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1.
Drug Discov Today ; 26(4): 1097-1105, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33497830

RESUMO

Owing to their structural diversity, peptides are a unique source of innovative active ingredients. However, their development has been challenging because of their disadvantageous pharmacokinetic (PK) properties. Over the past decade, many attempts have been made to improve the oral bioavailability of peptide drugs. In this review, we highlight the most recent and promising techniques aimed at the improvement of the oral bioavailability of peptides. The most recent findings will influence future approaches of pharmaceutical companies in the development of new, more efficient, and safer orally delivered peptides.


Assuntos
Administração Oral , Sistemas de Liberação de Medicamentos/métodos , Peptídeos , Disponibilidade Biológica , Descoberta de Drogas/tendências , Humanos , Peptídeos/farmacocinética , Peptídeos/uso terapêutico
3.
J Med Chem ; 52(23): 7376-9, 2009 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-19650630

RESUMO

New linear and cyclic guanidines were synthesized and tested in vitro for their antifungal activity toward clinically relevant strains of Candida species, in comparison to fluconazole. Macrocyclic compounds showed a minimum inhibitory concentration in the micromolar range and a biological activity profile in some cases better than that of fluconazole. One macrocyclic derivative was also tested against Aspergillus species and showed high antifungal activity comparable to that of amphotericin B and itraconazole.


Assuntos
Aspergillus/efeitos dos fármacos , Candida/efeitos dos fármacos , Guanidina/análogos & derivados , Compostos Macrocíclicos/síntese química , Compostos Macrocíclicos/farmacologia , Ureia/análogos & derivados , Antifúngicos/síntese química , Antifúngicos/química , Antifúngicos/farmacologia , Desenho de Fármacos , Guanidina/síntese química , Guanidina/química , Guanidina/farmacologia , Humanos , Compostos Macrocíclicos/química , Testes de Sensibilidade Microbiana , Ureia/síntese química , Ureia/química , Ureia/farmacologia
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