, Saudi Arabia
| | - Ashraf A. Aly
- Chemistry Department, Faculty of Science, Organic Division, Minia University, El-Minia 61519, Menia, Egypt
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76133 Karlsruhe, Germany
- Institute of Biological and Chemical Systems—Functional Molecular Systems (IBCS-FMS), Director Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Correspondence: (A.A.N.); (H.M.I.); (S.B.)
| | - Asmaa Kamal Mourad
- Chemistry Department, Faculty of Science, Fayoum University, Fayoum 63514, Faiyum, Egypt
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4
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Keshk RM. Design, synthesis and characterization of novel pyrazolopyridine and pyridopyrazolopyrimidine derivatives. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Reda M. Keshk
- Department, Faculty of Science Damanhour University Damanhour Egypt
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Ribeiro RCB, Ferreira PG, Borges ADA, Forezi LDSM, da Silva FDC, Ferreira VF. 1,2-Naphthoquinone-4-sulfonic acid salts in organic synthesis. Beilstein J Org Chem 2022; 18:53-69. [PMID: 35047082 PMCID: PMC8744465 DOI: 10.3762/bjoc.18.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/15/2021] [Indexed: 12/04/2022] Open
Abstract
Several low molecular weight naphthoquinones are very useful in organic synthesis. These compounds have given rise to thousands of other naphthoquinones that have been tested against various microorganisms and pharmacological targets, including being used in the preparation of several drugs that are on the pharmaceutical market. Among these naphthoquinones, the series of compounds prepared from 1,2-naphthoquinone-4-sulfonic acid salts (β-NQS) stands out. In addition to being used in organic synthesis, they are excellent analytical derivatization reagents to spectrophotometrically determine drugs containing primary and secondary amino groups. This review summarizes the literature involving β-NQS.
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Affiliation(s)
- Ruan Carlos B Ribeiro
- Universidade Federal Fluminense, Departamento de Química Orgânica, Instituto de Química, Campus do Valonguinho, 24020-150, Niterói-RJ, Brazil
| | - Patricia G Ferreira
- Universidade Federal Fluminense, Faculdade de Farmácia, Departamento de Tecnologia Farmacêutica, 24241-000, Niterói-RJ, Brazil
| | - Amanda de A Borges
- Universidade Federal Fluminense, Departamento de Química Orgânica, Instituto de Química, Campus do Valonguinho, 24020-150, Niterói-RJ, Brazil
| | - Luana da S M Forezi
- Universidade Federal Fluminense, Departamento de Química Orgânica, Instituto de Química, Campus do Valonguinho, 24020-150, Niterói-RJ, Brazil
| | - Fernando de Carvalho da Silva
- Universidade Federal Fluminense, Departamento de Química Orgânica, Instituto de Química, Campus do Valonguinho, 24020-150, Niterói-RJ, Brazil
| | - Vitor F Ferreira
- Universidade Federal Fluminense, Faculdade de Farmácia, Departamento de Tecnologia Farmacêutica, 24241-000, Niterói-RJ, Brazil
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6
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Abdou MM, Abu-Rayyan A, Bedir AG, Abdel-Fattah S, Omar AMA, Ahmed AA, El-Desoky ESI, Ghaith EA. 3-(Bromoacetyl)coumarins: unraveling their synthesis, chemistry, and applications. RSC Adv 2021; 11:38391-38433. [PMID: 35493203 PMCID: PMC9044231 DOI: 10.1039/d1ra05574g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/21/2021] [Indexed: 12/17/2022] Open
Abstract
This review emphasizes recent developments in synthetic routes of 3-(bromoacetyl)coumarin derivatives. Also, chemical reactions of 3-(bromoacetyl)coumarins as versatile building blocks in the preparation of critical polyfunctionalized heterocyclic systems and other industrially significant scaffolds are described. Recent advances of 3-(bromoacetyl)coumarins as attractive starting points towards a wide scale of five and six-membered heterocyclic systems such as thiophenes, imidazoles, pyrazoles, thiazoles, triazoles, pyrans, pyridines, thiadiazins as well as fused heterocyclic systems have been reported. Additionally, this review covers a wide range of analytical chemistry, fluorescent sensors, and biological applications of these moieties, covering the literature till May 2021.
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Affiliation(s)
- Moaz M Abdou
- Egyptian Petroleum Research Institute Nasr City Cairo 11727 Egypt
| | - Ahmed Abu-Rayyan
- Faculty of Science, Applied Science Private University P. O. BOX 166 Amman 11931 Jordan
| | - Ahmed G Bedir
- Egyptian Petroleum Research Institute Nasr City Cairo 11727 Egypt
| | - S Abdel-Fattah
- Egyptian Petroleum Research Institute Nasr City Cairo 11727 Egypt
| | - A M A Omar
- Egyptian Petroleum Research Institute Nasr City Cairo 11727 Egypt
| | - Abdullah A Ahmed
- Department of Chemistry, Faculty of Science, Al-Azhar University Cairo 11884 Egypt
| | - El-Sayed I El-Desoky
- Department of Chemistry, Faculty of Science, Mansoura University Mansoura 35516 Egypt
| | - Eslam A Ghaith
- Department of Chemistry, Faculty of Science, Mansoura University Mansoura 35516 Egypt
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7
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Barghash RF, Eldehna WM, Kovalová M, Vojáčková V, Kryštof V, Abdel-Aziz HA. One-pot three-component synthesis of novel pyrazolo[3,4-b]pyridines as potent antileukemic agents. Eur J Med Chem 2021; 227:113952. [PMID: 34731763 DOI: 10.1016/j.ejmech.2021.113952] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/14/2021] [Accepted: 10/23/2021] [Indexed: 01/10/2023]
Abstract
In the current study, we report on the development of novel series of pyrazolo[3,4-b]pyridine derivatives (8a-u, 11a-n, and 14a,b) as potential anticancer agents. The prepared pyrazolo[3,4-b]pyridines have been screened for their antitumor activity in vitro at NCI-DTP. Thereafter, compound 8a was qualified by NCI for full panel five-dose assay to assess its GI50, TGI and LC50 values. Compound 8a showed broad-spectrum anti-proliferative activities over the whole NCI panel, with outstanding growth inhibition full panel GI50 (MG-MID) value equals 2.16 μM and subpanel GI50 (MG-MID) range: 1.92-2.86 μM. Furthermore, pyrazolo[3,4-b]pyridines 8a, 8e-h, 8o, 8u, 11a, 11e, 11h, 11l and 14a-b were assayed for their antiproliferative effect against a panel of leukemia cell lines (K562, MV4-11, CEM, RS4;11, ML-2 and KOPN-8) where they possessed moderate to excellent anti-leukemic activity. Moreover, pyrazolo[3,4-b]pyridines 8o, 8u, 14a and 14b were further explored for their effect on cell cycle on RS4;11 cells, in which they dose-dependently increased populations of cells in G2/M phases. Finally we analyzed the changes of selected proteins (HOXA9, MEIS1, PARP, BcL-2 and McL-1) related to cell death and viability in RS4;11 cells via Western blotting. Collectively, the obtained results suggested pyrazolo[3,4-b]pyridines 8o, 8u, 14a and 14b as promising lead molecules for further optimization to develop more potent and efficient anticancer candidates.
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Affiliation(s)
- Reham F Barghash
- Institute of Chemical Industries Researches, National Research Centre, Dokki, Giza, P.O. Box 12622, Egypt.
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, 33516, Egypt.
| | - Markéta Kovalová
- Department of Experimental Biology, Palacky University, Slechtitelu 27, 78371, Olomouc, Czech Republic
| | - Veronika Vojáčková
- Department of Experimental Biology, Palacky University, Slechtitelu 27, 78371, Olomouc, Czech Republic
| | - Vladimír Kryštof
- Department of Experimental Biology, Palacky University, Slechtitelu 27, 78371, Olomouc, Czech Republic
| | - Hatem A Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Center, Dokki, Giza, P.O. Box 12622, Egypt
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8
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Gouda MA, Qurban J. Recent progress on the synthetic routes of 5-amino-2,4-dihydro-3H-pyrazol-3-one derivatives and their reactivity Part (I). SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1885717] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Moustafa A. Gouda
- Department of Chemistry, Faculty of Science and Arts, Ulla, Taibah University, Saudi Arabia
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Jihan Qurban
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
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El-Bana GG, Zoorob HH, Ibrahim ME, Hamama WS. Advances in 4,6‐dimethyl-3-amino-3 H-pyrazolo[3,4-b] pyridine-based and their annulated systems. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1786126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ghada G. El-Bana
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Hanafi H. Zoorob
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Mona E. Ibrahim
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Wafaa S. Hamama
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
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10
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El-Sayed EH, Mohamed KS. Synthesis and Anti-inflammatory Evaluation of Some New Pyrazole, Pyrimidine, Pyrazolo[1,5-a]Pyrimidine, Imidazo[1,2-b]Pyrazole and Pyrazolo[5,1-b]Quinazoline Derivatives Containing Indane Moiety. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2019.1653941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | - Khaled S. Mohamed
- Engineering Chemistry Department, Higher Institute for Engineering and Technology, New Damietta, Egypt
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11
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Emam SM, Abouel‐Enein SA, Abdel‐Satar EM. Structural characterization, thermal investigation and biological activity of metal complexes containing Schiff Base ligand (Z)‐3‐(1‐((4,6‐dimethyl‐1H‐pyrazolo[3,4‐b] pyridin‐3‐yl)imino)ethyl)‐4‐hydroxy‐6‐methyl‐2H‐pyran‐2‐one. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4847] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sanaa M. Emam
- Chemistry Department, Faculty of ScienceMenoufia University Shebin El‐Kom Egypt
| | | | - Eman M. Abdel‐Satar
- Chemistry Department, Faculty of ScienceMenoufia University Shebin El‐Kom Egypt
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12
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Design, synthesis, antimicrobial, antiquorum-sensing and antitumor evaluation of new series of pyrazolopyridine derivatives. Eur J Med Chem 2018; 157:729-742. [DOI: 10.1016/j.ejmech.2018.08.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 12/21/2022]
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13
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Silva VLM, Elguero J, Silva AMS. Current progress on antioxidants incorporating the pyrazole core. Eur J Med Chem 2018; 156:394-429. [PMID: 30015075 DOI: 10.1016/j.ejmech.2018.07.007] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/02/2018] [Accepted: 07/03/2018] [Indexed: 12/31/2022]
Abstract
The search of new antioxidants, as drugs candidates, is an active field of medicinal chemistry. The synthesis of compounds with antioxidant potential has increased in recent years and a high number of structurally diverse compounds have been published. This review aims to show the current state-of-the-art on the development of antioxidant compounds incorporating the pyrazole pharmacophore. It is a well-timed review driven by the increasing number of papers, on this issue, that have been published since the beginning of the 21st century (from 2000 to 2017). The aim is to look deeper into the structures already published in the literature containing the pyrazole core as the unique pharmacophore or combined with other pharmacophores and see the relationship between the presence of this five-membered nitrogen heterocycle and the behaviour of the compounds as potential antioxidant agents. An attempt was made to whenever possible establish structure-activity relationships that could help the design of new and more potent antioxidant agents containing this important pharmacophore.
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Affiliation(s)
- Vera L M Silva
- Department of Chemistry & QOPNA, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - J Elguero
- Instituto de Química Médica, CSIC, Juan de la Cierva, 3, E-28006, Madrid, Spain.
| | - Artur M S Silva
- Department of Chemistry & QOPNA, University of Aveiro, 3810-193, Aveiro, Portugal.
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Arlan FM, Khalafy J, Maleki R. One-pot three-component synthesis of a series of 4-aroyl-1,6-diaryl-3-methyl-1H-pyrazolo[3,4-b]pyridine-5-carbonitriles in the presence of aluminum oxide as a nanocatalyst. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2229-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Worachartcheewan A, Nantasenamat C, Prachayasittikul S, Aiemsaard A, Prachayasittikul V. Towards the design of 3-aminopyrazole pharmacophore of pyrazolopyridine derivatives as novel antioxidants. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1967-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Maksimova VN, Naidenova AI, Ershov OV, Nasakin OE, Tafeenko VA. Synthesis of 3-aminopyrazolo[3,4-b]pyridine-4-carbonitriles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1070428016120204] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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17
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Abstract
AbstractNew hybrid compounds, thienopyrimidinyl-1
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18
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Bakulina OY, Ivanov AY, Dar’in DV, Lobanov PS. New transformations of 2-methylsulfanyl-4,6-dichloropyrimidine- 5-carbaldehyde involving enamines: synthesis of condensed azines. MENDELEEV COMMUNICATIONS 2014. [DOI: 10.1016/j.mencom.2014.04.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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1-Cyanoacetyl-3,5-dimethylpyrazole – effective cyanoacetylating agent and a new building block for the synthesis of heterocyclic compounds (Review). Chem Heterocycl Compd (N Y) 2012. [DOI: 10.1007/s10593-012-1116-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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