Synthesis and leishmanicidal activity of quinoline–triclosan and quinoline–eugenol hybrids
作者:Victor Arango、Jorge J. Domínguez、Wilson Cardona、Sara M. Robledo、Diana L. Muñoz、Bruno Figadere、Jairo Sáez
DOI:10.1007/s00044-011-9886-8
日期:2012.11
In this study, hybrids 7-12 and 19-24 were synthesized via Williamson reaction of O-Quinaldine alkyl bromide plus eugenol and O-triclosan alkyl bromide plus 8-hydroxyquinaldine, respectively. Structures of the products were elucidated by spectroscopic analysis. The compounds synthesized were evaluated for antileishmanial activity against L. panamensis amastigotes and cytotoxic activity against U-937 cells. The compounds 19, 20, and 21 that are 8-hydroxyquinaldine linked to triclosan by 3, 4, and 5-carbon space, respectively, were more active against axenic amastigotes (EC (50) = 23.6, 9.7, and 4.1 mu g/ml, respectively). Compounds 19 and 21 were also active against intracellular amastigotes with EC (50) vales of 6.4 and 2.4 mu g/ml, respectively, making these compounds promising for the development of new antileishmanial drugs.Quinoline-triclosan and quinoline-eugenol hybrids were obtained using Williamson etherification reactions. Leishmanicidal activity and cytotoxicity of these compounds are reported.