Potencial eletrostático molecular e modelos de reconhecimento de padrões para desenhar derivados da pentamidina potencialmente ativos contra Trypanosoma brucei rhodesiense

Autores

DOI:

https://doi.org/10.33448/rsd-v10i12.20207

Palavras-chave:

Potencial eletrostático molecular; Modelos de reconhecimento de padrões; Investigação de derivados da pentamidina; Desenho de derivados da pentamidina.

Resumo

Potencial eletrostático molecular (MEP) e reconhecimento de padrão (RP) foram usadospara desenhar derivados da pentamidina potencialmente ativos contra Trypanosome brucei rhodesiense (T. b. rhodesiense). Modelos de RP: Análise de Componentes Principais, Modelo PCA; Análise de Agrupamento por Métodos Hieráquicos, Modelo HCA; K-ésimos Vizinhos mais Próximos, Modelo KNN; Modelagem Independente Suave de Analogia de Classe, Modelo SIMCA; e Análise de Discriminante por Etapas, Modelo SDA, foram construídos reduzindo a dimensionalidade de uma matriz de dados para vinte e oito derivativos de pentamidina e permitiram que os compostos fossem classificados em duas classes: mais ativos e menos ativos, de acordo com seus graus de atividade contra T. b. rhodesiense. O estudo mostrou que as propriedades energia do HOMO (orbital molecular ocupado mais alto), VOL (volume molecular) e ASA_P (área de superfície acessível à água de todos os átomos polares (½qi½³ 0,2) são as mais relevantes para a construção dos modelos. As principais características estruturais necessárias para a atividade biológica investigada através do MEP foram usadas como diretrizes no desenho de treze novos compostos, que foram avaliados pelos modelos de RP como mais ativos ou menos ativos contra T. b. rhodesiense. A aplicação dos modelos de RP indicou nove compostos promissores (29, 30, 31, 32, 33, 36, 37, 39 e 40) para síntese e ensaios biológicos.

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19/09/2021

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OLIVEIRA, L. F. S. de .; CORDEIRO, H. C. .; BRITO, H. G. de .; PINHEIRO, A. C. B. .; SANTOS, M. A. B. dos .; BITENCOURT, H. R.; FIGUEIREDO, A. F. de .; ARAÚJO, J. de J. O. .; GIL, F. dos S. .; FARIAS, M. de S. .; BARBOSA, J. P. .; PINHEIRO, J. C. Potencial eletrostático molecular e modelos de reconhecimento de padrões para desenhar derivados da pentamidina potencialmente ativos contra Trypanosoma brucei rhodesiense. Research, Society and Development, [S. l.], v. 10, n. 12, p. e261101220207, 2021. DOI: 10.33448/rsd-v10i12.20207. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/20207. Acesso em: 17 jul. 2024.

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