Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design
Autor(a) principal: | |
---|---|
Data de Publicação: | 2005 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/10216/82114 |
Resumo: | A computational study at the density functional theory level was performed on bioactive and model sulfonamides with the aim of determining the factors affecting the acidity of the sulfonamido group. The effects of introducing different substiments at either the para-aryl or the N-1-sulfonamide positions were independently analyzed. A linear correlation was found between sulfonamide acidity and the Hammett constants or charge of the SO2 group of substituents at the para-aryl position. Most N-1-substituents were taken from bacteriostatic sulfonamide structures and presented a more complex behavior, possibly due to a conjugation of steric and electronic factors. In the latter situation, sulfonamide acidity and the charge of the SO2 group were not linearly correlated. Interestingly, the acidity of the sulfonamido group was found to be correlated with the reactivity of sulfa drugs towards acylating agents. The implications for the design of suitable sulfonamide prodrugs are discussed. |
id |
RCAP_0d591bbec2bd36103048fb76ec6620f8 |
---|---|
oai_identifier_str |
oai:repositorio-aberto.up.pt:10216/82114 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug designQuímicaChemical sciencesA computational study at the density functional theory level was performed on bioactive and model sulfonamides with the aim of determining the factors affecting the acidity of the sulfonamido group. The effects of introducing different substiments at either the para-aryl or the N-1-sulfonamide positions were independently analyzed. A linear correlation was found between sulfonamide acidity and the Hammett constants or charge of the SO2 group of substituents at the para-aryl position. Most N-1-substituents were taken from bacteriostatic sulfonamide structures and presented a more complex behavior, possibly due to a conjugation of steric and electronic factors. In the latter situation, sulfonamide acidity and the charge of the SO2 group were not linearly correlated. Interestingly, the acidity of the sulfonamido group was found to be correlated with the reactivity of sulfa drugs towards acylating agents. The implications for the design of suitable sulfonamide prodrugs are discussed.20052005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/82114eng0040-402010.1016/j.tet.2005.01.034Gomes, JRBGomes, Pinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T13:31:57Zoai:repositorio-aberto.up.pt:10216/82114Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:42:04.053458Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design |
title |
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design |
spellingShingle |
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design Gomes, JRB Química Chemical sciences |
title_short |
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design |
title_full |
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design |
title_fullStr |
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design |
title_full_unstemmed |
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design |
title_sort |
Gas-phase acidity of sulfonamides: implications for reactivity and prodrug design |
author |
Gomes, JRB |
author_facet |
Gomes, JRB Gomes, P |
author_role |
author |
author2 |
Gomes, P |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Gomes, JRB Gomes, P |
dc.subject.por.fl_str_mv |
Química Chemical sciences |
topic |
Química Chemical sciences |
description |
A computational study at the density functional theory level was performed on bioactive and model sulfonamides with the aim of determining the factors affecting the acidity of the sulfonamido group. The effects of introducing different substiments at either the para-aryl or the N-1-sulfonamide positions were independently analyzed. A linear correlation was found between sulfonamide acidity and the Hammett constants or charge of the SO2 group of substituents at the para-aryl position. Most N-1-substituents were taken from bacteriostatic sulfonamide structures and presented a more complex behavior, possibly due to a conjugation of steric and electronic factors. In the latter situation, sulfonamide acidity and the charge of the SO2 group were not linearly correlated. Interestingly, the acidity of the sulfonamido group was found to be correlated with the reactivity of sulfa drugs towards acylating agents. The implications for the design of suitable sulfonamide prodrugs are discussed. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005 2005-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/10216/82114 |
url |
https://hdl.handle.net/10216/82114 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0040-4020 10.1016/j.tet.2005.01.034 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799135735753736192 |