Article (Scientific journals)
Easy preparation of novel 3,3-dimethyl-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide: Molecular structure, Hirshfeld surface, NCI analyses and molecular docking on AMPA receptors
Etse, Koffi Senam; Zaragoza, Guillermo; Etse, Kodjo Djidjolé
2021In Journal of Molecular Structure, p. 130435
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Keywords :
Benzothiadiazine 1,1-dioxide; X-ray molecular structures; Hirshfeld surface; NCI plot; Molecular docking; AMPA receptors
Abstract :
[en] We present in this study the synthesis and characterization of a new 3,3-dimethyl-substituted 1,2,4-benzothiadiazine 1,1-dioxide. 3,3-dimethyl-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide 10, was obtained by reacting 2-aminobenzenesulfonamide with acetone. The molecular structures of the starting sulfonamide and the new benzothiadiazine were obtained by X-ray diffraction analysis and the interactions like hydrogen bonds stabilizing the crystal packing were discussed. The contacts are confirmed by non-covalent interaction analysis. Analyses of Hirshfeld surface mapped over di, de, dnorm and shape-index were further used to identify the intermolecular interactions. The fingerprint histogram allow to show that H•••H (45.7%) and O•••H (30.1%) contacts are the dominant interactions in the crystal packing of 10. The effects of the molecular environment were accessed by analyzing the electron density isosurface and the 3D-topology of energy frameworks. The prediction of physicochemical properties suggested that 10 could be considered as a lead-like drug. Therefore, molecular docking study was performed on the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) and suggested that 10 could interact with the allosteric site located on the ligand binding domain of AMPAR and could be a positive allosteric modulator. Docking results show that 10 can bind in a symmetrical way in the GluA2 ligand binding domain with two molecules at the dimer interface. The results also demonstrated that the presence of two methyl groups at the 3-position of the thiadiazine ring induced rotation of 10 in the binding site leading to close contacts with Pro494, Ser497, Ser729 and Ser754.
Research center :
CIRM - Centre Interdisciplinaire de Recherche sur le Médicament - ULiège
Disciplines :
Chemistry
Author, co-author :
Etse, Koffi Senam ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Zaragoza, Guillermo;  Universidade de Santiago de Compostela, Spain. > Campus VIDA, 15782 Santiago de Compostela, > Unidade de Difracción de Raios X, RIAIDT.
Etse, Kodjo Djidjolé
Language :
English
Title :
Easy preparation of novel 3,3-dimethyl-3,4-dihydro-2H-1,2,4-benzothiadiazine 1,1-dioxide: Molecular structure, Hirshfeld surface, NCI analyses and molecular docking on AMPA receptors
Publication date :
02 April 2021
Journal title :
Journal of Molecular Structure
ISSN :
0022-2860
eISSN :
1872-8014
Publisher :
Elsevier, Netherlands
Pages :
130435
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 24 April 2021

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