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NMR and X-ray diffraction conformational study of guanidines

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Autor(es):
Zampieri, Eduardo Henrique ; dos Anjos, Luana Ribeiro ; Santiago, Pedro Henrique de Oliveira ; Nascimento, Tainara Rosario da Silva ; Ellena, Javier ; Gonzalez, Eduardo Rene Perez
Número total de Autores: 6
Tipo de documento: Artigo Científico
Fonte: Journal of Molecular Structure; v. 1315, p. 10-pg., 2024-06-08.
Resumo

Leishmaniasis is a neglected disease that affects regions such as South Asia, South Africa, and Latin America, less developed regions. The research proposed the conformational study of brominated guanidine compounds with potential antileishmanial activity using Nuclear Magnetic Resonance (NMR) and X-ray diffraction (XRD) techniques. The present study involves the brominated molecules LQOF-G2, LQOF-G30, LQOF-G35 and LQOF-G35Br. The latter was synthesized by the reaction of LQOF-G35 with NBS under IR irradiation at 120 Watts of potency and dichloromethane as solvent by 12 h of exposition. The obtained results demonstrated the efficiency of the bromination method, since two bromine atoms entered the molecule. Furthermore, NMR analysis showed a conformational change from Z to E when compound LQOF-G35 was brominated to LQOF-G35-Br. This behavior was confirmed by a comparative XRD study of the LQOF-G35 and LQOF-G35-Br compounds. The antileishmanial activity of LQOF-G2 e LQOF-G35 motivated the synthesis of new brominated compounds LQOF-G30 e LQOFG35-Br. (AU)

Processo FAPESP: 17/15850-0 - Difração de raios X como ferramenta no desenvolvimento de potenciais fármacos
Beneficiário:Eduardo Ernesto Castellano
Modalidade de apoio: Auxílio à Pesquisa - Temático
Processo FAPESP: 18/00581-7 - Síntese e caraterização de compostos orgânicos com potencial como novos fármacos para disfunções de canais iônicos, tratamento da leishmânia e antitumorais.
Beneficiário:Eduardo Rene Perez Gonzalez
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 21/10066-5 - Estudo cristalográfico e estrutural de novas substâncias com potenciais atividades biológicas
Beneficiário:Pedro Henrique de Oliveira Santiago
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado