868662-45-7Relevant academic research and scientific papers
Antimalarial activity of 4-(5-trifluoromethyl-1H-pyrazol-1-yl)-chloroquine analogues
Cunico, Wilson,Cechinel, Cleber A.,Bonacorso, Helio G.,Martins, Marcos A. P.,Zanatta, Nilo,De Souza, Marcus V.N.,Freitas, Isabela O.,Soares, Rodrigo P. P.,Krettli, Antoniana U.
, p. 649 - 653 (2007/10/03)
The antimalarial activity of chloroquine-pyrazole analogues, synthesized from the reaction of 1,1,1-trifluoro-4-methoxy-3-alken-2-ones with 4-hydrazino-7-chloroquinoline, has been evaluated in vitro against a chloroquine resistant Plasmodium falciparum clone. Parasite growth in the presence of the test drugs was measured by incorporation of [3H]hypoxanthine in comparison to controls with no drugs. All but one of the eight (4,5-dihydropyrazol-1-yl) chloroquine 2 derivatives tested showed a significant activity in vitro, thus, are a promising new class of antimalarials. The three most active ones were also tested in vivo against Plasmodium berghei in mice. However, the (pyrazol-1-yl) chloroquine 3 derivatives were mostly inactive, suggesting that the aromatic functionality of the pyrazole ring was critical.
An efficient and regiospecific preparation of trifluoromethyl substituted 4-(1H-pyrazol-1-yl)-7-chloroquinolines
Bonacorso, Helio G.,Cechinel, Cleber A.,Oliveira, Marli R.,Costa, Michelle B.,Martins, Marcos A. P.,Zanatta, Nilo,Flores, Alex F. C.
, p. 1055 - 1061 (2007/10/03)
A new series of 4-[3-alkyl(aryl)(heteroaryl)-5-hydroxy-5-trifluoromethyl-4, 5-dihydro-1H-pyrazol-1-yl]-7-chloroquinolines, where [alkyl = CH3; aryl = C6H5, 4-CH3C6H4, 4-FC6H
