N-(2-(arylmethylimino)ethyl)-7-chloroquinolin-4-amine derivatives, synthesized by thermal and ultrasonic means, are endowed with anti-Zika virus activity

作者：Barbosa Lima Giselle; da Silveira Pinto Ligia S; Kaiser Carlos R; Wardell James L; De Freitas Caroline S; Vieira Yasmine R; Marttorelli Andressa; Neto Jose Cerbino; Bozza Patricia T; Wardell Solange M S V; de Souza Marcus V N^*; Souza Thiago M L

来源：European Journal of Medicinal Chemistry, 2017, 127: 434-441.

DOI：10.1016/j.ejmech.2017.01.007

• Zika virus
• Quinoline derivatives
• Sonochemical method

Zika virus (ZIKV), an emerging Flavivirus, was recently associated with severe neurological complications and congenital diseases. Therefore, development of antiviral agents capable of inhibiting ZIKV replication is urgent. Chloroquine is a molecule with a confirmed safety history for use with pregnant women, and has been found to exhibit anti-ZIKV activity at concentrations around 10 mu M. This suggests that modifications to the chloroquine structure could be promising for obtaining more effective anti-ZIKV agents. Here, we report the ability of a series of N-(2-(arylmethylimino)ethyl)-7-chloroquinolin-4-amine derivatives to inhibit ZIKV replication in vitro. We have found that the quinoline derivative, N-(2-((5-nitrofuran-2-yl)methylimino)ethyl)-7-chloroquinolin-4-amine, 40, was the most potent compound within this series, reducing ZIKV replication by 72% at 10 M. Compound 40 exhibits an EC50 value of 0.8 0.07 M, compared to that of chloroquine of 12 +/- 3.2 mu M. Good activities were also obtained for other compounds, including those with aryl groups = phenyl, 4-fluorophenyl, 4-nitrophenyl, 2,6dimethoxyphenyl, 3-pyridinyl and 5-nitrothien-2-yl. Syntheses of these quinoline derivatives have been obtained both by thermal and ultrasonic means. The ultrasonic method produced comparable yields to the thermal (reflux) method in very much shorter times 30-180 s compared to 30-180 min reactions times. These results indicate that this group of compounds is a good follow-up point for the potential discovery of new drugs against the Zika disease.

• 出版日期2017-2-15