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Tugcu G, Koksal M. A QSAR Study for Analgesic and Anti-inflammatory Activities of 5-/6-Acyl-3-alkyl-2-Benzoxazolinone Derivatives. Mol Inform 2018; 38:e1800090. [PMID: 30478892 DOI: 10.1002/minf.201800090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 10/21/2018] [Indexed: 11/09/2022]
Abstract
In this publication, QSAR models were developed to predict analgesic and anti-inflammatory activities of some 2-benzoxazolinone derivatives using multiple linear regression method. The models were validated internally and externally according to the OECD principles. With the help of these models, pronounced molecular properties of these compounds related to activities were also explored. The developed models demonstrated that hydrophobicity, the number of halogens, and the shape of the molecular structure of these candidate drugs are prominent to represent analgesic and anti-inflammatory activities. Based on the previously tested compounds and the developed models, 77 new compounds were designed as potential analgesic and anti-inflammatory drugs. Majority of the newly designed compounds demonstrated promising analgesic and anti-inflammatory activity.
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Affiliation(s)
- Gulcin Tugcu
- Department of Toxicology, Faculty of Pharmacy, Yeditepe University, 34755 Atasehir, Istanbul, Turkey
| | - Meric Koksal
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Yeditepe University, 34755 Atasehir, Istanbul, Turkey
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Laube M, Gassner C, Sharma SK, Günther R, Pigorsch A, König J, Köckerling M, Wuest F, Pietzsch J, Kniess T. Diaryl-Substituted (Dihydro)pyrrolo[3,2,1-hi]indoles, a Class of Potent COX-2 Inhibitors with Tricyclic Core Structure. J Org Chem 2015; 80:5611-24. [PMID: 25909690 DOI: 10.1021/acs.joc.5b00537] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new compound class of diaryl-substituted heterocycles with tricyclic dihydropyrrolo[3,2,1-hi]indole and pyrrolo[3,2,1-hi]indole core structures has been designed and was synthesized by a modular sequence of Friedel-Crafts acylation, amide formation, and McMurry cyclization. This synthesis route represents a novel and versatile access toward dihydropyrrolo[3,2,1-hi]indoles and is characterized by good chemical yields and high modularity. From a set of 19 derivatives, 11 candidates were selected for determination of their COX inhibition potency and were found to be selective inhibitors with high affinity to COX-2 (IC50 ranging from 20-2500 nM and negligible inhibition of COX-1). The binding mode of the novel inhibitors in the active side of COX-2 was calculated in silico using the protein-ligand docking program GOLD by application of the molecular structures of two compounds derived from X-ray crystallography. Two novel compounds with high affinity to COX-2 (6k = 70 nM, 8e = 60 nM) have a fluoro substituent, making them promising candidates for the development of (18)F-radiolabeled COX-2 inhibitors for imaging purposes with positron emission tomography (PET).
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Affiliation(s)
- Markus Laube
- †Helmholtz-Zentrum Dresden-Rossendorf, Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany.,‡Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Cemena Gassner
- †Helmholtz-Zentrum Dresden-Rossendorf, Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany.,‡Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Sai Kiran Sharma
- §Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, Alberta, Canada T6G 1Z2
| | - Robert Günther
- ∥Helmholtz-Zentrum Dresden-Rossendorf, Department of Neuroradiopharmaceuticals, Institute of Radiopharmaceutical Cancer Research, Research Site Leipzig, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Arne Pigorsch
- ○Department of Inorganic Solid State Chemistry, Institute of Chemistry, University of Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
| | - Jonas König
- ○Department of Inorganic Solid State Chemistry, Institute of Chemistry, University of Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
| | - Martin Köckerling
- ○Department of Inorganic Solid State Chemistry, Institute of Chemistry, University of Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
| | - Frank Wuest
- §Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, Alberta, Canada T6G 1Z2
| | - Jens Pietzsch
- †Helmholtz-Zentrum Dresden-Rossendorf, Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany.,‡Department of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Torsten Kniess
- †Helmholtz-Zentrum Dresden-Rossendorf, Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
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Asadollahi-Baboli M. Quantitative structure-activity relationship analysis of human neutrophil elastase inhibitors using shuffling classification and regression trees and adaptive neuro-fuzzy inference systems. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2012; 23:505-520. [PMID: 22452268 DOI: 10.1080/1062936x.2012.665811] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The purpose of this study was to develop quantitative structure-activity relationship models for N-benzoylindazole derivatives as inhibitors of human neutrophil elastase. These models were developed with the aid of classification and regression trees (CART) and an adaptive neuro-fuzzy inference system (ANFIS) combined with a shuffling cross-validation technique using interpretable descriptors. More than one hundred meaningful descriptors, representing various structural characteristics for all 51 N-benzoylindazole derivatives in the data set, were calculated and used as the original variables for shuffling CART modelling. Five descriptors of average Wiener index, Kier benzene-likeliness index, subpolarity parameter, average shape profile index of order 2 and folding degree index selected by the shuffling CART technique have been used as inputs of the ANFIS for prediction of inhibition behaviour of N-benzoylindazole derivatives. The results of the developed shuffling CART-ANFIS model compared to other techniques, such as genetic algorithm (GA)-partial least square (PLS)-ANFIS and stepwise multiple linear regression (MLR)-ANFIS, are promising and descriptive. The satisfactory results r2p = 0.845, Q2(LOO) = 0.861, r2(L25%O) = 0.829, RMSE(LOO) = 0.305 and RMSE(L25%O) = 0.336) demonstrate that shuffling CART-ANFIS models present the relationship between human neutrophil elastase inhibitor activity and molecular descriptors, and they yield predictions in excellent agreement with the experimental values.
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Soltani S, Abolhasani H, Zarghi A, Jouyban A. QSAR analysis of diaryl COX-2 inhibitors: Comparison of feature selection and train-test data selection methods. Eur J Med Chem 2010; 45:2753-60. [DOI: 10.1016/j.ejmech.2010.02.055] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Revised: 02/18/2010] [Accepted: 02/23/2010] [Indexed: 11/24/2022]
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Cho CH, Neuenswander B, Larock RC. Diverse methyl sulfone-containing benzo[b]thiophene library via iodocyclization and palladium-catalyzed coupling. JOURNAL OF COMBINATORIAL CHEMISTRY 2010; 12:278-85. [PMID: 20055500 PMCID: PMC2834800 DOI: 10.1021/cc900172u] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Parallel solution-phase methods for the synthesis of a 72-membered benzo[b]thiophene library are reported. Medicinally interesting, drug-like, methyl sulfone-substituted benzo[b]thiophenes have been prepared by the palladium-catalyzed substitution of 3-iodobenzo[b]thiophenes by Suzuki-Miyaura, Sonogashira, Heck, carboalkoxylation, and aminocarbonylation chemistry. The key intermediates for library generation, methyl sulfone-containing 3-iodobenzo[b]thiophenes, are readily prepared by iodocyclization and oxidation methodologies from readily available alkynes.
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Affiliation(s)
- Chul-Hee Cho
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - Benjamin Neuenswander
- University of Kansas NIH Center of Excellence in Chemical Methodologies and Library Development, Lawrence, Kansas 66047
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Hemmateenejad B, Sabet R, Fassihi A. Quantitative Structure-Activity Relationship Studies on 2-Amino-6-arylsulfonylbenzonitriles as Human Immunodeficiency Viruses Type 1 Reverse Transcriptase Inhibitors Using Descriptors Obtained from Substituents and Whole Molecular Structures. Chem Biol Drug Des 2009; 74:405-15. [DOI: 10.1111/j.1747-0285.2009.00871.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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