Are Terminal Alkynes Necessary for MAO-A/MAO-B Inhibition? A New Scaffold Is Revealed.
Molecules
; 29(11)2024 May 24.
Article
in En
| MEDLINE
| ID: mdl-38893361
ABSTRACT
A versatile family of quaternary propargylamines was synthesized employing the KA2 multicomponent reaction, through the single-step coupling of a number of amines, ketones, and terminal alkynes. Sustainable synthetic procedures using transition metal catalysts were employed in all cases. The inhibitory activity of these molecules was evaluated against human monoaminoxidase (hMAO)-A and hMAO-B enzymes and was found to be significant. The IC50 values for hMAO-B range from 152.1 to 164.7 nM while the IC50 values for hMAO-A range from 765.6 to 861.6 nM. Furthermore, these compounds comply with Lipinski's rule of five and exhibit no predicted toxicity. To understand their binding properties with the two target enzymes, key interactions were studied using molecular docking, all-atom molecular dynamics (MD) simulations, and MM/GBSA binding free energy calculations. Overall, herein, the reported family of propargylamines exhibits promise as potential treatments for neurodegenerative disorders, such as Parkinson's disease. Interestingly, this is the first time a propargylamine scaffold bearing an internal alkyne has been reported to show activity against monoaminoxidases.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pargyline
/
Alkynes
/
Molecular Dynamics Simulation
/
Molecular Docking Simulation
/
Monoamine Oxidase
/
Monoamine Oxidase Inhibitors
Limits:
Humans
Language:
En
Journal:
Molecules
/
Molecules (Basel)
Journal subject:
BIOLOGIA
Year:
2024
Document type:
Article
Affiliation country:
Country of publication: