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Refining the Structural Features of Chromones as Selective MAO-B Inhibitors: Exploration of Combined Pharmacophore-Based 3D-QSAR and Quantum Chemical Studies

Publication Type : Journal Article

Publisher : John Wiley & Sons, Ltd

Source : ChemistrySelectChemistrySelectChemistrySelect, John Wiley & Sons, Ltd, Volume 2, Issue 35, p.11645 - 11652 (2017)

Url : https://doi.org/10.1002/slct.201701213

Keywords : Chromone, DFT, electrostatic potential, Hydrophobic interaction, MAO inhibition, MAO−B, 3D-QSAR, pharmacophore, Pharmacophore modelling, QSAR

Campus : Kochi

School : School of Pharmacy

Center : Amrita Institute of Medical Science

Department : Pharmaceutical Chemistry & Analysis

Year : 2017

Abstract : Abstract Synthetic chromones are considered as a validated target of the inhibition of monoamine oxidase-B and its relationship to various neurodegenerative diseases is increasing. Herein described is pharmacophore generation and atom-based 3D-QSAR analysis of previously reported chromone based MAO?B inhibitors in order to get insight into their structural requirements responsible for high affinity. The best four-point pharmacophore model with five features AAHRR-3, two hydrogen bond acceptor (A),one hydrophobic groups (H) and two aromatic rings (R) as pharmacophore features was developed by PHASE module of Schrodinger suite. The pharmacophore hypothesis yielded a statistically significant 3D-QSAR model, with a good correlation coefficient (R2=0. 8828), cross validation coefficient (Q2= 0. 7036), and F value 50.2. In this series, the potent molecule 6-(3-bromobenzyl)-4H-chromen-4-one (5) is further exploited for electrostatic potential surface and analyze the natural bond orbital toward the binding characteristics by using density functional theory calculations.

Cite this Research Publication : Bijo Mathew, Dev, S., Joy, M., Mathew, G. E., Marathakam, A., and Krishnan, G. K., “Refining the Structural Features of Chromones as Selective MAO-B Inhibitors: Exploration of Combined Pharmacophore-Based 3D-QSAR and Quantum Chemical Studies”, ChemistrySelectChemistrySelectChemistrySelect, vol. 2, no. 35, pp. 11645 - 11652, 2017.

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