219765-34-1Relevant articles and documents
Synthesis of novel 1,2,3-triazole derivatives of isocoumarins and 3,4-dihydroisocoumarin with potential antiplasmodial activity in vitro
Alves, Rosemeire Brondi,Pinto, Ana Claudia de Souza,Santos, Lucas da Silva,Varotti, Fernando de Pilla,da Fonseca, Amanda Luisa,de Carvalho, Matheus Fillipe Langanke,de Freitas, Rossimiriam Pereira,Lopes, Julio César Dias
, p. 820 - 833 (2021/10/21)
Background: Malaria greatly affects the world health, having caused more than 228 million cases only in 2018. The emergence of drug resistance is one of the main problems in its treatment, dem-onstrating the need for the development of new antimalarial drugs. Objective: Synthesis and in vitro antiplasmodial evaluation of triazole compounds derived from isocou-marins and a 3,4-dihydroisocoumarin. Methods: The compounds were synthesized in 4 to 6-step reactions with the formation of the triazole ring via the Copper(I)-catalyzed 1,3-dipolar cycloaddition between isocoumarin or 3,4-dihydroisocoumarin azides and terminal alkynes. This key reaction provided compounds with an un-precedented connection of isocoumarin or 3,4-dihydroisocoumarin and the 1,2,3-triazole ring. The products were tested for their antiplasmodial activity against a Plasmodium falciparum chloroquine resistant and sensitive strains (W2 and 3D7, respectively). Results: Thirty-one substances were efficiently obtained by the proposed routes with an overall yield of 25-53%. The active substances in the antiplasmodial test displayed IC50 values ranging from 0.68-2.89 μM and 0.85-2.07 μM against W2 and 3D7 strains, respectively. Conclusion: This study demonstrated the great potential of isocoumarin or 3,4-dihydroisocoumarin derivatives because practically all the tested substances were active against Plasmodium falciparum.
Synthesis of potential anti-Trypanosoma cruzi azole-naftifine analogues by azide–alkyne click reaction
Callegario Zacchi, Carlos Henrique,Maior Federighi, Stephanie Souto,Ramos Gadelha, Fernanda,Terra Martins, Felipe,Brondi Alves, Rosemeire,de Fátima, ?ngelo
, p. 195 - 197 (2018/04/05)
Twenty novel azole-naftifine analogues were obtained using azide–alkyne click reaction. Five of them were more potent than the positive control naftifine revealing an unprecedented antiproliferative effects against Trypanosoma cruzi.
Synthesis and phytotoxic activity of 1,2,3-triazole derivatives
Borgati, Thiago F.,Alves, Rosemeire B.,Teixeira, Ro?bson R.,De Freitas, Rossimiriam P.,Perdiga?o, Thays G.,Da Silva, Silma F.,Dos Santos, Aline Aparecida,De Jesu?s O. Bastidas, Alberto
, p. 953 - 961 (2013/08/23)
Thirteen triazole derivatives bearing halogenated benzyl substituents were synthesized using the Cu-catalyzed azide-alkyne cycloaddition (CuAAC),a leading example of the click chemistry approach,as the key step. The biological activity of the compounds was evaluated,and it was found that these compounds interfere with the germination and radicle growth (shoots and roots) of two dicotyledonous species,Lactuca sativa and Cucumis sativus,and one monocotyledonous species,Allium cepa. The compounds showed predominantly inhibitory activity related to the evaluated species mainly at the concentration of 10-4 mol L-1. Some of them presented inhibitory activity comparable to 2,4-D (2,4-dichlorophenoxyacetic acid),used as positive control.
