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Barth M, Kleiner I, Nguyen HVL. Coupled internal rotations and 14N quadrupole hyperfine structure of 2,4-dimethylpyrrole investigated by microwave spectroscopy and quantum chemistry. J Chem Phys 2024; 160:244303. [PMID: 38912676 DOI: 10.1063/5.0213319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/31/2024] [Indexed: 06/25/2024] Open
Abstract
The microwave spectrum of 2,4-dimethylpyrrole was investigated using a Fourier-transform microwave spectrometer in a supersonic expansion. Torsional splittings arising from two inequivalent methyl internal rotors in combination with hyperfine splittings due to the nuclear quadrupole coupling of the 14N nucleus were observed. The experiments were accompanied by quantum chemical calculations. A total of 1561 rotational lines were assigned and fitted in global fits using the programs XIAM and BELGI-Cs-2Tops-hyperfine, both achieved the measurement accuracy of 4 kHz. Local separate fits were also performed to verify the correctness of the assignment. Accurate experimental molecular and internal rotation parameters could be deduced and compared to the calculated ones. The barrier to internal rotation of the 2-methyl rotor was determined to be 277.830(26) cm-1, essentially the same as the value of about 280 cm-1 found for 2-methylpyrrole but lower than the value of 317 cm-1 found for 2,5-dimethylpyrrole. The torsional barrier value of the 4-methyl rotor is 262.210(27) cm-1, slightly higher than the value of 246 cm-1 found for 3-methylpyrrole. Benchmarking the rotational constants for 2,4- and 2,5-dimethylpyrrole revealed that the MP2/6-31G(d,p) level could be helpful to guide the assignment of microwave spectra of pyrrole derivatives.
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Affiliation(s)
- Mike Barth
- Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, F-94010 Créteil, France
| | - Isabelle Kleiner
- Université Paris Cité and Univ Paris Est Creteil, CNRS, LISA, F-75013 Paris, France
| | - Ha Vinh Lam Nguyen
- Univ Paris Est Creteil and Université Paris Cité, CNRS, LISA, F-94010 Créteil, France
- Institut Universitaire de France (IUF), 1 rue Descartes, F-75231 Paris, France
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2
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Atmaca H, Ilhan S, Korkmaz E, Zora M. Endoplasmic Reticulum Stress-Induced Apoptotic Effects of Novel 1-Pyrroline (3,4-Dihydro-2H-pyrrole) Derivatives on Breast Cancer Cells. Chem Biodivers 2022; 19:e202200123. [PMID: 35785434 DOI: 10.1002/cbdv.202200123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/17/2022] [Indexed: 11/11/2022]
Abstract
Heterocyclic compounds have emerged as promising and appealing scaffolds for developing effective antitumor agents. Here, the effects of synthesized 24 different 1-pyrroline derivatives (PDs) containing substituted aryl sulfide moiety were investigated on human breast cancer cell lines. The viability of cells was assessed via MTT assay. Reactive oxygen species (ROS) generation was analyzed via fluorescent dye CM-H2DCFDA. Apoptotic cells were determined via flow cytometry. Endoplasmic reticulum (ER) stress-associated protein levels were analyzed via western blot analysis. Four of the PDs (PD-12, -14, -16 and -17) had great cytotoxic selectivity against breast cancer cells. Apoptotic cell death was induced by PDs via the generation of ROS. PDs significantly increased the GRP78, p-PEAK, p-eIF2α, and CHOP protein levels indicating ER stress in breast cancer cells. These results imply that newly synthesized PDs may be potential anticancer agents as they selectively inhibit breast cancer cells.
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Affiliation(s)
- Harika Atmaca
- Department of Biology, Faculty of Science and Letters, Celal Bayar University, 45140, Manisa, Turkey
| | - Suleyman Ilhan
- Department of Biology, Faculty of Science and Letters, Celal Bayar University, 45140, Manisa, Turkey
| | - Esra Korkmaz
- Department of Chemistry, Middle East Technical University, 06800, Ankara, Turkey
| | - Metin Zora
- Department of Chemistry, Middle East Technical University, 06800, Ankara, Turkey
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3
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Synthesis, crystal structure, spectroscopic, quantum chemical investigation, molecular docking and ADMET prediction of 2(E)-3-(anthracen-9-yl)-1-(1-methyl-1H-pyrrol-2-yl) prop-2-en-1-one. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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4
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Unexpected dihydropyridinium derivatives using a multicomponent reaction containing unprotected amino acids. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.131061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Lakshmanan S, Govindaraj D, Mahalakshmi K, Thirumurugan K, Ramalakshmi N, Antony SA. Synthesis, characterization, and anti-cancer activity of chalcone derivatives as-potent anaplastic lymphoma kinase inhibitors. Struct Chem 2021. [DOI: 10.1007/s11224-020-01707-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Atmaca H, Ilhan S, Yilmaz ES, Zora M. 4-Propargyl-substituted 1H-pyrroles induce apoptosis and autophagy via extracellular signal-regulated signaling pathway in breast cancer. Arch Pharm (Weinheim) 2021; 354:e2100170. [PMID: 34165807 DOI: 10.1002/ardp.202100170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/06/2021] [Accepted: 06/07/2021] [Indexed: 11/10/2022]
Abstract
Novel pyrrole derivatives (PDs) with propargyl units (1-7) were investigated for their anticancer activity on breast cancer cells. The MTT assay was used to assess the cell viability. Morphological changes in human breast cancer cells were visualized under a phase-contrast microscope. Apoptosis and autophagy were detected using the DNA fragmentation assay and staining by autophagic vacuoles, respectively. The levels of apoptosis- and autophagy-related proteins such as cytochrome c, Bcl-2, LC3-I/II were investigated by Western blot analysis. The effect of PDs on the ERK1/2 signaling pathway was investigated using specific inhibitors. All the tested PDs were found to be active in the range of 36.7 ± 0.2 to 459.7 ± 4.2 µM. Compounds 3 and 4 showed cytotoxic activity in breast cancer cells, but were found to be safer with lower cytotoxicity on human nontumorigenic epithelial breast cells. Compound 4 induced apoptosis, whereas compound 3 induced autophagy. Both compounds inhibited the ERK signaling pathway in breast cancer cells. The present study revealed that both synthesized PDs induced different programmed cell death types by inhibiting the ERK signaling pathway in two genotypically different breast cancer cells. Therefore, novel PDs might be promising anticancer agents for breast cancer therapy and further structural modifications of PDs may yield promising anticancer agents.
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Affiliation(s)
- Harika Atmaca
- Department of Biology, Faculty of Science and Letters, Manisa Celal Bayar University, Manisa, Turkey
| | - Suleyman Ilhan
- Department of Biology, Faculty of Science and Letters, Manisa Celal Bayar University, Manisa, Turkey
| | - Elif Serel Yilmaz
- Department of Chemistry, Middle East Technical University, Ankara, Turkey
| | - Metin Zora
- Department of Chemistry, Middle East Technical University, Ankara, Turkey
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7
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Andin AN. A three-component condensation of cyclic enamino ketones, phenylglyoxal hydrate, and ethyl cyanoacetate. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-02863-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Modulation of Differentiation of Embryonic Stem Cells by Polypyrrole: The Impact on Neurogenesis. Int J Mol Sci 2021; 22:ijms22020501. [PMID: 33419082 PMCID: PMC7825406 DOI: 10.3390/ijms22020501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/23/2020] [Accepted: 12/29/2020] [Indexed: 12/30/2022] Open
Abstract
The active role of biomaterials in the regeneration of tissues and their ability to modulate the behavior of stem cells in terms of their differentiation is highly advantageous. Here, polypyrrole, as a representantive of electro-conducting materials, is found to modulate the behavior of embryonic stem cells. Concretely, the aqueous extracts of polypyrrole induce neurogenesis within embryonic bodies formed from embryonic stem cells. This finding ledto an effort to determine the physiological cascade which is responsible for this effect. The polypyrrole modulates signaling pathways of Akt and ERK kinase through their phosphorylation. These effects are related to the presence of low-molecular-weight compounds present in aqueous polypyrrole extracts, determined by mass spectroscopy. The results show that consequences related to the modulation of stem cell differentiation must also be taken into account when polypyrrole is considered as a biomaterial.
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Ranjbar S, Shabanpoor MR, Dehghani Z, Firuzi O, Edraki N, Khoshneviszadeh M. Dihydronaphthalenone chalconoid derivatives as potential cathepsin B inhibitors; design, synthesis, cytotoxicity evaluation and docking analysis. BRAZ J PHARM SCI 2021. [DOI: 10.1590/s2175-979020200004181074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | | | | | | | | | - Mehdi Khoshneviszadeh
- Shiraz University of Medical Sciences, Iran; Shiraz University of Medical Sciences, Iran
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10
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Mbugua S, Sibuyi NRS, Njenga LW, Odhiambo RA, Wandiga SO, Meyer M, Lalancette RA, Onani MO. New Palladium(II) and Platinum(II) Complexes Based on Pyrrole Schiff Bases: Synthesis, Characterization, X-ray Structure, and Anticancer Activity. ACS OMEGA 2020; 5:14942-14954. [PMID: 32637768 PMCID: PMC7330904 DOI: 10.1021/acsomega.0c00360] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Accepted: 05/14/2020] [Indexed: 05/09/2023]
Abstract
New palladium (Pd)II and platinum (Pt)II complexes (C1-C5) from the Schiff base ligands, R-(phenyl)methanamine (L1), R-(pyridin-2-yl)methanamine (L2), and R-(furan-2-yl)methanamine (L3) (R-(E)-N-((1H-pyrrol-2-yl) methylene)) are herein reported. The complexes (C1-C5) were characterized by FTIR, 1H and 13C NMR, UV-vis, and microanalyses. Single-crystal X-ray crystallographic analysis was performed for the two ligands (L1-L2) and a Pt complex. Both L1 and L2 belong to P21/n monoclinic and P-1 triclinic space systems, respectively. The complex C5 belongs to the P21/c monoclinic space group. The investigated molar conductivity of the complexes in DMSO gave the range 4.0-8.8 μS/cm, suggesting neutrality, with log P values ≥ 1.2692 ± 0.004, suggesting lipophilicity. The anticancer activity and mechanism of the complexes were investigated against various human cancerous (Caco-2, HeLa, HepG2, MCF-7, and PC-3) and noncancerous (MCF-12A) cell lines using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and Apopercentage assays, respectively. C5 demonstrated strong DNA-binding affinity for calf thymus DNA (CT-DNA) with a binding constant of 8.049 × 104 M-1. C3 reduced cell viability of all the six cell lines, which included five cancerous cell lines, by more than 80%. The C5 complex also demonstrated remarkably high selectivity with no cytotoxic activity toward the noncancerous breast cell line but reduced the viability of the five cancerous cell lines, which included one breast cancer cell line, by more than 60%. Further studies are required to evaluate the selective toxicity of these two complexes and to fully understand their mechanism of action.
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Affiliation(s)
- Simon
N. Mbugua
- Organometallics
and Nanomaterials, Department of Chemistry, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa
- Department
of Chemistry, University of Nairobi, P.O. Box 30197, Nairobi 00100, Kenya
| | - Nicole R. S. Sibuyi
- Department
of Science and Technology/Mintek Nanotechnology Innovation Centre
(DST/Mintek NIC), Biolabels Node, Department of Biotechnology, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa
| | - Lydia W. Njenga
- Department
of Chemistry, University of Nairobi, P.O. Box 30197, Nairobi 00100, Kenya
| | - Ruth A. Odhiambo
- Department
of Chemistry, University of Nairobi, P.O. Box 30197, Nairobi 00100, Kenya
| | - Shem O. Wandiga
- Department
of Chemistry, University of Nairobi, P.O. Box 30197, Nairobi 00100, Kenya
| | - Mervin Meyer
- Department
of Science and Technology/Mintek Nanotechnology Innovation Centre
(DST/Mintek NIC), Biolabels Node, Department of Biotechnology, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa
| | - Roger A. Lalancette
- Rutgers,
Department of Chemistry, Rutgers State University, 73 Warren St., Newark, New Jersey 07102, United States
| | - Martin O. Onani
- Organometallics
and Nanomaterials, Department of Chemistry, University of the Western Cape, Private Bag X17, Bellville 7535, South Africa
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11
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Ceylan M, Erkan S, Yaglioglu AS, Akdogan Uremis N, Koç E. Antiproliferative Evaluation of Some 2‐[2‐(2‐Phenylethenyl)‐cyclopent‐3‐en‐1‐yl]‐1,3‐benzothiazoles: DFT and Molecular Docking Study. Chem Biodivers 2020; 17:e1900675. [DOI: 10.1002/cbdv.201900675] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/05/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Mustafa Ceylan
- Department of ChemistryTokat Gaziosmanpaşa University 60250 Tokat Turkey
| | - Sultan Erkan
- Department of Chemistry and Chemical Process TechnologySivas Cumhuriyet University 58140 Sivas Turkey
| | - Ayse Sahin Yaglioglu
- Department of ChemistryFaculty of ScienceÇankırı Karatekin University 18100 Çankırı Turkey
| | | | - Esra Koç
- Department of ChemistryTokat Gaziosmanpaşa University 60250 Tokat Turkey
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12
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Prabu DSD, Lakshmanan S, Thirumurugan K, Ramalakshmi N, Antony SA. Synthesis, Molecular Docking, DFT Study of Novel N-Benzyl-2-(3-cyano-4-isobutoxyphenyl)-
4-methylthiazole-5-carboxamide Derivatives and their Antibacterial Activity. ACTA ACUST UNITED AC 2020. [DOI: 10.14233/ajchem.2020.22390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A series of febuxostat based new chemical entities was synthesized using microwave method and characterized by NMR, mass and FT-IR spectral studies. Molecular docking of febuxostat amide nucleus substitution compounds 8c (-7.91kcal/mol), 8g (-7.94 kcal/mol) exhibiting high binding energy against ALK receptors. Theoretical investigation of MEPs, HOMO, LUMO and energy gap of HOMO-LUMO were calculated by B3LYP/6-31G method. Among the tested compounds, methoxy substituted compound 8g showed highest antibacterial activity against S. aereus and B. subtilis.
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Affiliation(s)
| | | | - K. Thirumurugan
- Department of Chemistry, Presidency College, Chennai-600005, India
| | - N. Ramalakshmi
- Department of Chemistry, Presidency College, Chennai-600005, India
| | - S. Arul Antony
- Department of Chemistry, Presidency College, Chennai-600005, India
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13
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Computational approach to study the synthesis of noscapine and potential of stereoisomers against nsP3 protease of CHIKV. Heliyon 2019; 5:e02795. [PMID: 32382664 PMCID: PMC7201138 DOI: 10.1016/j.heliyon.2019.e02795] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 09/11/2019] [Accepted: 10/31/2019] [Indexed: 11/29/2022] Open
Abstract
Chikungunya fever is a major public health issue in India affecting millions of people and occurs due to Chikungunya. Chikungunya virus (CHIKV) is a single stranded RNA virus from the family of Togaviridae and genus alpha virus. It contain three structural proteins: glycosylated E1 and E2, embedded in the viral envelope, and a non-glycosylated nucleocapsid protein. Till date, researchers are working on inhibition of CHIKV but till now no cheap and effective medicine is available in the market. Therefore, the authors of this work thought of isoquinoline based noscapine to inhibit the nsP3 protease of CHIKV. The aim of the work is to understand the mechanism for the synthesis of noscapine theoretically using DFT. Further study the potential of all four isomers of noscapines {(13 (S,R), 14 (R,R), 15 (R,S) and 16 (S,S)} against nsP3 protease of CHIKV with the help of docking and MD simulation. The integrated e-pharmacophore binding affinity based virtual screening, docking and molecular dynamics simulation recognized four hits isomers as inhibition nsP3 protease of CHIKV. The docking energies of all the isomers of noscapine (13–16) with nsP3 protease CHIKV was found out to be more negative than baicalin (−8.06 kcal/mol) on selected sites. Amongst the isomers of noscapine, CMPD 13 possessed best binding affinity with four hydrogen bonding interactions. Further, ADME properties and blood-brain barrier permeability properties have been calculated. DFT studies of all the isomers of noscapine was investigated.
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14
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Synthesis of Polysubstituted Pyrroles by the Reaction of Enaminoketones, Arylglyoxals, and N,N-Dimethylbarbituric Acid. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02613-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Louroubi A, Nayad A, Hasnaoui A, Hdoufane I, Idouhli R, Saadi M, El Ammari L, Abdessalam A, Berraho M, El Firdoussi L, Ait Ali M. Synthesis, structural characterization, theoretical studies and corrosion inhibition of a new pyrrole derivative:1-(1-benzyl-4-(4-chlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl)ethanone. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.095] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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16
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A model to study the inhibition of nsP2B-nsP3 protease of dengue virus with imidazole, oxazole, triazole thiadiazole, and thiazolidine based scaffolds. Heliyon 2019; 5:e02124. [PMID: 31406937 PMCID: PMC6684460 DOI: 10.1016/j.heliyon.2019.e02124] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/26/2019] [Accepted: 07/18/2019] [Indexed: 12/20/2022] Open
Abstract
A theoretical model was developed to allosterically inhibit the biological activity of dengue virus (DENV) by targeting the non-structural protein ns2B-nsP3 protease based on the in silico studies. The imidazole, oxazole, triazole, thiadiazole, and thiazolidine based scaffolds were imported from the ZINC database, reported by various research group with different biological activity. They were found biologically active as they contain heterocyclic fragments. Generic evolutionary based molecular docking was performed to screen the highly potent molecule. The docking results show that the molecule having ZINC ID-633972 is best inhibitor. Further, the bioavailability and other physiochemical parameters were also calculated for the top four molecule. The highly potent molecule was further refined by the density functional theory and molecular dynamic (MD) simulation. The MD analysis coroborate the successful docking of the molecule in the binding cavity of nsP2B-nsP3 protease of DENV. The Molecular Mechanics Poisson-Boltzmann Surface Area approach was also applied and result coroborate the docking and MD result.
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Sam Daniel Prabu D, Lakshmanan S, Ramalakshmi N, Thirumurugan K, Govindaraj D, Antony SA. Synthesis, characterization of benzimidazole carboxamide derivatives as potent anaplastic lymphoma kinase inhibitor and antioxidant activity. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2018.1554144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- D. Sam Daniel Prabu
- PG and Research Department of Chemistry, Presidency College, Chennai, TN, India
| | | | - N. Ramalakshmi
- PG and Research Department of Chemistry, Presidency College, Chennai, TN, India
| | - K. Thirumurugan
- PG and Research Department of Chemistry, Presidency College, Chennai, TN, India
| | - Dharman Govindaraj
- Biomaterials in Medicinal Chemistry Lab, Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, TN, India
| | - S. Arul Antony
- PG and Research Department of Chemistry, Presidency College, Chennai, TN, India
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18
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Thirumurugan K, Lakshmanan S, Govindaraj D, Daniel Prabu DS, Ramalakshmi N, Arul Antony S. Design, synthesis and anti-inflammatory activity of pyrimidine scaffold benzamide derivatives as epidermal growth factor receptor tyrosine kinase inhibitors. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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19
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Ahmad S, Alam O, Naim MJ, Shaquiquzzaman M, Alam MM, Iqbal M. Pyrrole: An insight into recent pharmacological advances with structure activity relationship. Eur J Med Chem 2018; 157:527-561. [PMID: 30119011 DOI: 10.1016/j.ejmech.2018.08.002] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 07/15/2018] [Accepted: 08/01/2018] [Indexed: 12/15/2022]
Abstract
Pyrrole is a heterocyclic ring template with multiple pharmacophores that provides a way for the generation of library of enormous lead molecules. Owing to its vast pharmacological profile, pyrrole and its analogues have drawn much attention of the researchers/chemists round the globe to be explored exhaustively for the benefit of mankind. This review focusses on recent advancements; pertaining to pyrrole scaffold, discussing various aspects of structure activity relationship and its bioactivities.
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Affiliation(s)
- Shujauddin Ahmad
- Medicinal Chemistry and Molecular Modelling Lab, Dept. of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi, 62, India
| | - Ozair Alam
- Medicinal Chemistry and Molecular Modelling Lab, Dept. of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi, 62, India.
| | - Mohd Javed Naim
- Medicinal Chemistry and Molecular Modelling Lab, Dept. of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi, 62, India
| | - Mohammad Shaquiquzzaman
- Medicinal Chemistry and Molecular Modelling Lab, Dept. of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi, 62, India
| | - M Mumtaz Alam
- Medicinal Chemistry and Molecular Modelling Lab, Dept. of Pharmaceutical Chemistry, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar, New Delhi, 62, India
| | - Muzaffar Iqbal
- Dept. of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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20
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A clean synthesis of 2,5-dihydro-1H-pyrrole-2-carboxylates under catalyst-free and solvent-free conditions: cytotoxicity and molecular docking studies. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1359-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Zargari F, Lotfi M, Shahraki O, Nikfarjam Z, Shahraki J. Flavonoids as potent allosteric inhibitors of protein tyrosine phosphatase 1B: molecular dynamics simulation and free energy calculation. J Biomol Struct Dyn 2017; 36:4126-4142. [PMID: 29216799 DOI: 10.1080/07391102.2017.1409651] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Protein tyrosine phosphatase 1B (PTP1B) is a member of the PTP superfamily which is considered to be a negative regulator of insulin receptor (IR) signaling pathway. PTP1B is a promising drug target for the treatment of type 2 diabetes, obesity, and cancer. The existence of allosteric site in PTP1B has turned the researcher's attention to an alternate strategy for inhibition of this enzyme. Herein, the molecular interactions between the allosteric site of PTP1B with three non-competitive flavonoids, (MOR), (MOK), and (DPO) have been investigated. Three ligands were docked into allosteric site of the enzyme. The resulting protein-ligand complexes were used for molecular dynamics studies. Principal component and free-energy landscape (FEL) as well as cluster analyses were used to investigate the conformational and dynamical properties of the protein and identify representative enzyme substrates bounded to the inhibitors. Per residue energy decomposition analysis attributed dissimilar affinities of three inhibitors to the several hydrogen bonds and non-bonded interactions. In conclusion, our results exhibited an inhibitory pattern of the ligands against PTP1B.
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Affiliation(s)
- Farshid Zargari
- a Medicinal and Natural Products Chemistry Research Center , Shiraz University of Medical Sciences , Shiraz , Iran
| | - Maryam Lotfi
- b Testing Calibration, Geotechnic & Technical Inspection Servies , Binaazma Sepahan Consulting Eng. Co. , Isfahan , Iran
| | - Omolbanin Shahraki
- c Health Technology Incubator Center , Zahedan University of Medical Sciences , Zahedan , Iran
| | - Zahra Nikfarjam
- d Department of Molecular and Supramolecular Modelling , Chemistry and Chemical Engineering Research Center of Iran , Tehran , Iran
| | - Jafar Shahraki
- e Department of Pharmacology and Toxicology, Faculty of Pharmacy , Zabol University of Medical Sciences , Zabol , Iran
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22
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Lakshmanan S, Govindaraj D, Ramalakshmi N, Antony SA. Synthesis, molecular docking, DFT calculations and cytotoxicity activity of benzo[g]quinazoline derivatives in choline chloride-urea. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.08.082] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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