4-Phenethyl-1-Propargylpiperidine-Derived Dual Inhibitors of Butyrylcholinesterase and Monoamine Oxidase B

The multi-target-directed ligands (MTDLs) strategy is encouraged for the development of novel modulators targeting multiple pathways in the neurodegenerative cascade typical for Alzheimer’s disease (AD). Based on the structure of an in-house irreversible monoamine oxidase B (MAO-B) inhibitor, we aim...

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Bibliographic Details
Main Authors: Tjaša Mazej, Damijan Knez, Anže Meden, Stanislav Gobec, Matej Sova
Format: Article
Language:English
Published: MDPI AG 2021-07-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/14/4118
Description
Summary:The multi-target-directed ligands (MTDLs) strategy is encouraged for the development of novel modulators targeting multiple pathways in the neurodegenerative cascade typical for Alzheimer’s disease (AD). Based on the structure of an in-house irreversible monoamine oxidase B (MAO-B) inhibitor, we aimed to introduce a carbamate moiety on the aromatic ring to impart cholinesterase (ChE) inhibition, and to furnish multifunctional ligands targeting two enzymes that are intricately involved in AD pathobiology. In this study, we synthesized three dual hMAO-B/hBChE inhibitors <b>13</b>–<b>15</b>, with compound <b>15</b> exhibiting balanced, low micromolar inhibition of hMAO-B (IC<sub>50 </sub>of 4.3 µM) and hBChE (IC<sub>50</sub> of 8.5 µM). The docking studies and time-dependent inhibition of hBChE confirmed the initial expectation that the introduced carbamate moiety is responsible for covalent inhibition. Therefore, dual-acting compound <b>15</b> represents an excellent starting point for further optimization of balanced MTDLs
ISSN:1420-3049