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Treuer AV, Faúndez M, Ebensperger R, Hovelmeyer E, Vergara-Jaque A, Perera-Sardiña Y, Gutierrez M, Fuentealba R, González DR. New NADPH Oxidase 2 Inhibitors Display Potent Activity against Oxidative Stress by Targeting p22 phox-p47 phox Interactions. Antioxidants (Basel) 2023; 12:1441. [PMID: 37507978 PMCID: PMC10376059 DOI: 10.3390/antiox12071441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/03/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
NADPH oxidase (NOX2) is responsible for reactive oxygen species (ROS) production in neutrophils and has been recognized as a key mediator in inflammatory and cardiovascular pathologies. Nevertheless, there is a lack of specific NOX2 pharmacological inhibitors. In medicinal chemistry, heterocyclic compounds are essential scaffolds for drug design, and among them, indole is a very versatile pharmacophore. We tested the hypothesis that indole heteroaryl-acrylonitrile derivatives may serve as NOX2 inhibitors by evaluating the capacity of 19 of these molecules to inhibit NOX2-derived ROS production in human neutrophils (HL-60 cells). Of these compounds, C6 and C14 exhibited concentration-dependent inhibition of NOX2 (IC50~1 µM). These molecules also reduced NOX2-derived oxidative stress in cardiomyocytes and prevented cardiac damage induced by ischemia-reperfusion. Compound C6 significantly reduced the membrane translocation of p47phox, a cytosolic subunit that is required for NOX2 activation. Molecular docking analyses of the binding modes of these molecules with p47phox indicated that C6 and C14 interact with specific residues in the inner part of the groove of p47phox, the binding cavity for p22phox. This combination of methods showed that novel indole heteroaryl acrylonitriles represent interesting lead compounds for developing specific and potent NOX2 inhibitors.
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Affiliation(s)
- Adriana V Treuer
- Department of Basic Biomedical Sciences, School of Health Sciences, Universidad de Talca, Avenida Lircay s/n, Talca 3460000, Chile
| | - Mario Faúndez
- Departamento de Farmacia, Escuela de Química y Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago 7820436, Chile
| | - Roberto Ebensperger
- Escuela de Química y Farmacia, Facultad de Medicina y Ciencia, Universidad San Sebastián, Santiago 7510157, Chile
| | - Erwin Hovelmeyer
- Center for Bioinformatics, Simulation and Modeling, Faculty of Engineering, Universidad de Talca, Avenida Lircay s/n, Talca 3460000, Chile
| | - Ariela Vergara-Jaque
- Center for Bioinformatics, Simulation and Modeling, Faculty of Engineering, Universidad de Talca, Avenida Lircay s/n, Talca 3460000, Chile
| | - Yunier Perera-Sardiña
- Department of Basic Biomedical Sciences, School of Health Sciences, Universidad de Talca, Avenida Lircay s/n, Talca 3460000, Chile
| | - Margarita Gutierrez
- Organic Synthesis Laboratory and Biological Activity (LSO-Act-Bio), Institute of Chemistry of Natural Resources, Universidad de Talca, Talca 3460000, Chile
| | - Roberto Fuentealba
- Escuela de Enfermería, Facultad de Salud, Universidad Santo Tomás, Talca 3460000, Chile
| | - Daniel R González
- Department of Basic Biomedical Sciences, School of Health Sciences, Universidad de Talca, Avenida Lircay s/n, Talca 3460000, Chile
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2
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Tuffaha GO, Hatmal MM, Taha MO. Discovery of new JNK3 inhibitory chemotypes via QSAR-Guided selection of docking-based pharmacophores and comparison with other structure-based pharmacophore modeling methods. J Mol Graph Model 2019; 91:30-51. [DOI: 10.1016/j.jmgm.2019.05.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/13/2019] [Accepted: 05/17/2019] [Indexed: 12/21/2022]
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3
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A nonparametric weighted feature extraction-based method for c-Jun N-terminal kinase-3 inhibitor prediction. J Mol Graph Model 2019; 90:235-242. [PMID: 31103916 DOI: 10.1016/j.jmgm.2019.05.006] [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: 02/12/2019] [Revised: 05/09/2019] [Accepted: 05/09/2019] [Indexed: 11/20/2022]
Abstract
In this work, the application of a new strategy called NWFE ensemble (nonparametric weighted feature extraction ensemble) method is proposed. Subspace-supervised projections based on NWFE are incorporated into the construction of ensembles of classifiers to facilitate the correct classification of wrongly classified instances without being detrimental to the overall performance of the ensemble. The performance of NWFE is investigated with a c-Jun N-terminal kinase-3 inhibitor benchmark dataset using different chemical compound representation models. Compared with the standard method, the results obtained show that the applied method improves the prediction performance using two classifiers based on decision trees and support vector machines.
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4
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Synthesis of New (E)-2-(1 H-Indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles via Microwave-Assisted Knoevenagel Condensation. J CHEM-NY 2017. [DOI: 10.1155/2017/8418930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Given the broad spectrum of biological uses of heteroaryl-acrylonitrile derivatives, it is necessary to find simple methods to synthesize and diversify this family of compounds. We report a stereoselective synthesis of a series of new (E)-2-(1H-indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles (3a–3i) obtained from 3-(cyanoacetyl)indole and heteroaryl-aldehydes under microwave-assisted Knoevenagel reaction at 300 W of potency and 100°C. The desired derivatives (3a–3i) were obtained with variable yields (30–94%) and time reactions (8–90 min). All the heteroaryl-acrylonitriles were characterized by physicoanalytical techniques such IR, 1H, 13C NMR, and electrospray mass spectrometry.
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Crystal structure of ( E)-2-(benzo[ d]thiazol-2-yl)-3-(pyridin-3-yl)acrylonitrile). Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C15H9N3S, triclinic, P1̅ (no. 2), a = 9.5737(5) Å, b = 12.0958(4) Å, c = 12.2705(7) Å, α = 64.083(5) Å, β = 80.907(4) Å, γ = 82.800(4), V = 1259.44(11) Å3, Z = 4, R
gt
(F) = 0.0460, wR
ref
(F
2
) = 0.140, T = 293(2) K.
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6
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De-la-Torre P, Osorio E, Alzate-Morales JH, Caballero J, Trilleras J, Astudillo-Saavedra L, Brito I, Cárdenas A, Quiroga J, Gutiérrez M. Ultrasound-assisted phase-transfer catalysis method in an aqueous medium to promote the Knoevenagel reaction: advantages over the conventional and microwave-assisted solvent-free/catalyst-free method. ULTRASONICS SONOCHEMISTRY 2014; 21:1666-74. [PMID: 24650611 DOI: 10.1016/j.ultsonch.2014.02.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 02/20/2014] [Indexed: 05/14/2023]
Abstract
Given the broad spectrum of uses of acrylonitrile derivatives as fluorescent probes, AChE inhibitors, and others, it is necessary to find easy, efficient and simple methods to synthesize and diversify these compounds. We report the results of a comparative study of the effects of three techniques on the reactions between heterocyclic aldehydes and 2-(benzo[d]thiazol-2-yl)acetonitrile: stirring; ultrasound coupled to PTC conditions (US-PTC); and MW irradiation (MWI) under solvent and catalyst-free conditions. The effects of conditions on reaction parameters were evaluated and compared in terms of reaction time, yield, purity and outcomes. The US-PTC method is more efficient than the MWI and conventional methods. The reaction times were considerably shorter, with high yields (>90%) and good levels of purity. In addition, X-ray diffraction analysis and quantum mechanical calculations, at the level of density functional theory (DFT), ratify obtaining acrylonitrile isomers with E configurations. The crystal structure of 3c is stabilized by weak C-Ho⋯N intermolecular interactions (Ho⋯NC=2.45 Å, Co⋯NC=3.348(3) Å, Ho⋯NC=162°), forming centrosymmetric ring R2(2) (20) along the crystallographic a axis.
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Affiliation(s)
- Pedro De-la-Torre
- Organic Synthesis Laboratory and Biological Activity (LSO-Act-Bio), Institute of Chemistry of Natural Resources, Universidad de Talca, Casilla 747, Talca, Chile; Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile.
| | - Edison Osorio
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile.
| | - Jans H Alzate-Morales
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile.
| | - Julio Caballero
- Center for Bioinformatics and Molecular Simulation, Universidad de Talca, 2 Norte 685, Casilla 721, Talca, Chile.
| | - Jorge Trilleras
- Research Group Heterocyclic Compounds, Chemistry Program, Universidad del Atlántico, Km 7 vía Puerto Colombia, Barranquilla, Colombia.
| | - Luis Astudillo-Saavedra
- Organic Synthesis Laboratory and Biological Activity (LSO-Act-Bio), Institute of Chemistry of Natural Resources, Universidad de Talca, Casilla 747, Talca, Chile.
| | - Iván Brito
- Department of Chemistry, Universidad de Antofagasta, Av. Angamos 601, Casilla 170, Antofagasta, Chile.
| | - Alejandro Cárdenas
- Department of Physics, Universidad de Antofagasta, Av. Angamos 601, Casilla 170, Antofagasta, Chile.
| | - Jairo Quiroga
- Heterocyclic Compounds Research Group, Department of Chemistry, Universidad del Valle, A. A. 25360 Cali, Colombia.
| | - Margarita Gutiérrez
- Organic Synthesis Laboratory and Biological Activity (LSO-Act-Bio), Institute of Chemistry of Natural Resources, Universidad de Talca, Casilla 747, Talca, Chile.
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8
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A novel class of selective acetylcholinesterase inhibitors: synthesis and evaluation of (E)-2-(benzo[d]thiazol-2-yl)-3-heteroarylacrylonitriles. Molecules 2012; 17:12072-85. [PMID: 23085657 PMCID: PMC6269038 DOI: 10.3390/molecules171012072] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 08/30/2012] [Accepted: 09/17/2012] [Indexed: 11/17/2022] Open
Abstract
(E)-2-(benzo[d]thiazol-2-yl)-3-heteroarylacrylonitriles are described as a new class of selective inhibitors of acetylcholinesterase (AChE). The most potent compound in the series exhibited good AChE inhibitory activity (IC₅₀ = 64 µM). Compound 7f was found to be more selective than galanthamine in inhibiting AChE and it showed a moderate selectivity index. Kinetic studies on AChE indicated that a competitive type of inhibition pattern exist for these acrylonitrile derivates. Molecular docking models of the ligand-AChE complexes suggest that compound 7 g is located on the periphery of the AChE active site.
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9
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Ligand-based and structure-based approaches in identifying ideal pharmacophore against c-Jun N-terminal kinase-3. J Mol Model 2011; 17:151-63. [PMID: 20393763 DOI: 10.1007/s00894-010-0701-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Accepted: 02/28/2010] [Indexed: 12/17/2022]
Abstract
Structure and ligand based pharmacophore modeling and docking studies carried out using diversified set of c-Jun N-terminal kinase-3 (JNK3) inhibitors are presented in this paper. Ligand based pharmacophore model (LBPM) was developed for 106 inhibitors of JNK3 using a training set of 21 compounds to reveal structural and chemical features necessary for these molecules to inhibit JNK3. Hypo1 consisted of two hydrogen bond acceptors (HBA), one hydrogen bond donor (HBD), and a hydrophobic (HY) feature with a correlation coefficient (r²) of 0.950. This pharmacophore model was validated using test set containing 85 inhibitors and had a good r² of 0.846. All the molecules were docked using Glide software and interestingly, all the docked conformations showed hydrogen bond interactions with important hinge region amino acids (Gln155 and Met149)and these interactions were compared with Hypo1 features. The results of ligand based pharmacophore model (LBPM)and docking studies are validated each other. The structure based pharmacophore model (SBPM) studies have identified additional features, two hydrogen bond donors and one hydrogen bond acceptor. The combination of these methodologies is useful in designing ideal pharmacophore which provides a powerful tool for the discovery of novel and selective JNK3 inhibitors.
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10
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Li C, Zhang X, Zhao M, Wang Y, Wu J, Liu J, Zheng M, Peng S. A class of novel N-(1-methyl-β-carboline-3-carbonyl)-N′-(aminoacid-acyl)-hydrazines: Aromatization leaded design, synthesis, in vitro anti-platelet aggregation/in vivo anti-thrombotic evaluation and 3D QSAR analysis. Eur J Med Chem 2011; 46:5598-608. [DOI: 10.1016/j.ejmech.2011.09.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 09/11/2011] [Accepted: 09/17/2011] [Indexed: 12/29/2022]
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11
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Yao K, Zhao M, Zhang X, Wang Y, Li L, Zheng M, Peng S. A class of oral N-[(1S,3S)-1-methyl-1,2,3,4-tetrahydro-β-carboline-3-carbonyl]- N′-(amino-acid-acyl)hydrazine: Discovery, synthesis, in vitro anti-platelet aggregation/in vivo anti-thrombotic evaluation and 3D QSAR analysis. Eur J Med Chem 2011; 46:3237-49. [DOI: 10.1016/j.ejmech.2011.04.037] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 04/05/2011] [Accepted: 04/12/2011] [Indexed: 01/05/2023]
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12
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Reynolds RC, Ananthan S, Faaleolea E, Hobrath JV, Kwong CD, Maddox C, Rasmussen L, Sosa MI, Thammasuvimol E, White EL, Zhang W, Secrist JA. High throughput screening of a library based on kinase inhibitor scaffolds against Mycobacterium tuberculosis H37Rv. Tuberculosis (Edinb) 2011; 92:72-83. [PMID: 21708485 DOI: 10.1016/j.tube.2011.05.005] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Revised: 05/09/2011] [Accepted: 05/12/2011] [Indexed: 01/10/2023]
Abstract
Kinase targets are being pursued in a variety of diseases beyond cancer, including immune and metabolic as well as viral, parasitic, fungal and bacterial. In particular, there is a relatively recent interest in kinase and ATP-binding targets in Mycobacterium tuberculosis in order to identify inhibitors and potential drugs for essential proteins that are not targeted by current drug regimens. Herein, we report the high throughput screening results for a targeted library of approximately 26,000 compounds that was designed based on current kinase inhibitor scaffolds and known kinase binding sites. The phenotypic data presented herein may form the basis for selecting scaffolds/compounds for further enzymatic screens against specific kinase or other ATP-binding targets in Mycobacterium tuberculosis based on the apparent activity against the whole bacteria in vitro.
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Affiliation(s)
- Robert C Reynolds
- Southern Research Institute, 2000 Ninth Avenue South, Birmingham, AL 35205, USA.
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13
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Zhang X, Yang Y, Zhao M, Liu L, Zheng M, Wang Y, Wu J, Peng S. A class of Trp-Trp-AA-OBzl: Synthesis, in vitro anti-proliferation/in vivo anti-tumor evaluation, intercalation-mechanism investigation and 3D QSAR analysis. Eur J Med Chem 2011; 46:3410-9. [PMID: 21620529 DOI: 10.1016/j.ejmech.2011.05.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 04/20/2011] [Accepted: 05/02/2011] [Indexed: 10/18/2022]
Abstract
From the anti-tumor active N-tryptophanyl-β-carboline-3-carboxylic acid benzyl ester and β-carboline-3-carbonyltryptophan benzyl ester, a pharmacophore, Trp-Trp-OBzl, was drawn. Based on the DOCK scores amino acid residue was inserted into the C-terminus of Trp-Trp-OBzl and twenty Trp-Trp-AA-OBzls (AA = amino acid residues) were provided as DNA intercalators. On the in vitro and in vivo models seventeen Trp-Trp-AA-OBzls were anti-tumor active, and twelve Trp-Trp-AA-OBzls were more active than cytarabine. In acute toxicity assay Trp-Trp-AA-OBzls did not damage the immunologic function and had an LD(50) of more than 500 mg/kg. The relationships of structure and activity were analyzed with 3D QSAR. The action mechanism studies revealed that the in vivo anti-tumor action of Trp-Trp-AA-OBzls was the result of DNA intercalation.
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Affiliation(s)
- Xiaoyi Zhang
- College of Pharmaceutical Sciences, Capital Medical University, No. 10, Beijing 100069, PR China
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14
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A class of novel N-isoquinoline-3-carbonyl-l-amino acid benzylesters: Synthesis, anti-tumor evaluation and 3D QSAR analysis. Eur J Med Chem 2011; 46:1672-81. [DOI: 10.1016/j.ejmech.2011.02.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 01/03/2011] [Accepted: 02/12/2011] [Indexed: 11/20/2022]
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Schattel V, Hinselmann G, Jahn A, Zell A, Laufer S. Modeling and benchmark data set for the inhibition of c-Jun N-terminal kinase-3. J Chem Inf Model 2011; 51:670-9. [PMID: 21280627 DOI: 10.1021/ci100410h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The goal of this paper is to present and describe a novel 2D- and 3D-QSAR (quantitative structure-activity relationship) binary classification data set for the inhibition of c-Jun N-terminal kinase-3 with previously unpublished activities for a diverse set of compounds. JNK3 is an important pharmaceutical target because it is involved in many neurological disorders. Accordingly, the development of JNK3 inhibitors has gained increasing interest. 2D and 3D versions of the data set were used, consisting of 313 (70 actives) and 249 (60 actives) compounds, respectively. All compounds, for which activity was only determined for the racemate, were removed from the 3D data set. We investigated the diversity of the data sets by an agglomerative clustering with feature trees and show that the data set contains several different scaffolds. Furthermore, we show that the benchmarks can be tackled with standard supervised learning algorithms with a convincing performance. For the 2D problem, a random decision forest classifier achieves a Matthew's correlation coefficient of 0.744, the 3D problem could be modeled with a Matthew's correlation coefficient of 0.524 with 3D pharmacophores and a support vector machine. The performance of both data sets was evaluated within a nested 10-fold cross-validation. We therefore suggest that the data set is a reasonable basis for generating QSAR models for JNK3 because of its diverse composition and the performance of the classifiers presented in this study.
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Affiliation(s)
- Verena Schattel
- Department of Pharmaceutical and Medicinal Chemistry, Eberhard Karls University of Tübingen, Tübingen, Germany
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16
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Wu J, Li C, Zhao M, Wang W, Wang Y, Peng S. A class of novel carboline intercalators: Their synthesis, in vitro anti-proliferation, in vivo anti-tumor action, and 3D QSAR analysis. Bioorg Med Chem 2010; 18:6220-9. [PMID: 20692841 DOI: 10.1016/j.bmc.2010.07.043] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2010] [Revised: 07/16/2010] [Accepted: 07/17/2010] [Indexed: 10/19/2022]
Abstract
Based on DOCK scores 18 N-(3-benzyloxycarbonylcarboline-1-yl)ethylamino acid benzylesters (6a-r) were synthesized as anti-tumor agents. Their IC(50) values against five human carcinoma cell lines ranged from 11.1muM to more than 100muM. The in vivo assay identified five derivatives of them had no anti-tumor action, the anti-tumor activity of nine derivatives of them equaled that of cytarabine, and the anti-tumor activity of three derivatives of them was higher than that of cytarabine. The UV and fluorescence spectra, as well as the relative viscosity and melting temperature measurements of calf thymus DNA (CT DNA) with and without the representative compound suggested that DNA intercalation could be their action mechanism. The 3D QSAR analysis of N-(3-benzyloxycarbonylcarboline-1-yl)ethylamino acid benzylesters (6a-r) revealed that their in vivo anti-tumor activity significantly depends on the molecular electrostatic and steric fields of the side chain of the amino acid residue.
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Affiliation(s)
- Jianhui Wu
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
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17
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Zhou Y, Zhao M, Wu Y, Li C, Wu J, Zheng M, Peng L, Peng S. A class of novel Schiff's bases: Synthesis, therapeutic action for chronic pain, anti-inflammation and 3D QSAR analysis. Bioorg Med Chem 2010; 18:2165-2172. [PMID: 20176491 DOI: 10.1016/j.bmc.2010.01.075] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2009] [Revised: 01/29/2010] [Accepted: 01/30/2010] [Indexed: 11/26/2022]
Abstract
To discover analgesics for treating chronic pain 17 novel Schiff's bases, N,N'-(Z-allylidene-1,3-diyl)bisamino acid methyl esters were prepared from 1,1,3,3,-tetramethoxypropane and amino acid methyl esters. On tail-flick mouse model 20 micromol/kg of these Schiff's bases were orally administered, the analgesic action started 30 min after administration, reached the maximum 120 min after administration, and at 180 min this action was still observed. On a xylene-induced ear edema mouse model 20 micromol/kg of these Schiff's bases exhibited desirable anti-inflammation. Thus the present Schiff's bases are able to treat chronic pain from inflammation. The effect of the side chains of the amino acid residues of these Schiff's bases on the analgesic activity was explained with 3D QSAR.
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Affiliation(s)
- Yinjian Zhou
- College of Pharmaceutical Sciences, Peking University, Beijing 100083, PR China
| | - Ming Zhao
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Yingting Wu
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Chunyu Li
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Jianhui Wu
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Meiqing Zheng
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Li Peng
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
| | - Shiqi Peng
- College of Pharmaceutical Sciences, Peking University, Beijing 100083, PR China; College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
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18
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Li Z, Chen K, Xie H, Wang Y, Dong F. Cluster Analysis and QSAR Study of Some Anti-hepatitis B Virus Agents Comprising 4-Aryl-6-chloro-quinolin-2-ones and 5-Aryl-7-chloro-1,4-benzodiazepines. CHINESE J CHEM 2009. [DOI: 10.1002/cjoc.201090007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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19
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Huang F, Zhao M, Zhang X, Wang C, Qian K, Kuo RY, Morris-Natschke S, Lee KH, Peng S. Synthesis, DNA intercalation and 3D QSAR analysis of cis-2,4,5-trisubstituted-1,3-dithiolanes as a novel class of antitumor agents. Bioorg Med Chem 2009; 17:6085-95. [DOI: 10.1016/j.bmc.2009.06.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2009] [Revised: 06/03/2009] [Accepted: 06/08/2009] [Indexed: 11/29/2022]
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20
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Zhao M, Liu J, Zhang X, Peng L, Li C, Peng S. 3D QSAR of novel estrogen–RGD peptide conjugates: Getting insight into structural dependence of anti-osteoporosis activity and side effect of estrogen in ERT. Bioorg Med Chem 2009; 17:3680-9. [DOI: 10.1016/j.bmc.2009.03.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2009] [Revised: 03/27/2009] [Accepted: 03/27/2009] [Indexed: 11/29/2022]
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21
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Zhao M, Wang Y, Huo C, Li C, Zhang X, Peng L, Peng S. Stereoselective synthesis of novel N-(α-l-arabinofuranos-1-yl)-l-amino acids. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.01.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Li ZG, Chen KX, Xie HY, Gao JR. Quantitative Structure-Activity Relationship Analysis of Some Thiourea Derivatives with Activities Against HIV-1 (IIIB). ACTA ACUST UNITED AC 2009. [DOI: 10.1002/qsar.200860097] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Chen KX, Xie HY, Li ZG, Gao JR. Quantitative structure-activity relationship studies on 1-aryl-tetrahydroisoquinoline analogs as active anti-HIV agents. Bioorg Med Chem Lett 2008; 18:5381-6. [PMID: 18835162 DOI: 10.1016/j.bmcl.2008.09.056] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2008] [Revised: 07/31/2008] [Accepted: 09/15/2008] [Indexed: 11/28/2022]
Abstract
Predictive quantitative structure-activity relationship analysis was developed for a diverse series of recently synthesized 1-aryl-tetrahydroisoquinoline analogs with anti-HIV activities in this study. The conventional 2D-QSAR models were developed by genetic function approximation (GFA) and stepwise multiple linear regression (MLR) with acceptable explanation of 94.9% and 95.5% and good predicted power of 91.7% and 91.7%, respectively. The results of the 2D-QSAR models were further compared with 3D-QSAR model generated by molecular field analysis (MFA), investigating the substitutional requirements for the favorable receptor-drug interaction and quantitatively indicating the important regions of molecules for their activities. The results obtained by combining these methodologies give insights into the key features for designing more potent analogs against HIV.
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Affiliation(s)
- Ke-xian Chen
- College of Chemical Engineering and Materials Science, Zhejiang University of Technology, 18, Chaowang Road, Hangzhou, Zhejiang 310014, China
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Zheng M, Zhang X, Zhao M, Chang HW, Wang W, Wang Y, Peng S. (3S)-N-(L-Aminoacyl)-1,2,3,4-tetrahydroisoquinolines, a class of novel antithrombotic agents: synthesis, bioassay, 3D QSAR, and ADME analysis. Bioorg Med Chem 2008; 16:9574-87. [PMID: 18835178 DOI: 10.1016/j.bmc.2008.09.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2008] [Revised: 09/07/2008] [Accepted: 09/09/2008] [Indexed: 11/26/2022]
Abstract
To increase antithrombotic activity, 3S-tetrahydroisoquinoline-3-carboxylic acid (1) was modified with natural amino acids to form 19 novel dipeptide analogs, 3S-tetrahydroisoquinoline-3-carboxyamino acids (5a-s), targeting the intestinal peptide transport system. In vitro assay of 5a-s indicated that their potencies for inhibiting adenosine diphosphate (ADP), arachidonic acid (AA), platelet-activating factor (PAF), and thrombin (TH)-induced platelet aggregations were higher than that of 1. Additionally, in vivo assay of 5a-s indicated that their potencies for inhibiting thrombogenesis in rats were also higher than that of 1. Among the candidates, 5h with Ser attachment showed the most impressive features for further development. According to molecular field analysis based Cerius(2) QSAR module, two equations (r, 0.961 and 0.988) correlating the structures with both in vitro and in vivo activities of 5a-s were established. ADMET calculations predict higher intestinal absorption for compounds 5a-s. Further investigation with 5h as a lead compound is underway.
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Affiliation(s)
- Meiqing Zheng
- College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China
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Liu J, Zhao M, Cui G, Zhang X, Wang J, Peng S. Methyl (11aS)-1,2,3,5,11,11a-hexahydro-3,3-dimethyl-1-oxo-6H-imidazo-[3',4':1,2]pyridin[3,4-b]indol-2-substituted acetates: synthesis and three-dimensional quantitative structure-activity relationship investigation as a class of novel vasodilators. J Med Chem 2008; 51:4715-23. [PMID: 18616237 DOI: 10.1021/jm800249j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To find selective inhibitor of phosphodiesterase type 5 (PDE5), the essential structure elements of clinically used drugs sildenafil, vardenafil, and tadalafil were combined and a tetracyclic parent was constructed to which in 2-positions substituted acetic acid methylesters were introduced to form 17 novel vasodilators, methyl (11aS)-1,2,3,5,11,11a-hexahydro-3,3-dimethyl-1-oxo-6H-imidazo[3',4':1,2]- pyridin[3,4-b]indol-2-substituted acetates. By molecular field analysis (MFA), an equation of three-dimensional quantitative structure-activity relationship (3D QSAR) was established, which not only revealed the dependence of the in vitro vasorelaxation activities on the structures but also pointed out the way to design new lead compounds properly. Docking these novel vasodilators into the hydrophobic pocket of phosphodiesterase type 5 (PDE5) revealed that their adaptabilities to this pocket did significantly affect on their vasorelaxation activity. Actually, the docking adaptabilities of these novel vasodilators to PDE5 were consistent with the conformational requirements of them to MFA and with the crystal conformation of two representatives.
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Affiliation(s)
- Jiawang Liu
- College of Pharmaceutical Sciences, Capital Medical UniVersity, Beijing 100069, PR China
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