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Dowarah J, Hazarika B, Sran BS, Khiangte D, Singh VP. Design, synthesis, structural investigation and binding study of 2-pyridone-based pharmaceutical precursor with DNA. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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Dowarah J, Marak BN, Sran BS, Shah PK, Shukla PK, Singh VP. Synthesis of a Pyridone-Based Phthalimide Fleximer and Its Characterization and Supramolecular Property Evaluation. ACS Omega 2022; 7:24485-24497. [PMID: 35874266 PMCID: PMC9301638 DOI: 10.1021/acsomega.2c02095] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this study, a novel pyridone-based phthalimide fleximer, that is, ethyl 5-cyano-6-(3-(1,3-dioxoisoindolin-2-yl)propoxy)-4-(3-methoxyphenyl)-2-methylnicotinate, was synthesized, and its structure was established by the single-crystal X-ray diffraction method. The supramolecular self-assembly of the titled compound through noncovalent interactions was then investigated thoroughly. The titled compound crystallized with two symmetry-independent molecules (A and B, Z' = 2). In agreement with experimental observations, our density functional theory calculations also showed that the titled compound has a flexible motif and can occur in various conformations, including molecules A and B. The investigation of the supramolecular framework revealed that the molecules are notably bound by the nonclassical C-H···O and C-H···N hydrogen bonds and C-H···π interactions. Hirshfeld surface analysis was carried out to quantify the various intermolecular interactions. The dual anti-inflammatory activity of the tilted compound was also explored by molecular docking in the active sites of 5-LOX and COX-2 receptors, which revealed good binding affinities of -9.0 and -8.6 kcal/mol, respectively.
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Affiliation(s)
- Jayanta Dowarah
- Department
of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India
| | - Brilliant N. Marak
- Department
of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India
| | - Balkaran Singh Sran
- Department
of Chemistry, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | | | | | - Ved Prakash Singh
- Department
of Industrial Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India
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Lalhruaizela, Patel D, Marak BN, Dowarah J, Sran BS, Yadav UCS, Singh VP. Supramolecular architectures in dihydropyridones: Synthesis, crystal structure, Hirshfeld analysis, cytotoxicity and in silico studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131671] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Dowarah J, Patel D, Marak BN, Yadav UCS, Shah PK, Shukla PK, Singh VP. Green synthesis, structural analysis and anticancer activity of dihydropyrimidinone derivatives. RSC Adv 2021; 11:35737-35753. [PMID: 35492774 PMCID: PMC9043124 DOI: 10.1039/d1ra03969e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 10/14/2021] [Indexed: 01/10/2023] Open
Abstract
In this study, for the first time, we have used Citrus macroptera juice to synthesize dihydropyrimidine (DHPM) derivatives via the Biginelli reaction, which showed better yield, shorter reaction time, and did not require an organic solvent for the reaction. A series of DHPM derivatives were synthesized, and characterized, and structural analysis was achieved through SCXRD & Hirshfeld surface analysis. We observed that these synthesized dihydropyrimidine (DHPM) derivatives showed C–H⋯π, C–H⋯O, C–H⋯N, C–H⋯C, lone pair⋯π, π⋯π, etc. interactions. We also performed in silico studies for their inhibitory activities against human kinesin Eg5 enzyme, and the cytotoxic activity of the synthesized compounds was carried out against A549 lung adenocarcinoma cells. In silico analysis demonstrated that compounds with a chloro-group at the 3- or 4-position in the substituted ring of DHPM showed higher binding affinity for the human kinesin Eg5 enzyme (−7.9 kcal mol−1) than the standard drug monastrol (−7.8 kcal mol−1). Furthermore, in vitro cellular studies revealed that compounds with a chloro-group at the 3- or 4-position in the substituted ring of DHPM induced significant cell death in human A549 lung adenocarcinoma cells. This result indicates that a deactivating group (chlorine) at the 3- or 4-position in the substituted ring of DHPM might be a promising anticancer drug candidate for treating different types of cancers, particularly cancer of the lung. Green synthesis, study and development of new potent dihydropyrimidinone analogues as anti-cancer drugs.![]()
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Affiliation(s)
- Jayanta Dowarah
- Department of Chemistry, School of Physical Sciences, Mizoram University Aizawl-796004 Mizoram India
| | - Devanshi Patel
- School of Life Sciences, Central University of Gujarat Gandhinagar Gujarat 382030 India
| | - Brilliant N Marak
- Department of Chemistry, School of Physical Sciences, Mizoram University Aizawl-796004 Mizoram India
| | | | | | | | - Ved Prakash Singh
- Department of Chemistry, School of Physical Sciences, Mizoram University Aizawl-796004 Mizoram India .,Department of Industrial Chemistry, School of Physical Sciences, Mizoram University Aizawl-796004 Mizoram India
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Dowarah J, Marak BN, Yadav UCS, Singh VP. Potential drug development and therapeutic approaches for clinical intervention in COVID-19. Bioorg Chem 2021; 114:105016. [PMID: 34144277 PMCID: PMC8143914 DOI: 10.1016/j.bioorg.2021.105016] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 05/20/2021] [Indexed: 01/25/2023]
Abstract
While the vaccination is now available to many countries and will slowly dissipate to others, effective therapeutics for COVID-19 is still illusive. The SARS-CoV-2 pandemic has posed an unprecedented challenge to researchers, scientists, and clinicians and affected the wellbeing of millions of people worldwide. Since the beginning of the pandemic, a multitude of existing anti-viral, antibiotic, antimalarial, and anticancer drugs have been tested, and some have shown potency in the treatment and management of COVID-19, albeit others failed to leave any positive impact and a few also became controversial as they showed mixed clinical outcomes. In the present article, we have brought together some of the candidate therapeutic drugs being repurposed or used in the clinical trials and discussed their clinical efficacy and safety for COVID-19.
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Affiliation(s)
- Jayanta Dowarah
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India
| | - Brilliant N Marak
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India
| | | | - Ved Prakash Singh
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India; Department of Industrial Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India.
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Singh VP, Dowarah J, Marak BN, Sran BS, Tewari AK. Study of the structure-bioactivity of fleximers: synthesis, crystal structure, Hirshfeld surface analysis, and anti-inflammatory assays. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130513] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Marak BN, Dowarah J, Khiangte L, Singh VP. Step toward repurposing drug discovery for COVID-19 therapeutics through in silico approach. Drug Dev Res 2020; 82:374-392. [PMID: 33170521 DOI: 10.1002/ddr.21757] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/06/2020] [Accepted: 09/08/2020] [Indexed: 12/15/2022]
Abstract
The outbreak of SARS-CoV-2 has become a threat to global health and has led to a global economic crisis. Although the researchers worldwide are putting tremendous effort toward gaining more insights into this zoonotic virus and developing vaccines and therapeutic drugs, no vaccine or drug is yet available to combat COVID-19 effectively. Drug discovery is often a laborious, time-consuming, and expensive task. In this time of crisis, employing computational methods could provide a feasible alternative approach that can potentially be used for drug discovery. Therefore, a library of several antiparasitic and anti-inflammatory drugs was virtually screened against SARS-CoV-2 proteases to identify potential inhibitors. The identified inhibitory drugs were further analyzed to confirm their activities against SARS-CoV-2. Our results could prove to be helpful in repurposing the drug discovery approach, which could substantially reduce the expenses, time, and resources required.
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Affiliation(s)
- Brilliant N Marak
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, Mizoram, India
| | - Jayanta Dowarah
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, Mizoram, India
| | - Laldingluaia Khiangte
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, Mizoram, India
| | - Ved Prakash Singh
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, Mizoram, India
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Singh VP, Dowarah J, Marak BN, Tewari AK. Design, synthesis, in silico analysis with
PPAR
‐γ receptor and study of non‐covalent interactions in unsymmetrical heterocyclic/phenyl fleximer. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ved Prakash Singh
- Department of Chemistry School of Physical Sciences, Mizoram University Aizawl Mizoram India
- Department of Chemistry Institute of Science, Banaras Hindu University Varanasi Uttar Pradesh India
| | - Jayanta Dowarah
- Department of Chemistry School of Physical Sciences, Mizoram University Aizawl Mizoram India
| | - Brilliant N. Marak
- Department of Chemistry School of Physical Sciences, Mizoram University Aizawl Mizoram India
| | - Ashish Kumar Tewari
- Department of Chemistry Institute of Science, Banaras Hindu University Varanasi Uttar Pradesh India
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Marak BN, Dowarah J, Khiangte L, Singh VP. A comprehensive insight on the recent development of Cyclic Dependent Kinase inhibitors as anticancer agents. Eur J Med Chem 2020; 203:112571. [DOI: 10.1016/j.ejmech.2020.112571] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/09/2020] [Accepted: 06/11/2020] [Indexed: 12/19/2022]
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Dowarah J, Marak BN, Lalhruaizela, Sran BS, Singh VP. Design, Synthesis, In Silico Analysis, and Structural Study of 4,6-Dimethyl-2-(3-(p
-tolyloxy)propoxy)nicotinonitrile Fleximer. Crystal Research and Technology 2020. [DOI: 10.1002/crat.202000100] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jayanta Dowarah
- Department of Chemistry; Physical Sciences; Mizoram University; Aizawl Mizoram 796004 India
| | - Brilliant N. Marak
- Department of Chemistry; Physical Sciences; Mizoram University; Aizawl Mizoram 796004 India
| | - Lalhruaizela
- Department of Chemistry; Physical Sciences; Mizoram University; Aizawl Mizoram 796004 India
| | - Balkaran S. Sran
- Department of Chemistry; Guru Nanak Dev University; Amritsar Punjab 143005 India
| | - Ved P. Singh
- Department of Chemistry; Physical Sciences; Mizoram University; Aizawl Mizoram 796004 India
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Singh VP, Dowarah J, Tewari AK, Geiger DK. Structural chemistry and anti-inflammatory activity of flexible/restricted phenyl dimers. J IRAN CHEM SOC 2020. [DOI: 10.1007/s13738-020-01853-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Dowarah J, Singh VP. Anti-diabetic drugs recent approaches and advancements. Bioorg Med Chem 2020; 28:115263. [PMID: 32008883 DOI: 10.1016/j.bmc.2019.115263] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 11/20/2019] [Accepted: 12/11/2019] [Indexed: 02/07/2023]
Abstract
Diabetes is one of the major diseases worldwide and is the third leading cause of death in the United States. Anti-diabetic drugs are used in the treatment of diabetes mellitus to control glucose levels in the blood. Most of the drugs are administered orally, except for a few of them, such as insulin, exenatide, and pramlintide. In this review, we are going to discuss seven major types of anti-diabetic drugs: Peroxisome proliferator-activated receptor (PPAR) agonist, protein tyrosine phosphatase 1B (PTP1B) inhibitors, aldose reductase inhibitors, α-glucosidase inhibitors, dipeptidyl peptidase IV (DPP-4) inhibitors, G protein-coupled receptor (GPCR) agonists and sodium-glucose co-transporter (SGLT) inhibitors. Here, we are also discussing some of the recently reported anti-diabetic agents with its multi-target pharmacological actions. This review summarises recent approaches and advancement in anti-diabetes treatment concerning characteristics, structure-activity relationships, functional mechanisms, expression regulation, and applications in medicine.
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Affiliation(s)
- Jayanta Dowarah
- Department of Chemistry, Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India
| | - Ved Prakash Singh
- Department of Chemistry, Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India.
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Singh VP, Dowarah J, Lalhruaizela, Geiger DK. Structural and Non-Covalent Interactions Study of 2-Pyridone Based Flexible Unsymmetrical Dimer. Crystal Research and Technology 2019. [DOI: 10.1002/crat.201900136] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ved P. Singh
- Department of Chemistry; Physical Sciences; Mizoram University; Aizawl 796004 Mizoram India
| | - Jayanta Dowarah
- Department of Chemistry; Physical Sciences; Mizoram University; Aizawl 796004 Mizoram India
| | - Lalhruaizela
- Department of Chemistry; Physical Sciences; Mizoram University; Aizawl 796004 Mizoram India
| | - David K. Geiger
- Department of Chemistry; State University of New York; College at Geneseo; Geneseo NY 14454 USA
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