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Surface-active ionic liquids derived from antimalarial drugs and natural lipids...

Ferraz, Ricardo; Silva, Ana Teresa; Oliveira, Isabel S.; Duarte, Denise; Moita, Diana; Nogueira, Fátima; Prudêncio, Miguel; Gomes, Paula

The use of Ionic Liquids (ILs) in Medicinal and Pharmaceutical Chemistry has been greatly evolving since they were first used as alternative solvents for the chemical synthesis of active pharmaceutical ingredients (APIs). ILs are now used with other purposes in this area, such as adjuvants in drug formulation and delivery, or even as bioactive compounds per se. New ionic structures with biologically relevant pr...


Combining natural bile acids with old basic drugs affords new triple stage anti...

Silva, Ana Teresa; Oliveira, Isabel; Duarte, Denise; Moita, Diana; Prudêncio, Miguel; Nogueira, Fátima; Ferraz, Ricardo; Marques, Eduardo F.

Ionic liquids (ILs) are special organic salts that have been gaining momentum in medicinal chemistry. Despite their simple and cost-effective synthesis, ILs offer an easy access to structures of biological interest by combining bioactive molecules with opposite polarities, e.g., via simple ionic pairing of an acid with a base. This makes ILs of special interest for treating malaria. Since this disease is preval...


Facile Access to Structurally Diverse Antimalarial Indoles Using a One-Pot A3 C...

da Silva, Gustavo; Luz, André F. S.; Duarte, Denise; Fontinha, Diana; Silva, Vera L. M.; Almeida Paz, Filipe A.; Madureira, Ana M.; Simões, Sandra

A multistep and diversity-oriented synthetic route aiming at the A3 coupling/domino cyclization of o-ethynyl anilines, aldehydes and s-amines is described. The preparation of the corresponding precursors included a series of transformations, such as haloperoxidation and Sonogashira cross-coupling reactions, amine protection, desilylation and amine reduction. Some products of the multicomponent reaction underwen...


Facile access to structurally diverse antimalarial indoles using a one‐pot A3 c...

Silva, Gustavo Da; Luz, André F. S.; Duarte, Denise; Fontinha, Diana; Silva, Vera L. M.; Almeida Paz, Filipe A.; Madureira, Ana Margarida

A multistep and diversity-oriented synthetic route aiming at the A3 coupling/domino cyclization of o-ethynyl anilines, aldehydes and s-amines is described. The preparation of the corresponding precursors included a series of transformations, such as haloperoxidation and Sonogashira cross-coupling reactions, amine protection, desilylation and amine reduction. Some products of the multicomponent reaction underwen...


Synthesis od new surface-active ionic liquids derived from antimalarial drugs a...

Silva, Ana Teresa; Oliveira, Isabel; Duarte, Denise; Moita, Diana; Prudêncio, Miguel; Nogueira, Fátima; Teixeira, Cátia; Ferraz, Ricardo

Malaria is a parasitic disease that occurs mostly in low-income countries, thus its containment or, ultimately, eradication demands new methodologies and synthetic strategies that are simple and inexpensive. Ionic liquids (ILs) may assume a prominent role in this scenario, as they are catching the attention of the Medicinal Chemistry community owing to their intrinsic biological activity and affordable synthesi...


Drug-derived surface-active ionic liquids: a cost-effective way to expressively...

Silva, Ana Teresa; Oliveira, Isabel S.; Gomes, Joana; Aguiar, Luísa; Fontinha, Diana; Duarte, Denise; Nogueira, Fátima; Prudêncio, Miguel

Inspired by previous disclosure of room-temperature ionic liquids derived from primaquine and cinnamic acids, which displayed slightly enhanced blood-stage activity compared to the parent drug, we have now combined this emblematic antimalarial with natural fatty acids. This affords surface-active ionic liquids whose liver-stage antiplasmodial activity is either retained or slightly enhanced, while revealing blo...


Drug‐derived surface‐active ionic liquids: a cost‐effective way to expressively...

Silva, Ana Teresa; Oliveira, Isabel S.; Gomes, Joana; Aguiar, Luísa; Fontinha, Diana; Duarte, Denise; Nogueira, Fátima; Prudêncio, Miguel

Inspired by previous disclosure of room-temperature ionic liquids derived from primaquine and cinnamic acids, which displayed slightly enhanced blood-stage activity compared to the parent drug, we have now combined this emblematic antimalarial with natural fatty acids. This affords surface-active ionic liquids whose liver-stage antiplasmodial activity is either retained or slightly enhanced, while revealing blo...


Adequação terapêutica da utilização de inibidores da bomba de protões: estudo e...

Espírito Santo, Margarida; De Sousa-Coelho, Ana Luísa; Duarte, Denise; Nascimento, Tânia

O aumento acentuado do consumo de fármacos inibidores da bomba de protões (IBPs) que se tem verificado nos últimos cinco anos fez surgir a necessidade de analisar a sua utilização na prática clínica atual e avaliar as possíveis consequências associadas ao seu consumo. Pretendeu-se com este estudo analisar a adequação terapêutica da utilização de IBPs na prática clínica de uma farmácia comunitária.


Surgical site infection in patients submitted to orthopedic surgery: the NNIS r...

Ercole, Flávia Falci; Chianca, Tânia Couto Machado; Duarte, Denise; Starling, Carlos Ernesto Ferreira; Carneiro, Mariângela

La aplicabilidad del Índice de Riesgo de Infección Quirúrgica del National Nosocomial Infection Surveillance-NNIS ha sido evaluada en cuanto a su desempeño en diferentes cirugías. En algunos procedimientos es necesaria la inclusión de otras variables de predicción. El objetivo de este estudio fue evaluar la aplicabilidad del Índice NNIS para la predicción de la Infección de Sitio Quirúrgico en cirugías ortopédi...

Date: 2011   |   Origin: Oasisbr

Apresentação

Duarte, Denise

Date: 2008   |   Origin: Oasisbr

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