Design and evaluation of selective butyrylcholinesterase inhibitors based on Cinchona alkaloid scaffold.

This paper describes the synthesis and anticholinesterase potency of Cinchona-based alkaloids; ten quaternary derivatives of cinchonines and their corresponding pseudo-enantiomeric cinchonidines. The quaternization of quinuclidine moiety of each compound was carried out with groups diverse in their...

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Main Authors: Anita Bosak, Alma Ramić, Tamara Šmidlehner, Tomica Hrenar, Ines Primožič, Zrinka Kovarik
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2018-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC6173406?pdf=render
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author Anita Bosak
Alma Ramić
Tamara Šmidlehner
Tomica Hrenar
Ines Primožič
Zrinka Kovarik
author_facet Anita Bosak
Alma Ramić
Tamara Šmidlehner
Tomica Hrenar
Ines Primožič
Zrinka Kovarik
author_sort Anita Bosak
collection DOAJ
description This paper describes the synthesis and anticholinesterase potency of Cinchona-based alkaloids; ten quaternary derivatives of cinchonines and their corresponding pseudo-enantiomeric cinchonidines. The quaternization of quinuclidine moiety of each compound was carried out with groups diverse in their size: methyl, benzyl and differently meta- and para-substituted benzyl groups. All of the prepared compounds reversibly inhibited human butyrylcholinesterase and acetylcholinesterase with Ki constants within nanomolar to micromolar range. Five cinchonidine derivatives displayed 95-510 times higher inhibition selectivity to butyrylcholinesterase over acetylcholinesterase and four were potent butyrylcholinesterase inhibitors with Ki constants up to 100 nM, of which N-para-bromobenzyl cinchonidinium bromide can be considered a lead for further modifications and optimizations for possible use in the treatment of neurodegenerative diseases.
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spelling doaj.art-20c29f790a65481facfcc9745baaefa02022-12-21T18:44:37ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-011310e020519310.1371/journal.pone.0205193Design and evaluation of selective butyrylcholinesterase inhibitors based on Cinchona alkaloid scaffold.Anita BosakAlma RamićTamara ŠmidlehnerTomica HrenarInes PrimožičZrinka KovarikThis paper describes the synthesis and anticholinesterase potency of Cinchona-based alkaloids; ten quaternary derivatives of cinchonines and their corresponding pseudo-enantiomeric cinchonidines. The quaternization of quinuclidine moiety of each compound was carried out with groups diverse in their size: methyl, benzyl and differently meta- and para-substituted benzyl groups. All of the prepared compounds reversibly inhibited human butyrylcholinesterase and acetylcholinesterase with Ki constants within nanomolar to micromolar range. Five cinchonidine derivatives displayed 95-510 times higher inhibition selectivity to butyrylcholinesterase over acetylcholinesterase and four were potent butyrylcholinesterase inhibitors with Ki constants up to 100 nM, of which N-para-bromobenzyl cinchonidinium bromide can be considered a lead for further modifications and optimizations for possible use in the treatment of neurodegenerative diseases.http://europepmc.org/articles/PMC6173406?pdf=render
spellingShingle Anita Bosak
Alma Ramić
Tamara Šmidlehner
Tomica Hrenar
Ines Primožič
Zrinka Kovarik
Design and evaluation of selective butyrylcholinesterase inhibitors based on Cinchona alkaloid scaffold.
PLoS ONE
title Design and evaluation of selective butyrylcholinesterase inhibitors based on Cinchona alkaloid scaffold.
title_full Design and evaluation of selective butyrylcholinesterase inhibitors based on Cinchona alkaloid scaffold.
title_fullStr Design and evaluation of selective butyrylcholinesterase inhibitors based on Cinchona alkaloid scaffold.
title_full_unstemmed Design and evaluation of selective butyrylcholinesterase inhibitors based on Cinchona alkaloid scaffold.
title_short Design and evaluation of selective butyrylcholinesterase inhibitors based on Cinchona alkaloid scaffold.
title_sort design and evaluation of selective butyrylcholinesterase inhibitors based on cinchona alkaloid scaffold
url http://europepmc.org/articles/PMC6173406?pdf=render
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