Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity
- Autores
- Acosta, Paola; Insuasty, Braulio; Ortiz, Alejandro; Abonia, Rodrigo; Sortino, Maximiliano Andrés; Zacchino, Susana Alicia Stella; Quiroga, Jairo
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Novel fused pyrazolo[4',3':5,6]pyrido[2,3-d]pyrimidines 5 were prepared by a solvent-free microwave assisted reaction of heterocyclic o-aminonitriles 3 and cyanopyridines 4 in the presence of tBuOK as catalyst. This protocol provides a versatile procedure for the synthesis of the title compounds with the advantages of easy work-up, mild reaction conditions and good yields. All compounds were also tested for antifungal properties against two clinically important fungi; Candida albicans and Cryptococcus neoformans. Several compounds showed moderate activity against both fungi, being 5a the most active compound. Analysis of the antifungal behavior of properly grouped compounds allowed to determine that the position of the N in the pyrimidyl moiety per se does not play a role in the activity. In turn, the type of 4-R substituent appears to influence the activity. In addition to the above considerations, the lipophilicity of compounds measured as log. P showed to be not related to the activity and regarding the dipole moment (D), no net correlation was observed, although it is the most active compounds (% inhibition >50%) that have a D ≥ 7.5, mainly against C. albicans.
Fil: Acosta, Paola. Universidad del Valle; Colombia
Fil: Insuasty, Braulio. Universidad del Valle; Colombia
Fil: Ortiz, Alejandro. Universidad del Valle; Colombia
Fil: Abonia, Rodrigo. Universidad del Valle; Colombia
Fil: Sortino, Maximiliano Andrés. Universidad Nacional de Rosario; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina
Fil: Zacchino, Susana Alicia Stella. Universidad Nacional de Rosario; Argentina
Fil: Quiroga, Jairo. Universidad del Valle; Colombia - Materia
-
ANTIFUNGAL ACTIVITY
CYANOPYRIDINES
MICROWAVE IRRADIATION
O-AMINONITRILES
PYRAZOLOPYRIDOPYRIMIDINES - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/180024
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/180024 |
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network_name_str |
CONICET Digital (CONICET) |
spelling |
Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activityAcosta, PaolaInsuasty, BraulioOrtiz, AlejandroAbonia, RodrigoSortino, Maximiliano AndrésZacchino, Susana Alicia StellaQuiroga, JairoANTIFUNGAL ACTIVITYCYANOPYRIDINESMICROWAVE IRRADIATIONO-AMINONITRILESPYRAZOLOPYRIDOPYRIMIDINEShttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Novel fused pyrazolo[4',3':5,6]pyrido[2,3-d]pyrimidines 5 were prepared by a solvent-free microwave assisted reaction of heterocyclic o-aminonitriles 3 and cyanopyridines 4 in the presence of tBuOK as catalyst. This protocol provides a versatile procedure for the synthesis of the title compounds with the advantages of easy work-up, mild reaction conditions and good yields. All compounds were also tested for antifungal properties against two clinically important fungi; Candida albicans and Cryptococcus neoformans. Several compounds showed moderate activity against both fungi, being 5a the most active compound. Analysis of the antifungal behavior of properly grouped compounds allowed to determine that the position of the N in the pyrimidyl moiety per se does not play a role in the activity. In turn, the type of 4-R substituent appears to influence the activity. In addition to the above considerations, the lipophilicity of compounds measured as log. P showed to be not related to the activity and regarding the dipole moment (D), no net correlation was observed, although it is the most active compounds (% inhibition >50%) that have a D ≥ 7.5, mainly against C. albicans.Fil: Acosta, Paola. Universidad del Valle; ColombiaFil: Insuasty, Braulio. Universidad del Valle; ColombiaFil: Ortiz, Alejandro. Universidad del Valle; ColombiaFil: Abonia, Rodrigo. Universidad del Valle; ColombiaFil: Sortino, Maximiliano Andrés. Universidad Nacional de Rosario; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; ArgentinaFil: Zacchino, Susana Alicia Stella. Universidad Nacional de Rosario; ArgentinaFil: Quiroga, Jairo. Universidad del Valle; ColombiaElsevier2016-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/180024Acosta, Paola; Insuasty, Braulio; Ortiz, Alejandro; Abonia, Rodrigo; Sortino, Maximiliano Andrés; et al.; Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity; Elsevier; Arabian Journal of Chemistry; 9; 3; 1-2016; 481-4921878-5352CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1878535215000714info:eu-repo/semantics/altIdentifier/doi/10.1016/j.arabjc.2015.03.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:45:00Zoai:ri.conicet.gov.ar:11336/180024instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:45:01.038CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity |
title |
Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity |
spellingShingle |
Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity Acosta, Paola ANTIFUNGAL ACTIVITY CYANOPYRIDINES MICROWAVE IRRADIATION O-AMINONITRILES PYRAZOLOPYRIDOPYRIMIDINES |
title_short |
Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity |
title_full |
Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity |
title_fullStr |
Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity |
title_full_unstemmed |
Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity |
title_sort |
Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity |
dc.creator.none.fl_str_mv |
Acosta, Paola Insuasty, Braulio Ortiz, Alejandro Abonia, Rodrigo Sortino, Maximiliano Andrés Zacchino, Susana Alicia Stella Quiroga, Jairo |
author |
Acosta, Paola |
author_facet |
Acosta, Paola Insuasty, Braulio Ortiz, Alejandro Abonia, Rodrigo Sortino, Maximiliano Andrés Zacchino, Susana Alicia Stella Quiroga, Jairo |
author_role |
author |
author2 |
Insuasty, Braulio Ortiz, Alejandro Abonia, Rodrigo Sortino, Maximiliano Andrés Zacchino, Susana Alicia Stella Quiroga, Jairo |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
ANTIFUNGAL ACTIVITY CYANOPYRIDINES MICROWAVE IRRADIATION O-AMINONITRILES PYRAZOLOPYRIDOPYRIMIDINES |
topic |
ANTIFUNGAL ACTIVITY CYANOPYRIDINES MICROWAVE IRRADIATION O-AMINONITRILES PYRAZOLOPYRIDOPYRIMIDINES |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Novel fused pyrazolo[4',3':5,6]pyrido[2,3-d]pyrimidines 5 were prepared by a solvent-free microwave assisted reaction of heterocyclic o-aminonitriles 3 and cyanopyridines 4 in the presence of tBuOK as catalyst. This protocol provides a versatile procedure for the synthesis of the title compounds with the advantages of easy work-up, mild reaction conditions and good yields. All compounds were also tested for antifungal properties against two clinically important fungi; Candida albicans and Cryptococcus neoformans. Several compounds showed moderate activity against both fungi, being 5a the most active compound. Analysis of the antifungal behavior of properly grouped compounds allowed to determine that the position of the N in the pyrimidyl moiety per se does not play a role in the activity. In turn, the type of 4-R substituent appears to influence the activity. In addition to the above considerations, the lipophilicity of compounds measured as log. P showed to be not related to the activity and regarding the dipole moment (D), no net correlation was observed, although it is the most active compounds (% inhibition >50%) that have a D ≥ 7.5, mainly against C. albicans. Fil: Acosta, Paola. Universidad del Valle; Colombia Fil: Insuasty, Braulio. Universidad del Valle; Colombia Fil: Ortiz, Alejandro. Universidad del Valle; Colombia Fil: Abonia, Rodrigo. Universidad del Valle; Colombia Fil: Sortino, Maximiliano Andrés. Universidad Nacional de Rosario; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario; Argentina Fil: Zacchino, Susana Alicia Stella. Universidad Nacional de Rosario; Argentina Fil: Quiroga, Jairo. Universidad del Valle; Colombia |
description |
Novel fused pyrazolo[4',3':5,6]pyrido[2,3-d]pyrimidines 5 were prepared by a solvent-free microwave assisted reaction of heterocyclic o-aminonitriles 3 and cyanopyridines 4 in the presence of tBuOK as catalyst. This protocol provides a versatile procedure for the synthesis of the title compounds with the advantages of easy work-up, mild reaction conditions and good yields. All compounds were also tested for antifungal properties against two clinically important fungi; Candida albicans and Cryptococcus neoformans. Several compounds showed moderate activity against both fungi, being 5a the most active compound. Analysis of the antifungal behavior of properly grouped compounds allowed to determine that the position of the N in the pyrimidyl moiety per se does not play a role in the activity. In turn, the type of 4-R substituent appears to influence the activity. In addition to the above considerations, the lipophilicity of compounds measured as log. P showed to be not related to the activity and regarding the dipole moment (D), no net correlation was observed, although it is the most active compounds (% inhibition >50%) that have a D ≥ 7.5, mainly against C. albicans. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/180024 Acosta, Paola; Insuasty, Braulio; Ortiz, Alejandro; Abonia, Rodrigo; Sortino, Maximiliano Andrés; et al.; Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity; Elsevier; Arabian Journal of Chemistry; 9; 3; 1-2016; 481-492 1878-5352 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/180024 |
identifier_str_mv |
Acosta, Paola; Insuasty, Braulio; Ortiz, Alejandro; Abonia, Rodrigo; Sortino, Maximiliano Andrés; et al.; Solvent-free microwave-assisted synthesis of novel pyrazolo [4′, 3′: 5, 6] pyrido [2, 3-d] pyrimidines with potential antifungal activity; Elsevier; Arabian Journal of Chemistry; 9; 3; 1-2016; 481-492 1878-5352 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1878535215000714 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.arabjc.2015.03.002 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1844614489035505664 |
score |
13.070432 |