In vitro phenotypic screening of 7-chloro-4-amino(oxy)quinoline derivatives as putative anti- Trypanosoma cruzi agents
作者:Cristina Fonseca-Berzal、Fernando A. Rojas Ruiz、José A. Escario、Vladimir V. Kouznetsov、Alicia Gómez-Barrio
DOI:10.1016/j.bmcl.2013.12.071
日期:2014.2
In this study, a series of 22 pre-synthesized 7-chloro-4-amino(oxy) quinoline derivatives was assayed in vitro as potential antichagasic agents. A primary screening against Trypanosoma cruzi epimastigotes and a non-specific cytotoxicity assay on murine fibroblasts were simultaneously performed, resulting quinolines 3, 7 and 12 with great selectivity (SI) on the extracellular parasite (SI7, SI3, SI12 and SIBZ > 9.44). Therefore, the activity of these derivatives was evaluated on intracellular amastigotes, achieving derivative 7 the best SI (SI = 12.73). These results, supported by the in silico prediction of a good oral bioavailability and a suitable risk profile, propose the 4-amino-7-chloroquinoline scaffold as a potential template for designing trypanocidal prototypes. (C) 2014 Elsevier Ltd. All rights reserved.