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Singh R, Sindhu J, Devi M, Kumar A, Kumar R, Hussain K, Kumar P. Solid‐Supported Materials‐Based Synthesis of 2‐Substituted Benzothiazoles: Recent Developments and Sanguine Future. ChemistrySelect 2021. [DOI: 10.1002/slct.202101368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Rahul Singh
- Department of Chemistry Kurukshetra University Kurukshetra 136119 INDIA
| | - Jayant Sindhu
- Department of Chemistry COBS&H CCS Haryana Agricultural University Hisar 125004 INDIA
| | - Meena Devi
- Department of Chemistry Kurukshetra University Kurukshetra 136119 INDIA
| | - Ashwani Kumar
- Department of Pharmaceutical Sciences Guru Jambheshwar University of Science and Technology Hisar 125001 INDIA
| | - Ramesh Kumar
- Department of Chemistry Kurukshetra University Kurukshetra 136119 INDIA
| | - Khalid Hussain
- Department of Applied Sciences and Humanities Mewat Engineering College Nuh 122107 INDIA
| | - Parvin Kumar
- Department of Chemistry Kurukshetra University Kurukshetra 136119 INDIA
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Duhan M, Sindhu J, Kumar P, Devi M, Singh R, Kumar R, Lal S, Kumar A, Kumar S, Hussain K. Quantitative structure activity relationship studies of novel hydrazone derivatives as α-amylase inhibitors with index of ideality of correlation. J Biomol Struct Dyn 2020; 40:4933-4953. [PMID: 33357037 DOI: 10.1080/07391102.2020.1863861] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The present manuscript describes the synthesis, α-amylase inhibition, in silico studies and in-depth quantitative structure-activity relationship (QSAR) of a library of aroyl hydrazones based on benzothiazole skeleton. All the compounds of the developed library are characterized by various spectral techniques. α-Amylase inhibitory potential of all compounds has been explored, where compound 7n exhibits remarkable α-amylase inhibition of 87.5% at 50 µg/mL. Robust QSAR models are made by using the balance of correlation method in CORAL software. The chemical structures at different concentration with optimal descriptors are represented by SMILES. A data set of 66 SMILES of 22 hydrazones at three distinct concentrations are prepared. The significance of the index of ideality of correlation (IIC) with applicability domain (AD) is also studied at depth. A QSAR model with best Rvalidation2 = 0.8587 for split 1 is considered as a leading model. The outliers and promoters of increase and decrease of endpoint are also extracted. The binding modes of the most active compound, that is, 7n in the active site of Aspergillus oryzae α-amylase (PDB ID: 7TAA) are also explored by in silico molecular docking studies. Compound 7n displays high resemblance in binding mode and pose with the standard drug acarbose. Molecular dynamics simulations performed on protein-ligand complex for 100 ns, the protein gets stabilised after 20 ns and remained below 2 Å for the remaining simulation. Moreover, the deviation observed in RMSF during simulation for each amino acid residue with respect to Cα carbon atom is insignificant.
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Affiliation(s)
- Meenakshi Duhan
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
| | - Jayant Sindhu
- Department of Chemistry, COBS&H, CCS Haryana Agricultural University, Hisar, India
| | - Parvin Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
| | - Meena Devi
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
| | - Rahul Singh
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
| | - Ramesh Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
| | - Sohan Lal
- Department of Chemistry, Kurukshetra University, Kurukshetra, India
| | - Ashwani Kumar
- Department of Pharmaceutical Sciences, Guru Jambeshwar University of Science and Technology, Hisar, India
| | - Sudhir Kumar
- Department of MBB&B, COBS&H, CCS Haryana Agricultural University, Hisar, India
| | - Khalid Hussain
- Department of Applied Sciences and Humanities, Mewat Engineering College, Nuh, India
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Bhatia R, Kadyan K, Duhan M, Devi M, Singh R, Kamboj RC, Kumar P. A Serendipitous Synthesis: SiO2‐HNO3Mediated Oxidative Aromatization and Regioselective Nitration of 1,3,5‐Trisubstituted‐4,5‐Dihydro‐1H‐Pyrazoles. ChemistrySelect 2019. [DOI: 10.1002/slct.201902285] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Rimpy Bhatia
- Department of ChemistryKurukshetra University Kurukshetra- 136119 Haryana
| | - Kulbir Kadyan
- Department of ChemistryKurukshetra University Kurukshetra- 136119 Haryana
| | - Meenakshi Duhan
- Department of ChemistryKurukshetra University Kurukshetra- 136119 Haryana
| | - Meena Devi
- Department of ChemistryKurukshetra University Kurukshetra- 136119 Haryana
| | - Rahul Singh
- Department of ChemistryKurukshetra University Kurukshetra- 136119 Haryana
| | - Ramesh C. Kamboj
- Department of ChemistryKurukshetra University Kurukshetra- 136119 Haryana
| | - Parvin Kumar
- Department of ChemistryKurukshetra University Kurukshetra- 136119 Haryana
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Kumar P, Kumar A. Nucleobase sequence based building up of reliable QSAR models with the index of ideality correlation using Monte Carlo method. J Biomol Struct Dyn 2019; 38:3296-3306. [PMID: 31411551 DOI: 10.1080/07391102.2019.1656109] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This study describes in silico designing of aptamers against the influenza virus using Monte Carlo method. Aptamers are short, single-stranded oligonucleotides and these bind to an ample range of biologically important proteins which are related to many disease conditions. The affinities and specificities of aptamers are comparable to antibodies. In the medicinal chemistry, quantitative structure-activity relationship (QSAR) is an important skill which is used for drug design and development. To study the inhibitory activity of aptamers, we have developed QSAR models based on Monte Carlo method. The nucleobase sequence descriptors Bk, BBk and BBBk are used to generate the QSAR models. A number of statistical benchmarks together with index of ideality of correlation (IIC) is considered to validate the build QSAR models. Data set of 98 aptamers is divided into four random splits. The statistical criteria R2 = 0.8711 and CCC = 0.9207 of the validation set of split 3 are best, so the build QSAR model of split 3 is the paramount model. The aptamer fragment responsible for the promotors of endpoint increase and decrease are also determined. These fragments are applied to design new nine aptamers from the lead aptamer APT01.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Parvin Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Ashwani Kumar
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar, Haryana, India
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Silica-supported ceric ammonium nitrate (CAN): a simple, mild and solid-supported reagent for quickest oxidative aromatization of Hantzsch 1,4-dihydropyridines. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0666-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Khalili D, Etemadi-Davan E, Banazadeh AR. 2-Arylation/alkylation of benzothiazoles using superparamagneticgraphene oxide-Fe3
O4
hybrid material as a heterogeneous catalystwith diisopropyl azodicarboxylate (DIAD) as an oxidant. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3971] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Dariush Khalili
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Elham Etemadi-Davan
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Ali Reza Banazadeh
- Department of Chemistry and Biochemistry; Texas Tech. University; Lubbock Texas 79409 USA
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Kumar P, Bhatia R, Khanna R, Dalal A, Kumar D, Surain P, Kamboj RC. Synthesis of some benzothiazoles by developing a new protocol using urea nitrate as a catalyst and their antimicrobial activities. J Sulphur Chem 2017. [DOI: 10.1080/17415993.2017.1334781] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Parvin Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Rimpy Bhatia
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Radhika Khanna
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Aarti Dalal
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Dinesh Kumar
- Department of Chemistry, Hindu College, University of Delhi, Delhi, India
| | - Parveen Surain
- Department of Microbiology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Ramesh C. Kamboj
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
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Kumar R, Khanna R, Kumar P, Kumar V, Kamboj RC. Synthesis of Some 4-Quinolinyl Pyridines and their Antimicrobial and Docking Studies. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2876] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Ramesh Kumar
- Department of Chemistry; Kurukshetra University; Kurukshetra 136119 India
| | - Radhika Khanna
- Department of Chemistry; Kurukshetra University; Kurukshetra 136119 India
| | - Parvin Kumar
- Department of Chemistry; Kurukshetra University; Kurukshetra 136119 India
| | - Vikas Kumar
- Department of Microbiology; Kurukshetra University; Kurukshetra 136119 India
| | - Ramesh C. Kamboj
- Department of Chemistry; Kurukshetra University; Kurukshetra 136119 India
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