2-Aminobenzoxazole-appended coumarins as potent and selective inhibitors of tumour-associated carbonic anhydrases

We have carried out the design, synthesis, and evaluation of a small library of 2-aminobenzoxazole-appended coumarins as novel inhibitors of tumour-related CAs IX and XII. Substituents on C-3 and/or C-4 positions of the coumarin scaffold, and on the benzoxazole moiety, together with the length of th...

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Main Authors: Alma Fuentes-Aguilar, Penélope Merino-Montiel, Sara Montiel-Smith, Socorro Meza-Reyes, José Luis Vega-Báez, Adrián Puerta, Miguel X. Fernandes, José M. Padrón, Andrea Petreni, Alessio Nocentini, Claudiu T. Supuran, Óscar López, José G. Fernández-Bolaños
Format: Article
Language:English
Published: Taylor & Francis Group 2022-01-01
Series:Journal of Enzyme Inhibition and Medicinal Chemistry
Subjects:
Online Access:http://dx.doi.org/10.1080/14756366.2021.1998026
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author Alma Fuentes-Aguilar
Penélope Merino-Montiel
Sara Montiel-Smith
Socorro Meza-Reyes
José Luis Vega-Báez
Adrián Puerta
Miguel X. Fernandes
José M. Padrón
Andrea Petreni
Alessio Nocentini
Claudiu T. Supuran
Óscar López
José G. Fernández-Bolaños
author_facet Alma Fuentes-Aguilar
Penélope Merino-Montiel
Sara Montiel-Smith
Socorro Meza-Reyes
José Luis Vega-Báez
Adrián Puerta
Miguel X. Fernandes
José M. Padrón
Andrea Petreni
Alessio Nocentini
Claudiu T. Supuran
Óscar López
José G. Fernández-Bolaños
author_sort Alma Fuentes-Aguilar
collection DOAJ
description We have carried out the design, synthesis, and evaluation of a small library of 2-aminobenzoxazole-appended coumarins as novel inhibitors of tumour-related CAs IX and XII. Substituents on C-3 and/or C-4 positions of the coumarin scaffold, and on the benzoxazole moiety, together with the length of the linker connecting both units were modified to obtain useful structure-activity relationships. CA inhibition studies revealed a good selectivity towards tumour-associated CAs IX and XII (Ki within the mid-nanomolar range in most of the cases) in comparison with CAs I, II, IV, and VII (Ki > 10 µM); CA IX was found to be slightly more sensitive towards structural changes. Docking calculations suggested that the coumarin scaffold might act as a prodrug, binding to the CAs in its hydrolysed form, which is in turn obtained due to the esterase activity of CAs. An increase of the tether length and of the substituents steric hindrance was found to be detrimental to in vitro antiproliferative activities. Incorporation of a chlorine atom on C-3 of the coumarin moiety achieved the strongest antiproliferative agent, with activities within the low micromolar range for the panel of tumour cell lines tested.
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spelling doaj.art-a6eef15339bd494b8cace42877923ed92022-12-21T18:12:07ZengTaylor & Francis GroupJournal of Enzyme Inhibition and Medicinal Chemistry1475-63661475-63742022-01-0137116817710.1080/14756366.2021.199802619980262-Aminobenzoxazole-appended coumarins as potent and selective inhibitors of tumour-associated carbonic anhydrasesAlma Fuentes-Aguilar0Penélope Merino-Montiel1Sara Montiel-Smith2Socorro Meza-Reyes3José Luis Vega-Báez4Adrián Puerta5Miguel X. Fernandes6José M. Padrón7Andrea Petreni8Alessio Nocentini9Claudiu T. Supuran10Óscar López11José G. Fernández-Bolaños12Facultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de PueblaFacultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de PueblaFacultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de PueblaFacultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de PueblaFacultad de Ciencias Químicas, Ciudad Universitaria, Benemérita Universidad Autónoma de PueblaBioLab, Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG), Universidad de La LagunaBioLab, Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG), Universidad de La LagunaBioLab, Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO-AG), Universidad de La LagunaNEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of FlorenceNEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of FlorenceNEUROFARBA Department, Sezione di Scienze Farmaceutiche e Nutraceutiche, University of FlorenceDepartamento de Química Orgánica, Facultad de Química, Universidad de SevillaDepartamento de Química Orgánica, Facultad de Química, Universidad de SevillaWe have carried out the design, synthesis, and evaluation of a small library of 2-aminobenzoxazole-appended coumarins as novel inhibitors of tumour-related CAs IX and XII. Substituents on C-3 and/or C-4 positions of the coumarin scaffold, and on the benzoxazole moiety, together with the length of the linker connecting both units were modified to obtain useful structure-activity relationships. CA inhibition studies revealed a good selectivity towards tumour-associated CAs IX and XII (Ki within the mid-nanomolar range in most of the cases) in comparison with CAs I, II, IV, and VII (Ki > 10 µM); CA IX was found to be slightly more sensitive towards structural changes. Docking calculations suggested that the coumarin scaffold might act as a prodrug, binding to the CAs in its hydrolysed form, which is in turn obtained due to the esterase activity of CAs. An increase of the tether length and of the substituents steric hindrance was found to be detrimental to in vitro antiproliferative activities. Incorporation of a chlorine atom on C-3 of the coumarin moiety achieved the strongest antiproliferative agent, with activities within the low micromolar range for the panel of tumour cell lines tested.http://dx.doi.org/10.1080/14756366.2021.1998026carbonic anhydrasescoumarinsbenzoxazolesantiproliferative agentsdocking
spellingShingle Alma Fuentes-Aguilar
Penélope Merino-Montiel
Sara Montiel-Smith
Socorro Meza-Reyes
José Luis Vega-Báez
Adrián Puerta
Miguel X. Fernandes
José M. Padrón
Andrea Petreni
Alessio Nocentini
Claudiu T. Supuran
Óscar López
José G. Fernández-Bolaños
2-Aminobenzoxazole-appended coumarins as potent and selective inhibitors of tumour-associated carbonic anhydrases
Journal of Enzyme Inhibition and Medicinal Chemistry
carbonic anhydrases
coumarins
benzoxazoles
antiproliferative agents
docking
title 2-Aminobenzoxazole-appended coumarins as potent and selective inhibitors of tumour-associated carbonic anhydrases
title_full 2-Aminobenzoxazole-appended coumarins as potent and selective inhibitors of tumour-associated carbonic anhydrases
title_fullStr 2-Aminobenzoxazole-appended coumarins as potent and selective inhibitors of tumour-associated carbonic anhydrases
title_full_unstemmed 2-Aminobenzoxazole-appended coumarins as potent and selective inhibitors of tumour-associated carbonic anhydrases
title_short 2-Aminobenzoxazole-appended coumarins as potent and selective inhibitors of tumour-associated carbonic anhydrases
title_sort 2 aminobenzoxazole appended coumarins as potent and selective inhibitors of tumour associated carbonic anhydrases
topic carbonic anhydrases
coumarins
benzoxazoles
antiproliferative agents
docking
url http://dx.doi.org/10.1080/14756366.2021.1998026
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