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Liu YY, Yi YJ, Ye J, Hu AX. Design, synthesis and neuraminidase inhibitory activity of 4-methyl-5-(3-phenylacryloyl) thiazoles. Mol Divers 2024; 28:1129-1140. [PMID: 36959424 DOI: 10.1007/s11030-023-10639-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/17/2023] [Indexed: 03/25/2023]
Abstract
A series of 4-methyl-5-(3-phenylacryloyl)thiazoles based on chalcones were designed, synthesized and evaluated for their influenza neuraminidase (NA) inhibitory activity in vitro. A preliminary structure-activity relationship (SAR) analysis showed that thiazoles bearing amide had greater potency. It also showed that mono-hydroxyl group at 4-position on phenyl ring was more effective than other electron-releasing groups or electron-withdraw groups. Compounds A2 and A26 were more potent against NA with IC50 values of 8.2 ± 0.5 μg/mL and 6.2 ± 1.4 μg/mL, respectively. Molecular docking study demonstrated that thiazoles skeleton was benefit for the NA inhibitory activity.
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Affiliation(s)
- Yu-Yang Liu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Yang-Jie Yi
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Jiao Ye
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
| | - Ai-Xi Hu
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
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2
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High throughput screening identifies inhibitors for parvovirus B19 infection of human erythroid progenitor cells. J Virol 2021; 96:e0132621. [PMID: 34669461 DOI: 10.1128/jvi.01326-21] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Parvovirus B19 (B19V) infection can cause hematological disorders and fetal hydrops during pregnancy. Currently, no antivirals or vaccines are available for the treatment or the prevention of B19V infection. To identify novel small-molecule antivirals against B19V replication, we developed a high throughput screening assay, which is based on an in vitro nicking assay using recombinant N-terminal 1-176 amino acids of the viral large nonstructural protein (NS1N) and a fluorescently labeled DNA probe (OriQ) that spans the nicking site of the viral DNA replication origin. We collectively screened 17,040 compounds and identified 2,178 (12.78%) hits that possess >10% inhibition of the NS1 nicking activity, among which 84 hits were confirmed to inhibit nicking in a dose-dependent manner. Using ex vivo expanded primary human erythroid progenitor cells (EPCs) infected by B19V, we validated 24 compounds demonstrated >50% in vivo inhibition of B19V infection at 10 μM, which can be categorized into 7 structure scaffolds. Based on the therapeutic index [half maximal cytotoxic concentration (CC50)/half maximal effective concentration (EC50)] in EPCs, the top 4 compounds were chosen to examine their inhibitions of B19V infection in EPCs at two times of the 90% maximal effective concentration (EC90). A purine derivative (P7), demonstrated an antiviral effect (EC50=1.46 μM) without prominent cytotoxicity (CC50=71.8 μM) in EPCs, exhibited 92% inhibition of B19V infection in EPCs at 3.32 μM, which can be used as the lead compound in future studies for the treatment of B19V infection caused hematological disorders. Importance B19V encodes a large non-structural protein NS1. Its N-terminal domain (NS1N) consisting of 1-176 amino acids binds to viral DNA and serves as an endonuclease to nick the viral DNA replication origins, which is a pivotal step in rolling hairpin-dependent B19V DNA replication. For high throughput screening (HTS) of anti-B19V antivirals, we miniaturized a fluorescence-based in vitro nicking assay, which employs a fluorophore-labeled probe spanning the trs and the NS1N protein, into a 384-well plate format. The HTS assay showed a high reliability and capability in screening 17,040 compounds. Based on the therapeutic index [half maximal cytotoxic concentration (CC50)/half maximal effective concentration (EC50)] in EPCs, a purine derivative demonstrated an antiviral effect of 92% inhibition of B19V infection in EPCs at 3.32 μM (two times EC90). Our study demonstrated a robust HTS assay for screening antivirals against B19V infection.
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Zhong ZJ, Cheng LP, Pang W, Zheng XS, Fu SK. Design, synthesis and biological evaluation of dihydrofurocoumarin derivatives as potent neuraminidase inhibitors. Bioorg Med Chem Lett 2021; 37:127839. [PMID: 33556571 DOI: 10.1016/j.bmcl.2021.127839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/15/2021] [Accepted: 01/30/2021] [Indexed: 01/07/2023]
Abstract
Neuraminidase (NA) is a promising target for development of anti-influenza drugs. In this study a dihydrofurocoumarin derivative ZINC05577497 was discovered as a lead NA inhibitor based on docking-based virtual screening technique. The optimization of lead ZINC05577497 led to the discovery of a series of novel NA inhibitors 5a-5j. Compound 5b has the most potent activity against NA with IC50 = 0.02 µM, which is lower than those of the reference oseltamivir carboxylate (OSC) (IC50 = 0.04 µM) and ZINC05577497 (IC50 = 0.11 µM). Other target compounds also show potential inhibition of NA activity. Molecular docking results indicate that the good potency of 5b may be attributed to the elongation of the dihydrofurocoumarin ring to the 150-cavity. The results of this paper will be useful to discover more potent NA inhibitors.
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Affiliation(s)
- Zhi Jian Zhong
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Li Ping Cheng
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
| | - Wan Pang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
| | - Xue Song Zheng
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Shi Kai Fu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China
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Hussein AHM, Khames AA, El-Adasy ABA, Atalla AA, Abdel-Rady M, Hassan MIA, Abou-Salim MA, Elshaier YAMM, Barakat A. Multifunctional Isosteric Pyridine Analogs-Based 2-Aminothiazole: Design, Synthesis, and Potential Phosphodiesterase-5 Inhibitory Activity. Molecules 2021; 26:902. [PMID: 33572094 PMCID: PMC7915674 DOI: 10.3390/molecules26040902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 11/23/2022] Open
Abstract
The elaboration of new small molecules that target phosphodiesterase enzymes (PDEs), especially those of type 5 (PDE5), is an interesting and emerging topic nowadays. A new series of heterocycle-based aminothiazoles were designed and synthesized from the key intermediate, 3-oxo-N-(thiazol-2-yl)butanamide (a PDE5 inhibitor that retains its amidic function), as an essential pharmacophoric moiety. The PDE5 inhibitors prevent the degradation of cyclic guanosine monophosphate, thereby causing severe hypotension as a marked side effect. Hence, an in vivo testing of the target compounds was conducted to verify its relation with arterial blood pressure. Utilizing sildenafil as the reference drug, Compounds 5, 10a, and 11b achieved 100% inhibitions of PDE5 without significantly lowering the mean arterial blood pressures (115.95 ± 2.91, 110.3 ± 2.84, and 78.3 ± 2.57, respectively). The molecular docking study revealed that the tested compounds exhibited docking poses that were similar to that of sildenafil (exploiting the amide functionality that interacted with GLN:817:A). The molecular shape and electrostatic similarity revealed a comparable physically achievable electrostatic potential with the reference drug, sildenafil. Therefore, these concomitant results revealed that the tested compounds exerted sildenafil-like inhibitory effects (although without its known drawbacks) on blood circulation, thus suggesting that the tested compounds might represent a cornerstone of beneficial drug candidates for the safe treatment for erectile dysfunction.
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Affiliation(s)
| | - Ahmed A Khames
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Abu-Bakr A El-Adasy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Ahmed A Atalla
- Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Mohamed Abdel-Rady
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Mohamed I A Hassan
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Mahrous A Abou-Salim
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Yaseen A M M Elshaier
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, Menoufiya 32958, Egypt
| | - Assem Barakat
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt
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Design, synthesis, and bioassay of 4-thiazolinone derivatives as influenza neuraminidase inhibitors. Eur J Med Chem 2021; 213:113161. [PMID: 33540229 DOI: 10.1016/j.ejmech.2021.113161] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/13/2020] [Accepted: 01/03/2021] [Indexed: 01/09/2023]
Abstract
A series of 4-thiazolinone derivatives (D1-D58) were designed and synthesized. All of the derivatives were evaluated in vitro for neuraminidase (NA) inhibitory activities against influenza virus A (H1N1), and the inhibitory activities of the five most potent compounds were further evaluated on NA from two different influenza viral subtypes (H3N2 and B), and then their in vitro anti-viral activities were evaluated using the cytopathic effect (CPE) reduction assay. The results showed that the majority of the target compounds exhibited moderate to good NA inhibitory activity. Compound D18 presented the most potent inhibitory activity with IC50 values of 13.06 μM against influenza H1N1 subtype. Among the selected compounds, D18 and D41 turned out to be the most potent inhibitors against influenza virus H3N2 subtype (IC50 = 15.00 μM and IC50 = 14.97 μM, respectively). D25 was the most potent compound against influenza B subtype (IC50 = 16.09 μM). In addition, D41 showed low toxicity and greater potency than reference compounds Oseltamivir and Amantadine against N1-H275Y variant in cellular assays. The structure-activity relationship (SAR) analysis showed that introducing 4-CO2H, 4-OH, 3-OCH3-4-OH substituted benzyl methylene can greatly improve the activity of 4-thiazolinones. Further SAR analysis indicated that 4-thiazolinone and ferulic acid fragments are necessary fragments of target compounds for inhibiting NA. Molecular docking was performed to study the interaction between compound D41 and the active site of NA. This study may providing important information for new drug development for anti-influenza virus including mutant influenza virus.
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Mahalapbutr P, Sangkhawasi M, Kammarabutr J, Chamni S, Rungrotmongkol T. Rosmarinic Acid as a Potent Influenza Neuraminidase Inhibitor: In Vitro and In Silico Study. Curr Top Med Chem 2020; 20:2046-2055. [PMID: 31738149 DOI: 10.2174/1568026619666191118110155] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/08/2020] [Accepted: 07/09/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND Neuraminidase (NA), a major glycoprotein found on the surface of the influenza virus, is an important target for the prophylaxis and treatment of influenza virus infections. Recently, several plant-derived polyphenols, especially caffeic acid analogs, have been reported to exert the inhibitory activity against NA. OBJECTIVE Herein, we aimed to investigate the anti-influenza NA activity of caffeic acid and its hydroxycinnamate analogues, rosmarinic acid and salvianolic acid A, in comparison to a known NA inhibitor, oseltamivir. METHODS In vitro MUNANA-based NA inhibitory assay was used to evaluate the inhibitory activity of the three interested hydroxycinnamic compounds towards the influenza NA enzyme. Subsequently, allatom molecular dynamics (MD) simulations and binding free energy calculations were employed to elucidate the structural insights into the protein-ligand complexations. RESULTS Rosmarinic acid showed the highest inhibitory activity against NA with the IC50 of 0.40 μM compared to caffeic acid (IC50 of 0.81 μM) and salvianolic acid A (IC50 of >1 μM). From 100-ns MD simulations, the binding affinity, hot-spot residues, and H-bond formations of rosmarinic acid/NA complex were higher than those of caffeic acid/NA model, in which their molecular complexations was driven mainly by electrostatic attractions and H-bond formations from several charged residues (R118, E119, D151, R152, E227, E277, and R371). Notably, the two hydroxyl groups on both phenyl and phenylacetic rings of rosmarinic acid play a crucial role in stabilizing NA through a strongly formed Hbond( s). CONCLUSION Our findings shed light on the potentiality of rosmarinic acid as a lead compound for further development of a potential influenza NA inhibitor.
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Affiliation(s)
- Panupong Mahalapbutr
- Structural and Computational Biology Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Mattanun Sangkhawasi
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Jirayu Kammarabutr
- Structural and Computational Biology Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Supakarn Chamni
- Natural Products and Nanoparticles Research Unit (NP2), Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Thanyada Rungrotmongkol
- Structural and Computational Biology Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand
- Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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Liu L, Ye J, Xiao M, Yuan K, He M, Hu A, Jia H, Liu A. Synthesis of Novel 1,2,4‐Triazole‐3‐thione Derivatives as Influenza Neuraminidase Inhibitors. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Ling Liu
- College of Chemistry and Chemical EngineeringHunan University Changsha 410082 China
| | - Jiao Ye
- College of Chemistry and Chemical EngineeringHunan University Changsha 410082 China
| | - Mengwu Xiao
- College of Chemistry and Chemical EngineeringHunan University Changsha 410082 China
| | - Keyang Yuan
- College of Chemistry and Chemical EngineeringHunan University Changsha 410082 China
| | - Mei He
- College of Chemistry and Chemical EngineeringHunan University Changsha 410082 China
| | - Aixi Hu
- College of Chemistry and Chemical EngineeringHunan University Changsha 410082 China
| | - Hao Jia
- Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical College Beijing 100050 China
| | - Ailin Liu
- Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical College Beijing 100050 China
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Herrera-España AD, Aguilera-González J, Mena-Rejón GJ, Hernández-Ortega S, Cáceres-Castillo D. Crystal structure and Hirshfeld surface analysis of N-(5-iodo-4-phenyl-thia-zol-2-yl)acetamide. Acta Crystallogr E Crystallogr Commun 2019; 75:717-720. [PMID: 31391952 PMCID: PMC6658950 DOI: 10.1107/s2056989019004791] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 04/09/2019] [Indexed: 11/17/2022]
Abstract
Two crystallographically independent mol-ecules (A and B) are present in the asymmetric unit of the title compound, C11H9IN2OS, which differ mainly in the dihedral angle between the phenyl and thia-zole rings [38.94 (16) and 32.12 (15)°, respectively]. In the crystal, the mol-ecules form ⋯A⋯B⋯A⋯B⋯ chains along the [001] and [010] directions through moderate N-H⋯O hydrogen bonds and C-H⋯π inter-actions, respectively. The overall three-dimensional network is formed by I⋯I and I⋯S inter-actions. Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from H⋯C/C⋯H (26.2%), H⋯H (20.9%), H⋯I/I⋯H (19.4%) and H⋯O/O⋯H (6.8%) inter-actions.
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Affiliation(s)
- Angel D. Herrera-España
- Centro de Investigaciones Químicas, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Chamilpa, Cuernavaca 62209, Morelos, Mexico
| | - Jesús Aguilera-González
- Facultad de Química, Universidad Autónoma de Yucatán, Calle 43 No. 613, Col. Inalámbrica, CP 97069, Mérida, Yucatán, Mexico
| | - Gonzalo J. Mena-Rejón
- Facultad de Química, Universidad Autónoma de Yucatán, Calle 43 No. 613, Col. Inalámbrica, CP 97069, Mérida, Yucatán, Mexico
| | - Simón Hernández-Ortega
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - David Cáceres-Castillo
- Facultad de Química, Universidad Autónoma de Yucatán, Calle 43 No. 613, Col. Inalámbrica, CP 97069, Mérida, Yucatán, Mexico
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Design, synthesis, bioactivity, and DFT calculation of 2-thiazolyl-hydrazone derivatives as influenza neuraminidase inhibitors. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02343-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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10
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New Thiazoline-Tetralin Derivatives and Biological Activity Evaluation. Molecules 2018; 23:molecules23010135. [PMID: 29320423 PMCID: PMC6017121 DOI: 10.3390/molecules23010135] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 01/07/2018] [Accepted: 01/09/2018] [Indexed: 01/15/2023] Open
Abstract
In this study, novel N′-(3-cyclohexyl/phenyl-4-(substituted phenyl)thiazole-2(3H)-ylidene)-2-[(5,6,7,8-tetrahydronaphthalen-2-yl)oxy]acetohydrazide (4a–4k) derivatives were synthesized and their anticancer potency were evaluated on human breast adenocarcinoma cell line (MCF-7), human lung carcinoma cell line (A549) and mouse embryoblast cell line (NIH/3T3) using the MTT method, DNA synthesis inhibition and flow cytometric analysis. Compound 4e bearing 4-methoxyphenyl moiety exhibited the highest antitumor efficiency against MCF-7 cell line with higher DNA synthesis inhibition and apoptotic cell percentages (ealy+late apoptotic cell). On the other hand, compounds 4f, 4g, and 4h bearing 4-bromo, 4-chloro and 4-florophenyl moieties, respectively caused excellent apoptosis levels against A549 cell line when treated with lower concentration even than cisplatin. Anticholinesterase activity of the compounds were also tested, compound 4h showed 49.92% inhibition of acetylcholinesterase (AChE).
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Fang Y, Xiao M, Hu A, Ye J, Lian W, Liu A. Design, Synthesis, and Evaluation of 3-((4-(t-Butyl)-2-(2-benzylidenehydrazinyl)thiazol-5-yl)methyl)quinolin-2(1H)-ones as Neuraminidase Inhibitors. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201500738] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Wu Z, Peng J, Hu A, Ye J, Li G. Design, synthesis and neuraminidase inhibitory activity of N-(5-benzyl-4-(tert-butyl)thiazol-2-yl)benzamides. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1487-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li C, Fang JS, Lian WW, Pang XC, Liu AL, Du GH. In vitro antiviral effects and 3D QSAR study of resveratrol derivatives as potent inhibitors of influenza H1N1 neuraminidase. Chem Biol Drug Des 2014; 85:427-38. [PMID: 25185493 DOI: 10.1111/cbdd.12425] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 07/01/2014] [Accepted: 08/13/2014] [Indexed: 11/28/2022]
Abstract
The anti-influenza virus activities of 50 resveratrol (RV: 3, 5, 4'-trihydroxy-trans-stilbene) derivatives were evaluated using a neuraminidase (NA) activity assay. The results showed that 35 compounds exerted an inhibitory effect on the NA activity of the influenza virus strain A/PR/8/34 (H1N1) with 50% inhibitory concentration (IC50) values ranging from 3.56 to 186.1 μm. Next, the 35 RV derivatives were used to develop 3D quantitative structure-activity relationship (3D QSAR) models for understanding the chemical-biological interactions governing their activities against NA. The comparative molecular field analysis (CoMFA r2=0.973, q2=0.620, qtest2=0.661) and the comparative molecular similarity indices analysis (CoMSIA r2=0.956, q2=0.610, qtest2=0.531) were applied. Afterward, molecular docking was performed to study the molecular interactions between the RV derivatives and NA. Finally, a cytopathic effect (CPE) reduction assay was used to evaluate the antiviral effects of the RV derivatives in vitro. Time-of-addition studies demonstrated that the RV derivatives might have a direct effect on viral particle infectivity. Our results indicate that the RV derivatives are potentially useful antiviral compounds for new drug design and development for influenza treatment.
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Affiliation(s)
- Chao Li
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
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Metwally NH, Abdelrazek FM, Jaafar MT. Synthesis and Antimicrobial Activity of Some Novel Substituted Bis-Pyridone, Pyrazole, and Thiazole Derivatives. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2043] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nadia H. Metwally
- Department of Chemistry, Faculty of Science; Cairo University; Giza Egypt
| | | | - Mohammed T. Jaafar
- Department of Chemistry, Faculty of Science; Cairo University; Giza Egypt
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Li W, Xia L, Hu A, Liu A, Peng J, Tan W. Design and Synthesis of 4-Alkyl-2-amino(acetamino)-6-aryl-1,3-thiazine Derivatives as Influenza Neuraminidase Inhibitors. Arch Pharm (Weinheim) 2013; 346:635-44. [DOI: 10.1002/ardp.201300122] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 06/18/2013] [Accepted: 06/28/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Wan Li
- College of Chemistry and Chemical Engineering; Hunan University; Changsha; China
| | - Lin Xia
- College of Chemistry and Chemical Engineering; Hunan University; Changsha; China
| | - Aixi Hu
- College of Chemistry and Chemical Engineering; Hunan University; Changsha; China
| | - Ailin Liu
- Institute of Materia Medica; Chinese Academy of Medical Sciences and Peking Union Medical College; Beijing; China
| | - Junmei Peng
- College of Chemistry and Chemical Engineering; Hunan University; Changsha; China
| | - Weiqing Tan
- College of Chemistry and Chemical Engineering; Hunan University; Changsha; China
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Karmakar T, Kuang Y, Neamati N, Baruah JB. Cadmium complexes and cocrystals of indium complexes of benzothiazole derivatives and anticancer activities of the cadmium complexes. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.02.068] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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17
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Kandil SS, Yarkandi NH, Jambi SM. Coordination of cobalt(III), nickel(II), copper(II), palladium(II) and platinum(II) with N-ethyl-N′-(4′-methylthiazol-2′-yl)thiourea (HL). J Sulphur Chem 2013. [DOI: 10.1080/17415993.2013.768621] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Samir S. Kandil
- Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Naeema H.M. Yarkandi
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia
| | - Suhair M.S. Jambi
- Chemistry Department, Faculty of Sciences for Girls, King Abdul-Aziz University, Jeddah, Kingdom of Saudi Arabia
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