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Missioui M, Mortada S, Guerrab W, Demirtaş G, Mague JT, Ansar M, El Abbes Faouzi M, Essassi E, Mehdar YT, Aljohani FS, Said MA, Ramli Y. Greener Pastures in Evaluating Antidiabetic Drug for a Quinoxaline Derivative: Synthesis, Characterization, Molecular Docking, in Vitro and HSA/DFT/XRD Studies. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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2
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Abstract
Multifunctionality is a desirable aspect in materials science. Indeed, the development of multifunctional compounds is crucial for sustainable chemistry by saving resources and time. In this sense, 2H-benzo[d]1,2,3-triazole (BTz) is an excellent candidate with promising characteristics, including its ability to self-assemble; its acceptor character, which enables the synthesis of donor-acceptor structures; and its facile modulation using standard chemical methods. Thus, due to its interesting properties, it is possible to produce different derivatives with applications in different fields, as summarized in this article, with the correct substitution at the BTz cores. Optoelectronic or biomedical applications, amongst others, are highlighted.
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3
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Piras S, Corona P, Ibba R, Riu F, Murineddu G, Sanna G, Madeddu S, Delogu I, Loddo R, Carta A. Preliminary Anti-Coxsackie Activity of Novel 1-[4-(5,6-dimethyl(H)- 1H(2H)-benzotriazol-1(2)-yl)phenyl]-3-alkyl(aryl)ureas. Med Chem 2021; 16:677-688. [PMID: 31878859 DOI: 10.2174/1573406416666191226142744] [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: 04/18/2019] [Revised: 10/05/2019] [Accepted: 10/15/2019] [Indexed: 01/29/2023]
Abstract
BACKGROUND Coxsackievirus infections are associated with cases of aseptic meningitis, encephalitis, myocarditis, and some chronic disease. METHODS A series of benzo[d][1,2,3]triazol-1(2)-yl derivatives (here named benzotriazol-1(2)-yl) (4a-i, 5a-h, 6a-e, g, i, j and 7a-f, h-j) were designed, synthesized and in vitro evaluated for cytotoxicity and antiviral activity against two important human enteroviruses (HEVs) members of the Picornaviridae family [Coxsackievirus B 5 (CVB-5) and Poliovirus 1 (Sb-1)]. RESULTS Compounds 4c (CC50 >100 μM; EC50 = 9 μM), 5g (CC50 >100 μM; EC50 = 8 μM), and 6a (CC50 >100 μM; EC50 = 10 μM) were found active against CVB-5. With the aim of evaluating the selectivity of action of this class of compounds, a wide spectrum of RNA (positive- and negativesense), double-stranded (dsRNA) or DNA viruses were also assayed. For none of them, significant antiviral activity was determined. CONCLUSION These results point towards a selective activity against CVB-5, an important human pathogen that causes both acute and chronic diseases in infants, young children, and immunocompromised patients.
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Affiliation(s)
- Sandra Piras
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni, 23, 07100 Sassari, Italy
| | - Paola Corona
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni, 23, 07100 Sassari, Italy
| | - Roberta Ibba
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni, 23, 07100 Sassari, Italy
| | - Federico Riu
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni, 23, 07100 Sassari, Italy
| | - Gabriele Murineddu
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni, 23, 07100 Sassari, Italy
| | - Giuseppina Sanna
- Department of Biomedical Sciences, Section of Microbiology and Virology, University of Cagliari, Cittadella Universitaria, 09042, Monserrato, Italy
| | - Silvia Madeddu
- Department of Biomedical Sciences, Section of Microbiology and Virology, University of Cagliari, Cittadella Universitaria, 09042, Monserrato, Italy
| | - Ilenia Delogu
- Department of Biomedical Sciences, Section of Microbiology and Virology, University of Cagliari, Cittadella Universitaria, 09042, Monserrato, Italy
| | - Roberta Loddo
- Department of Biomedical Sciences, Section of Microbiology and Virology, University of Cagliari, Cittadella Universitaria, 09042, Monserrato, Italy
| | - Antonio Carta
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni, 23, 07100 Sassari, Italy
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Dutta NB, Bori J, Gogoi P, Baishya G. Metal‐, Photocatalyst‐, Light‐ and Electrochemical‐Free C‐3 Trifluoromethylation of Quinoxalin‐2(1
H
)‐ones, Imidazo[1,2‐a]pyridines and 2
H
‐Indazoles. ChemistrySelect 2021. [DOI: 10.1002/slct.202004631] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nibedita Baruah Dutta
- Natural Products Chemistry Group Chemical Science & Technology Division CSIR-North East Institute of Science and Technology Jorhat 785006 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
- Rain Forest Research Institute Jorhat 785001 India
| | - Jugal Bori
- Natural Products Chemistry Group Chemical Science & Technology Division CSIR-North East Institute of Science and Technology Jorhat 785006 India
| | - Pinku Gogoi
- Natural Products Chemistry Group Chemical Science & Technology Division CSIR-North East Institute of Science and Technology Jorhat 785006 India
| | - Gakul Baishya
- Natural Products Chemistry Group Chemical Science & Technology Division CSIR-North East Institute of Science and Technology Jorhat 785006 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad Uttar Pradesh 201002 India
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5
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Inhibition of Enterovirus A71 by a Novel 2-Phenyl-Benzimidazole Derivative. Viruses 2021; 13:v13010058. [PMID: 33406781 PMCID: PMC7823780 DOI: 10.3390/v13010058] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 12/29/2020] [Accepted: 12/29/2020] [Indexed: 02/07/2023] Open
Abstract
Enterovirus A71 (EV-A71) infection has emerged as a significant public health concern at the global level. Epidemic events of EV-A71 have been reported worldwide, and this succession of outbreaks has heightened concern that EV-A71 may become a public health threat. In recent years, widespread A71 enterovirus also occurred in European countries. EV-A71 infection causes hand-foot-mouth disease (HFMD), herpangina, and fever. However, it can sometimes induce a variety of neurological complications, including encephalitis, aseptic meningitis, pulmonary edema, and acute flaccid paralysis. We identified new benzimidazole derivatives and described theirin vitrocytotoxicity and broad-spectrum anti-enterovirus activity. Among them, derivative 2b resulted in interesting activity against EV-A71, and therefore it was selected for further investigations. Compound 2b proved to be able to protect cell monolayers from EV-A71-induced cytopathogenicity, with an EC50 of 3 µM. Moreover, Vero-76 cells resulted in being significantly protected from necrosis and apoptosis when treated with 2b at 20 and 80 µM. Compound 2b reduced viral adsorption to Vero-76 cells, and when evaluated in a time-of-addition assay, the derivative had the highest effect when added during the infection period. Moreover, derivative 2b reduced viral penetration into host cells. Besides, 2b did not affect intestinal monolayers permeability, showing no toxic effects. A detailed insight into the efficacy of compound 2b against EV-A71 showed a dose-dependent reduction in the viral titer, also at low concentrations. Mechanism of action investigations suggested that our derivative can inhibit viral endocytosis by reducing viral attachment to and penetration into host cells. Pharmacokinetic and toxicity predictions validated compound 2b as a good candidate for furtherin vivoassays.
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Corona P, Piras S, Ibba R, Riu F, Murineddu G, Sanna G, Madeddu S, Delogu I, Loddo R, Carta A. Antiviral Activity of Benzotriazole Based Derivatives. THE OPEN MEDICINAL CHEMISTRY JOURNAL 2020. [DOI: 10.2174/1874104502014010083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
For the last thirty years, the benzotriazole scaffold has been the object of our group interest and we have already presented some results on the antiviral activity of our compounds.
Objective:
In this article, we conclude the exploration of N-(4-(R-2H-benzo[d][1,2,3]triazol-2-yl)phenyl)-4-R’-benzamides and 1-(4-(R-2H-benzo[d][1,2,3]triazol-2-yl)phenyl)-3-R’-ureas by synthesizing further modified derivatives, in order to have more elements for SARs evaluation.
Methods:
Here, we reported the synthesis and the antiviral screening results of 38 newly synthesized benzotriazole derivatives against a panel of DNA and RNA viruses. We also analyse SARs in comparing these compounds with previously published benzotriazole analogues, taking stock of the situation.
Results:
Among the newly presented derivatives, compounds 17 and 18 were the most active with EC50 6.9 and 5.5 µM, respectively against Coxsackievirus B5 (CV-B5) and 20.5 and 17.5 µM against Poliovirus (Sb-1).
Conclusion:
we can conclude that N-(4-(2H-benzo[d] [1 - 3] triazol-2-yl)phenyl-R-amide is a good chemical scaffold for the development of new antiviral molecules.
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8
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Ibba R, Piras S, Delogu I, Loddo R, Carta A. Anti-BVDV Activity Evaluation of Naphthoimidazole Derivatives Compared with Parental Imidazoquinoline Compounds. THE OPEN MEDICINAL CHEMISTRY JOURNAL 2020. [DOI: 10.2174/1874104502014010065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Pestivirus genus includes animal pathogens which are involved in economic impact for the livestock industry. Among others, Bovine Viral Diarrhoea Virus (BVDV) establish a persistent infection in cattle causing a long list of symptoms and a high mortality rate. In the last decades, we synthesised and reported a certain number of anti-BVDV compounds.
Methods:
In them, imidazoquinoline derivatives turned out as the most active. Their mechanism of actions has been deeply investigated, BVDV RNA-dependent RNA polymerase (RpRd) resulted as target and the way of binding was predicted in silico through three main H-bond interaction with the target.
The prediction could be confirmed by target or ligand mutation. The first approach has already been performed and published confirming the in silico prediction.
Results:
Here, we present how the ligand chemical modification affects the anti-BVDV activity. The designed compounds were synthesised and tested against BVDV as in silico assay negative control.
Conclusion:
The antiviral results confirmed the predicted mechanism of action, as the newly synthesised compounds resulted not active in the in vitro BVDV infection inhibition.
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Zouitini A, Faizi MSH, Ouzidan Y, Ouazzani Chahdi F, Marrot J, Prim D, Dege N, Mashrai A. Synthesis, crystal structure at 219 K and Hirshfeld surface analyses of 1,4,6-tri-methyl-quinoxaline-2,3(1 H,4 H)-dione monohydrate. Acta Crystallogr E Crystallogr Commun 2020; 76:1296-1301. [PMID: 32844017 PMCID: PMC7405578 DOI: 10.1107/s2056989020009573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/13/2020] [Indexed: 11/25/2022]
Abstract
The asymmetric unit of the title compound, C11H12N2O2·H2O, contains a mol-ecule of 1,4,6-trimethyl-1,4-di-hydro-quinoxaline-2,3-dione and a solvent water mol-ecule. Four atoms of the benzene ring are disordered over two sets of sites in a 0.706 (7):0.294 (7) ratio while the N-bound methyl groups are rotationally disordered with occupancy ratios of 0.78 (4):0.22 (4) and 0.76 (5):0.24 (5). In the crystal, mol-ecules are linked by O-H⋯O and C-H⋯O hydrogen bonds into layers lying parallel to (10). The Hirshfeld surface analysis indicates that the most important contributions to the packing arrangement are due to H⋯H (51.3%) and O⋯H/H⋯O (28.6%) inter-actions. The mol-ecular structure calculated by density functional theory is compared with the experimentally determined mol-ecular structure, and the HOMO-LUMO energy gap has been calculated.
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Affiliation(s)
- Ayman Zouitini
- Laboratoire de Chimie Organique Appliquée, Université Sidi Mohamed Ben Abdallah, Faculté des Sciences et Techniques, BP 2202, Fez, Morocco
| | - Md. Serajul Haque Faizi
- Department of Chemistry, Langat Singh College, B.R.A. Bihar University, Muzaffarpur, Bihar-842001, India
| | - Younes Ouzidan
- Laboratoire de Chimie Physique et Chimie Bio-organique, Faculté des Sciences et Techniques Mohammedia, Université Hassan II, Casablanca, BP 146, 28800, Mohammedia, Morocco
| | - Fouad Ouazzani Chahdi
- Laboratoire de Chimie Organique Appliquée, Université Sidi Mohamed Ben Abdallah, Faculté des Sciences et Techniques, BP 2202, Fez, Morocco
| | - Jérôme Marrot
- Institut Lavoisier de Versailles, UVSQ, CNRS, Université Paris-Saclay, 78035 Versailles, France
| | - Damien Prim
- Institut Lavoisier de Versailles, UVSQ, CNRS, Université Paris-Saclay, 78035 Versailles, France
| | - Necmi Dege
- Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, Samsun, 55200, Turkey
| | - Ashraf Mashrai
- Department of Pharmacy, University of Science and Technology, Ibb Branch, Ibb, Yemen
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5,6-Dichloro-2-phenyl-benzotriazoles: New Potent Inhibitors of Orthohantavirus. Viruses 2020; 12:v12010122. [PMID: 31968537 PMCID: PMC7019903 DOI: 10.3390/v12010122] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 01/11/2020] [Accepted: 01/15/2020] [Indexed: 02/07/2023] Open
Abstract
Orthohantaviruses, previously known as hantaviruses (family Hantaviridae, order Bunyavirales), are emerging zoonoses hosted by different rodent and insectivore species. Orthohantaviruses are transmitted by aerosolized excreta (urine, saliva and feces) of their reservoir hosts. When transmitted to humans, they cause hemorrhagic fever with renal syndrome (HFRS) in Asia and Europe and hantavirus (cardio) pulmonary syndrome (HPS) in the Americas. Clinical studies have shown that early treatments of HFRS patients with ribavirin (RBV) improve prognosis. Nevertheless, there is the need for urgent development of specific antiviral drugs. In the search for new RNA virus inhibitors, we recently identified a series of variously substituted 5,6-dichloro-1(2)-phenyl-1(2)H-benzo[d][1,2,3]triazole derivatives active against the human respiratory syncytial virus (HRSV). Interestingly, several 2-phenyl-benzotriazoles resulted in fairly potent inhibitors of the Hantaan virus in a chemiluminescence focus reduction assay (C-FRA) showing an EC50 = 4–5 µM, ten-fold more active than ribavirin. Currently, there are no FDA approved drugs for the treatment of orthohantavirus infections. Antiviral activities and cytotoxicity profiles suggest that 5,6-dichloro-1(2)-phenyl-1(2)H-benzo[d][1,2,3]triazoles could be promising candidates for further investigation as a potential treatment of hantaviral diseases.
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11
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Gao Y, Zhao L, Xiang T, Li P, Wang L. Photoinitiated decarboxylative C3-difluoroarylmethylation of quinoxalin-2(1H)-ones with potassium 2,2-difluoro-2-arylacetates in water. RSC Adv 2020; 10:10559-10568. [PMID: 35492892 PMCID: PMC9050393 DOI: 10.1039/d0ra02059a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/05/2020] [Indexed: 12/19/2022] Open
Abstract
An efficient visible-light-induced decarboxylative C3-difluoroarylmethylation of quinoxalin-2(1H)-one with potassium 2,2-difluoro-2-arylacetate in water at room temperature was developed.
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Affiliation(s)
- Yanhui Gao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications
- Ministry of Education
- Department of Chemistry
- Huaibei Normal University
- Huaibei
| | - Lulu Zhao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications
- Ministry of Education
- Department of Chemistry
- Huaibei Normal University
- Huaibei
| | - Tianyi Xiang
- College of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Pinhua Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications
- Ministry of Education
- Department of Chemistry
- Huaibei Normal University
- Huaibei
| | - Lei Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications
- Ministry of Education
- Department of Chemistry
- Huaibei Normal University
- Huaibei
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12
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Sekhar Dutta H, Ahmad A, Khan AA, Kumar M, Raziullah, Koley D. Metal Free Benzylation and Alkylation of Quinoxalin‐2(1
H
)‐ones with Alkenes Triggered by Sulfonyl Radical Generated from Sulfinic Acids. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901212] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Ashfaq Ahmad
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Lucknow 226031 India
| | - Afsar Ali Khan
- Academy of Scientific and Innovative Research New Delhi 110001 India
| | - Mohit Kumar
- Academy of Scientific and Innovative Research New Delhi 110001 India
| | - Raziullah
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Lucknow 226031 India
| | - Dipankar Koley
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi 110001 India
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13
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Piras S, Sanna G, Carta A, Corona P, Ibba R, Loddo R, Madeddu S, Caria P, Aulic S, Laurini E, Fermeglia M, Pricl S. Dichloro-Phenyl-Benzotriazoles: A New Selective Class of Human Respiratory Syncytial Virus Entry Inhibitors. Front Chem 2019; 7:247. [PMID: 31041309 PMCID: PMC6476926 DOI: 10.3389/fchem.2019.00247] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 03/27/2019] [Indexed: 12/14/2022] Open
Abstract
Human Respiratory Syncytial Virus (RSV) is the primary cause of bronchopneumonia in infants and children worldwide. Clinical studies have shown that early treatments of RSV patients with ribavirin improve prognosis, even if the use of this drug is limited due to myelosuppression and toxicity effects. Furthermore, effective vaccines to prevent RSV infection are currently unavailable. Thus, the development of highly effective and specific antiviral drugs for pre-exposure prophylaxis and/or treatment of RSV infections is a compelling need. In the quest of new RSV inhibitors, in this work we evaluated the antiviral activity of a series of variously substituted 5,6-dichloro-1-phenyl-1(2)H-benzo[d][1,2,3]triazole derivatives in cell-based assays. Several 1- and 2-phenyl-benzotriazoles resulted fairly potent (μM concentrations) inhibitors of RSV infection in plaque reduction assays, accompanied by low cytotoxicity in human highly dividing T lymphoid-derived cells and primary cell lines. Contextually, no inhibitory effects were observed against other RNA or DNA viruses assayed, suggesting specific activity against RSV. Further results revealed that the lead compound 10d was active during the early phase of the RSV infection cycle. To understand whether 10d interfered with virus attachment to target cells or virus-cell fusion events, inhibitory activity tests against the RSV mutant strain B1 cp-52—expressing only the F envelope glycoprotein—and a plasmid-based reporter assay that quantifies the bioactivity of viral entry were also performed. The overall biological results, in conjunction with in silico modeling studies, supported the conclusion that the RSV fusion process could be the target of this new series of compounds.
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Affiliation(s)
- Sandra Piras
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Giuseppina Sanna
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Antonio Carta
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Paola Corona
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Roberta Ibba
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Roberta Loddo
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Silvia Madeddu
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Paola Caria
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Suzana Aulic
- Molecular Biology and Nanotechnology Laboratory (MolBNL@Units), DEA, University of Trieste, Trieste, Italy
| | - Erik Laurini
- Molecular Biology and Nanotechnology Laboratory (MolBNL@Units), DEA, University of Trieste, Trieste, Italy
| | - Maurizio Fermeglia
- Molecular Biology and Nanotechnology Laboratory (MolBNL@Units), DEA, University of Trieste, Trieste, Italy
| | - Sabrina Pricl
- Molecular Biology and Nanotechnology Laboratory (MolBNL@Units), DEA, University of Trieste, Trieste, Italy
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14
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Paul S, Khanal HD, Clinton CD, Kim SH, Lee YR. Pd(TFA)2-catalyzed direct arylation of quinoxalinones with arenes. Org Chem Front 2019. [DOI: 10.1039/c8qo01250d] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Pd(TFA)2-catalyzed cross-dehydrogenative coupling reaction for the direct C-3 arylation of quinoxalin-2-ones with arenes is described.
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Affiliation(s)
- Sanjay Paul
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749
- Republic of Korea
- Department of Chemistry
| | - Hari Datta Khanal
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749
- Republic of Korea
| | - Chayan Dhar Clinton
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749
- Republic of Korea
| | - Sung Hong Kim
- Analysis Research Division
- Daegu Center
- Korea Basic Science Institute
- Daegu 41566
- Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749
- Republic of Korea
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15
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Abad N, Ramli Y, Hökelek T, Sebbar NK, Mague JT, Essassi EM. Crystal structure and Hirshfeld surface analysis of ethyl 2-{4-[(3-methyl-2-oxo-1,2-di-hydro-quinoxalin-1-yl)meth-yl]-1 H-1,2,3-triazol-1-yl}acetate. Acta Crystallogr E Crystallogr Commun 2018; 74:1648-1652. [PMID: 30443399 PMCID: PMC6218907 DOI: 10.1107/s2056989018014561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 10/15/2018] [Indexed: 11/21/2022]
Abstract
The mol-ecule of the title compound, C16H17N5O3, is build up from two fused six-membered rings linked to a 1,2,3-triazole ring, which is attached to an ethyl azido-acetate group. The di-hydro-qinoxalinone portion is planar to within 0.0512 (12) Å and is oriented at a dihedral angle of 87.83 (5)° with respect to the pendant triazole ring. In the crystal, a combination of inter-molecular C-H⋯O and C-H⋯N hydrogen bonds together with slipped π-stacking [centroid-centroid distance = 3.7772 (12) Å] and C-H⋯π (ring) inter-actions lead to the formation of chains extending along the c-axis direction. Additional C-H⋯O hydrogen bonds link these chains into layers parallel to the bc plane and the layers are tied together by complementary π-stacking [centroid-centroid distance = 3.5444 (12) Å] inter-actions. The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H⋯H (44.5%), H⋯O/O⋯H (18.8%), H⋯N/N⋯H (17.0%) and H⋯C/C⋯H (10.4%) inter-actions.
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Affiliation(s)
- Nadeem Abad
- Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco
| | - Youssef Ramli
- Laboratory of Medicinal Chemistry, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco
| | - Tuncer Hökelek
- Department of Physics, Hacettepe University, 06800 Beytepe, Ankara, Turkey
| | - Nada Kheira Sebbar
- Laboratoire de Chimie Bioorganique Appliquée, Faculté des Sciences, Université Ibn Zohr, Agadir, Morocco
| | - Joel T. Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA
| | - El Mokhtar Essassi
- Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétence Pharmacochimie, Av. Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V, Rabat, Morocco
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17
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Abad N, Sebhaoui J, El Bakri Y, Ramli Y, Essassi EM, Mague JT. Ethyl 2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetate. IUCRDATA 2018. [DOI: 10.1107/s2414314618005965] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the title compound, C12H14N2O3, the conformation of the ester substituent is partially determined by an intramolecular N—H...O hydrogen bond. The crystal packing consists of layers parallel to (-112) held together by N—H...O and C—H...O hydrogen bonds. The CH/NH portion of the heterocyclic ring is disordered over two sites in a 0.930 (5):0.070 (5) ratio with the disorder also extending to the O atom involved in the intramolecular N—H...O hydrogen bond.
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Petronijević J, Janković N, Stanojković TP, Joksimović N, Grozdanić NĐ, Vraneš M, Tot A, Bugarčić Z. Biological evaluation of selected 3,4-dihydro-2(1H
)-quinoxalinones and 3,4-dihydro-1,4-benzoxazin-2-ones: Molecular docking study. Arch Pharm (Weinheim) 2018; 351:e1700308. [DOI: 10.1002/ardp.201700308] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 03/15/2018] [Accepted: 03/19/2018] [Indexed: 12/28/2022]
Affiliation(s)
| | - Nenad Janković
- Department of Chemistry; University of Kragujevac; Kragujevac Serbia
| | | | - Nenad Joksimović
- Department of Chemistry; University of Kragujevac; Kragujevac Serbia
| | | | - Milan Vraneš
- Department of Chemistry, Biochemistry and Environmental Protection; University of Novi Sad; Novi Sad Serbia
| | - Aleksandar Tot
- Department of Chemistry, Biochemistry and Environmental Protection; University of Novi Sad; Novi Sad Serbia
| | - Zorica Bugarčić
- Department of Chemistry; University of Kragujevac; Kragujevac Serbia
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19
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Zouitini A, Kandri Rodi Y, Ouazzani Chahdi F, Jasinski JP, Kaur M, Essassi EM. 6-Methyl-1,4-bis[(pyridin-2-yl)methyl]quinoxaline-2,3(1 H,4 H)-dione. IUCRDATA 2017. [DOI: 10.1107/s2414314617016510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
The title compound, C21H18N4O2, crystallizes with one independent molecule in the asymmetric unit. The 6-methylquinoxaline-2,3(1H,4H)-dione unit is essentially planar. The dihedral angles between the mean plane of the 6-methylquinoxaline-2,3(1H,4H)-dione ring and its pendant pyridin-2-yl rings are 85.1 (3) and 73.8 (4)°. The pyridin-2-yl rings are inclined pointing away from the 6-methylquinoxaline-2,3(1H,4H)-dione ring system. In the crystal, molecules are linked by weak C—H...O interactions, forming a three-dimensional network structure.
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20
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Zouitini A, Kandri Rodi Y, Ouzidan Y, Jasinski JP, Kaur M, Essassi EM. 2,3-Bis(benzylthio)-6-methylquinoxaline. IUCRDATA 2017. [DOI: 10.1107/s2414314617012585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
In the title compound, C23H20N2S2, the mean planes of the phenyl rings are twisted with respect to the mean plane of the quinoxaline ring system by 73.8 (8) and 72.2 (8)°. A weak intramolecular C—H...N interactions is observed. The methyl group attached to the quinoxaline ring system is disordered over two sets of sites on the benzene ring having occupancies 0.531 (7) and 0.469 (7), respectively. One of the phenyl rings is disordered over two sets of sites having occupancies 0.649 (7) and 0.351 (10), respectively. In the crystal, π–π stacking interactions occur.
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21
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Loddo R, Novelli F, Sparatore A, Tasso B, Tonelli M, Boido V, Sparatore F, Collu G, Delogu I, Giliberti G, La Colla P. Antiviral activity of benzotriazole derivatives. 5-[4-(Benzotriazol-2-yl)phenoxy]-2,2-dimethylpentanoic acids potently and selectively inhibit Coxsackie Virus B5. Bioorg Med Chem 2015; 23:7024-34. [PMID: 26443549 DOI: 10.1016/j.bmc.2015.09.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/17/2015] [Accepted: 09/20/2015] [Indexed: 12/21/2022]
Abstract
A library of 64 benzotriazole derivatives (17 of which were [4-(benzotriazol-2-yl)phenoxy]alkanoic acids) were screened for antiviral activity against a panel of twelve DNA and RNA viruses. Twenty-six compounds (12 of which were [4-(benzotriazol-2-yl)phenoxy]alkanoic acids) displayed activity against one or more viruses. CVB-5, RSV, BVDV, Sb-1 and YFV were, in decreasing order, the more frequently and effectively affected viruses; DENV-2, WNV, HIV-1 and Reo-1 were only occasionally and modestly affected, while the remaining viruses were not affected by any of the tested compounds. Worth of note were compounds 33 and 35; the former for the activity against Sb-1 (EC50=7 μM) and the latter for the large spectrum of activity including six viruses with a mean EC50=12 μM. Even more interesting were the alkanoic acids 45-48 and 50-57 for their activity against RSV and/or CVB-5. In particular, compound 56 displayed a potent and selective activity against CVB-5 with EC50=0.15 μM and SI=100, thus representing a valuable hit compound for the development of antiviral agents for the treatment of human pathologies related to this virus.
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Affiliation(s)
- Roberta Loddo
- Dipartimento di Scienze Biomediche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato (CA), Italy.
| | - Federica Novelli
- Dipartimento di Farmacia, Università degli Studi di Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
| | - Anna Sparatore
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, 20133 Milano, Italy
| | - Bruno Tasso
- Dipartimento di Farmacia, Università degli Studi di Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
| | - Michele Tonelli
- Dipartimento di Farmacia, Università degli Studi di Genova, Viale Benedetto XV, 3, 16132 Genova, Italy.
| | - Vito Boido
- Dipartimento di Farmacia, Università degli Studi di Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
| | - Fabio Sparatore
- Dipartimento di Farmacia, Università degli Studi di Genova, Viale Benedetto XV, 3, 16132 Genova, Italy
| | - Gabriella Collu
- Dipartimento di Scienze Biomediche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato (CA), Italy
| | - Ilenia Delogu
- Dipartimento di Scienze Biomediche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato (CA), Italy
| | - Gabriele Giliberti
- Dipartimento di Scienze Biomediche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato (CA), Italy
| | - Paolo La Colla
- Dipartimento di Scienze Biomediche, Università degli Studi di Cagliari, Cittadella Universitaria, 09042 Monserrato (CA), Italy
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22
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Briguglio I, Piras S, Corona P, Pirisi MA, Burrai L, Boatto G, Gavini E, Rassu G. Synthesis of 2-(Quinoxalin-2-ylamino-benzotriazolyl) Pentanedioic Derivatives as Potential Anti-Folate Agents. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2474] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- I. Briguglio
- Department of Chemistry and Pharmacy; University of Sassari; Via Muroni 23a 07100 Sassari Italy
| | - S. Piras
- Department of Chemistry and Pharmacy; University of Sassari; Via Muroni 23a 07100 Sassari Italy
| | - P. Corona
- Department of Chemistry and Pharmacy; University of Sassari; Via Muroni 23a 07100 Sassari Italy
| | - M. A. Pirisi
- Department of Chemistry and Pharmacy; University of Sassari; Via Muroni 23a 07100 Sassari Italy
| | - L. Burrai
- Department of Chemistry and Pharmacy; University of Sassari; Via Muroni 23a 07100 Sassari Italy
| | - G. Boatto
- Department of Chemistry and Pharmacy; University of Sassari; Via Muroni 23a 07100 Sassari Italy
| | - E. Gavini
- Department of Chemistry and Pharmacy; University of Sassari; Via Muroni 23a 07100 Sassari Italy
| | - G. Rassu
- Department of Chemistry and Pharmacy; University of Sassari; Via Muroni 23a 07100 Sassari Italy
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23
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Briguglio I, Piras S, Corona P, Gavini E, Nieddu M, Boatto G, Carta A. Benzotriazole: An overview on its versatile biological behavior. Eur J Med Chem 2015; 97:612-48. [PMID: 25293580 PMCID: PMC7115563 DOI: 10.1016/j.ejmech.2014.09.089] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 09/25/2014] [Accepted: 09/28/2014] [Indexed: 12/13/2022]
Abstract
Discovered in late 1960, azoles are heterocyclic compounds class which constitute the largest group of available antifungal drugs. Particularly, the imidazole ring is the chemical component that confers activity to azoles. Triazoles are obtained by a slight modification of this ring and similar or improved activities as well as less adverse effects are reported for triazole derivatives. Consequently, it is not surprising that benzimidazole/benzotriazole derivatives have been found to be biologically active. Since benzimidazole has been widely investigated, this review is focused on defining the place of benzotriazole derivatives in biomedical research, highlighting their versatile biological properties, the mode of action and Structure Activity Relationship (SAR) studies for a variety of antimicrobial, antiparasitic, and even antitumor, choleretic, cholesterol-lowering agents.
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Affiliation(s)
- I Briguglio
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni 23/A, 07100 Sassari, Italy
| | - S Piras
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni 23/A, 07100 Sassari, Italy
| | - P Corona
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni 23/A, 07100 Sassari, Italy
| | - E Gavini
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni 23/A, 07100 Sassari, Italy
| | - M Nieddu
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni 23/A, 07100 Sassari, Italy
| | - G Boatto
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni 23/A, 07100 Sassari, Italy
| | - A Carta
- Department of Chemistry and Pharmacy, University of Sassari, Via Muroni 23/A, 07100 Sassari, Italy.
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24
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Synthesis and antiviral activity of new phenylimidazopyridines and N-benzylidenequinolinamines derived by molecular simplification of phenylimidazo[4,5-g]quinolines. Eur J Med Chem 2014; 84:8-16. [DOI: 10.1016/j.ejmech.2014.07.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 06/09/2014] [Accepted: 07/03/2014] [Indexed: 02/03/2023]
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25
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Weber F, Brune S, Korpis K, Bednarski PJ, Laurini E, Dal Col V, Pricl S, Schepmann D, Wünsch B. Synthesis, Pharmacological Evaluation, and σ1 Receptor Interaction Analysis of Hydroxyethyl Substituted Piperazines. J Med Chem 2014; 57:2884-94. [DOI: 10.1021/jm401707t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Frauke Weber
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Stefanie Brune
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Katharina Korpis
- Institute
of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, University of Greifswald, F.-L.-Jahn-Straße 17, 17487 Greifswald, Germany
| | - Patrick J. Bednarski
- Institute
of Pharmacy, Department of Pharmaceutical and Medicinal Chemistry, University of Greifswald, F.-L.-Jahn-Straße 17, 17487 Greifswald, Germany
| | - Erik Laurini
- Molecular
Simulations Engineering (MOSE) Laboratory, Department of Engineering
and Architecture (DEA), University of Trieste, Via Valerio 6, 34127 Trieste, Italy
| | - Valentina Dal Col
- Molecular
Simulations Engineering (MOSE) Laboratory, Department of Engineering
and Architecture (DEA), University of Trieste, Via Valerio 6, 34127 Trieste, Italy
| | - Sabrina Pricl
- Molecular
Simulations Engineering (MOSE) Laboratory, Department of Engineering
and Architecture (DEA), University of Trieste, Via Valerio 6, 34127 Trieste, Italy
- National
Interuniversity Consortium for Material Science and Technology (INSTM),
Research Unit MOSE-DEA, University of Trieste, Via Valerio 6, 32127 Trieste, Italy
| | - Dirk Schepmann
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
| | - Bernhard Wünsch
- Institute
of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany
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26
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Amanpour T, Bazgir A, Ardekani AM, Ghahremanzadeh R. Pseudo five-component synthesis of 5-phenyldihydrospiro[diindenopyridine-indenoquinoxaline]dione derivatives via a one-pot condensation reaction. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-013-1118-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Rossi D, Pedrali A, Gaggeri R, Marra A, Pignataro L, Laurini E, Dal Col V, Fermeglia M, Pricl S, Schepmann D, Wünsch B, Peviani M, Curti D, Collina S. Chemical, Pharmacological, and in vitro Metabolic Stability Studies on Enantiomerically Pure RC‐33 Compounds: Promising Neuroprotective Agents Acting as σ
1
Receptor Agonists. ChemMedChem 2013; 8:1514-27. [DOI: 10.1002/cmdc.201300218] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Indexed: 12/22/2022]
Affiliation(s)
- Daniela Rossi
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia (Italy)
| | - Alice Pedrali
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia (Italy)
| | - Raffaella Gaggeri
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia (Italy)
| | - Annamaria Marra
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia (Italy)
| | - Luca Pignataro
- Dipartimento di Chimica, Università degli Studi di Milano, Istituto di Scienze e Tecnologie Molecolari (ISTM) del CNR, Via Golgi 19, 20133 Milan (Italy)
| | - Erik Laurini
- MOSE‐DEA, University of Trieste, Via Valerio 10, 34127 Trieste (Italy)
| | - Valentina Dal Col
- MOSE‐DEA, University of Trieste, Via Valerio 10, 34127 Trieste (Italy)
| | | | - Sabrina Pricl
- MOSE‐DEA, University of Trieste, Via Valerio 10, 34127 Trieste (Italy)
- National Interuniversity Consortium for Material Science and Technology (INSTM), Research Unit MOSE‐DEA, University of Trieste, Trieste (Italy)
| | - Dirk Schepmann
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149 Münster (Germany)
| | - Bernhard Wünsch
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Correnstrasse 48, 48149 Münster (Germany)
| | - Marco Peviani
- Department of Biology and Biotechnology “L. Spallanzani”, Laboratory of Cellular and Molecular Neuropharmacology, University of Pavia, Via Ferrata 9, 27100 Pavia (Italy)
| | - Daniela Curti
- Department of Biology and Biotechnology “L. Spallanzani”, Laboratory of Cellular and Molecular Neuropharmacology, University of Pavia, Via Ferrata 9, 27100 Pavia (Italy)
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia (Italy)
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28
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Rossi D, Marra A, Picconi P, Serra M, Catenacci L, Sorrenti M, Laurini E, Fermeglia M, Pricl S, Brambilla S, Almirante N, Peviani M, Curti D, Collina S. Identification of RC-33 as a potent and selective σ1 receptor agonist potentiating NGF-induced neurite outgrowth in PC12 cells. Part 2: g-scale synthesis, physicochemical characterization and in vitro metabolic stability. Bioorg Med Chem 2013; 21:2577-86. [PMID: 23498917 DOI: 10.1016/j.bmc.2013.02.029] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 02/14/2013] [Indexed: 11/18/2022]
Abstract
Strong pharmacological evidences indicate that σ1 receptors are implicated in the pathophysiology of all major CNS disorders. In the last years our research group has conducted extensive studies aimed at discovering novel σ1 ligands and we recently selected (R/S)-RC-33 as a novel potent and selective σ1 receptor agonist. As continuation of our work in this field, here we report our efforts in the development of this new σ1 receptor agonist. Initially, we investigated the binding of (R) and (S) enantiomers of RC-33 to the σ1 receptor by in silico experiments. The close values of the predicted affinity of (R)-RC-33 and (S)-RC-33 for the protein evidenced the non-stereoselective binding of RC-33 to the σ1 receptor; this, in turn, supported further development and characterization of RC-33 in its racemic form. Subsequently, we set-up a scaled-up, optimized synthesis of (R/S)-RC-33 along with some compound characterization data (e.g., solubility in different media and solid state characterization by thermal analysis techniques). Finally, metabolic studies of RC-33 in different biological matrices (e.g., plasma, blood, and hepatic S9 fraction) of different species (e.g., rat, mouse, dog, and human) were performed. (R/S)-RC-33 is generally stable in all examined biological matrices, with the only exception of rat and human liver S9 fractions in the presence of NADPH. In such conditions, the compound is subjected to a relevant oxidative metabolism, with a degradation of approximately 65% in rat and 69% in human. Taken together, our results demonstrated that (R/S)-RC-33 is a highly potent, selective, metabolically stable σ1 agonist, a promising novel neuroprotective drug candidate.
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Affiliation(s)
- Daniela Rossi
- Medicinal Chemistry Laboratory, Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section (MCPTS), University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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29
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Meyer C, Schepmann D, Yanagisawa S, Yamaguchi J, Dal Col V, Laurini E, Itami K, Pricl S, Wünsch B. Pd-catalyzed direct C-H bond functionalization of spirocyclic σ1 ligands: generation of a pharmacophore model and analysis of the reverse binding mode by docking into a 3D homology model of the σ1 receptor. J Med Chem 2012; 55:8047-65. [PMID: 22913577 DOI: 10.1021/jm300894h] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
To explore the hydrophobic binding region of the σ(1) receptor protein, regioisomeric spirocyclic thiophenes 9-11 were developed as versatile building blocks. Regioselective α- and β-arylation using the catalyst systems PdCl(2)/bipy/Ag(2)CO(3) and PdCl(2)/P[OCH(CF(3))(2)](3)/Ag(2)CO(3) allowed the introduction of various aryl moieties at different positions in the last step of the synthesis. The increasing σ(1) affinity in the order 4 < 5/6 < 7/8 indicates that the positions of the additional aryl moiety and the S atom in the spirocyclic thiophene systems control the σ(1) affinity. The main features of the pharmacophore model developed for this class of σ(1) ligands are a positive ionizable group, a H-bond acceptor group, two hydrophobic moieties, and one hydrophobic aromatic group. Docking of the ligands into a σ(1) 3D homology model via molecular mechanics/Poisson-Boltzmann surface area calculations led to a very good correlation between the experimentally determined and estimated free energy of receptor binding. These calculations support the hypothesis of a reverse binding mode of ligands bearing the aryl moiety at the "top" (compounds 2, 3, 7, and 8) and "left" (compounds 4, 5, and 6) positions, respectively.
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Affiliation(s)
- Christina Meyer
- Institut für Pharmazeutische und Medizinische Chemie der Westfälischen Wilhelms-Universität Münster, Hittorfstrasse 58-62, D-48149 Münster, Germany
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30
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31
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Dubey A, Srivastava S, Srivastava S. Conventional and microwave assisted synthesis of 2-oxo-4-substituted aryl-azetidine derivatives of benzotriazole: A new class of biological compounds. Bioorg Med Chem Lett 2011; 21:569-73. [PMID: 21130647 DOI: 10.1016/j.bmcl.2010.10.057] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 09/22/2010] [Accepted: 10/13/2010] [Indexed: 11/24/2022]
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32
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Briguglio I, Piras S, Corona P, Carta A. Inhibition of RNA Helicases of ssRNA(+) Virus Belonging to Flaviviridae, Coronaviridae and Picornaviridae Families. INTERNATIONAL JOURNAL OF MEDICINAL CHEMISTRY 2010; 2011:213135. [PMID: 27516903 PMCID: PMC4970650 DOI: 10.1155/2011/213135] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 10/03/2010] [Accepted: 10/25/2010] [Indexed: 01/13/2023]
Abstract
Many viral pathogens encode the motor proteins named RNA helicases which display various functions in genome replication. General strategies to design specific and selective drugs targeting helicase for the treatment of viral infections could act via one or more of the following mechanisms: inhibition of the NTPase activity, by interferences with ATP binding and therefore by limiting the energy required for the unwinding and translocation, or by allosteric mechanism and therefore by stabilizing the conformation of the enzyme in low helicase activity state; inhibition of nucleic acids binding to the helicase; inhibition of coupling of ATP hydrolysis to unwinding; inhibition of unwinding by sterically blocking helicase translocation. Recently, by in vitro screening studies, it has been reported that several benzotriazole, imidazole, imidazodiazepine, phenothiazine, quinoline, anthracycline, triphenylmethane, tropolone, pyrrole, acridone, small peptide, and Bananin derivatives are endowed with helicase inhibition of pathogen viruses belonging to Flaviviridae, Coronaviridae, and Picornaviridae families.
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Affiliation(s)
- Irene Briguglio
- Department of Medicinal and Toxicological Chemistry, University of Sassari, Via Muroni 23/a, 07100 Sassari, Italy
| | - Sandra Piras
- Department of Medicinal and Toxicological Chemistry, University of Sassari, Via Muroni 23/a, 07100 Sassari, Italy
| | - Paola Corona
- Department of Medicinal and Toxicological Chemistry, University of Sassari, Via Muroni 23/a, 07100 Sassari, Italy
| | - Antonio Carta
- Department of Medicinal and Toxicological Chemistry, University of Sassari, Via Muroni 23/a, 07100 Sassari, Italy
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33
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Hamdy NA, Gamal-Eldeen AM, Abdel-Aziz HA, Fakhr IM. Modulation of carcinogen metabolizing enzymes by new fused heterocycles pendant to 5,6,7,8-tetrahydronaphthalene derivatives. Eur J Med Chem 2010; 45:463-70. [DOI: 10.1016/j.ejmech.2009.10.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2009] [Accepted: 10/15/2009] [Indexed: 10/20/2022]
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34
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Posocco P, Fermeglia M, Pricl S. Morphology prediction of block copolymers for drug delivery by mesoscale simulations. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01301c] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Scocchi G, Posocco P, Handgraaf JW, Fraaije J, Fermeglia M, Pricl S. A Complete Multiscale Modelling Approach for Polymer-Clay Nanocomposites. Chemistry 2009; 15:7586-92. [DOI: 10.1002/chem.200900995] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Sampath A, Padmanabhan R. Molecular targets for flavivirus drug discovery. Antiviral Res 2008; 81:6-15. [PMID: 18796313 DOI: 10.1016/j.antiviral.2008.08.004] [Citation(s) in RCA: 187] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2008] [Revised: 08/18/2008] [Accepted: 08/21/2008] [Indexed: 02/07/2023]
Abstract
Flaviviruses are a major cause of infectious disease in humans. Dengue virus causes an estimated 50 million cases of febrile illness each year, including an increasing number of cases of hemorrhagic fever. West Nile virus, which recently spread from the Mediterranean basin to the Western Hemisphere, now causes thousands of sporadic cases of encephalitis annually. Despite the existence of licensed vaccines, yellow fever, Japanese encephalitis and tick-borne encephalitis also claim many thousands of victims each year across their vast endemic areas. Antiviral therapy could potentially reduce morbidity and mortality from flavivirus infections, but no effective drugs are currently available. This article introduces a collection of papers in Antiviral Research on molecular targets for flavivirus antiviral drug design and murine models of dengue virus disease that aims to encourage drug development efforts. After reviewing the flavivirus replication cycle, we discuss the envelope glycoprotein, NS3 protease, NS3 helicase, NS5 methyltransferase and NS5 RNA-dependent RNA polymerase as potential drug targets, with special attention being given to the viral protease. The other viral proteins are the subject of individual articles in the journal. Together, these papers highlight current status of drug discovery efforts for flavivirus diseases and suggest promising areas for further research.
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Affiliation(s)
- Aruna Sampath
- National Center for Natural Product Research, Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
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