作者:Françoise Nepveu、Sothea Kim、Jeremie Boyer、Olivier Chatriant、Hany Ibrahim、Karine Reybier、Marie-Carmen Monje、Severine Chevalley、Pierre Perio、Barbora H. Lajoie、Jalloul Bouajila、Eric Deharo、Michel Sauvain、Rachida Tahar、Leonardo Basco、Antonella Pantaleo、Francesco Turini、Paolo Arese、Alexis Valentin、Eloise Thompson、Livia Vivas、Serge Petit、Jean-Pierre Nallet
DOI:10.1021/jm901300d
日期:2010.1.28
A series of 66 new indolone-N-oxide derivatives was synthesized with three different methods. Compounds were evaluated for in vitro activity against CQ-sensitive (3D7), CQ-resistant (FcB1), and CQ and pyrimethamine cross-resistant (K1) strains of Plasmodium falciparum (P.f.), its well as for cytotoxic concentration (CC50) on MCF7 and KB human tumor Cell lines. Compound 26 (5-methoxy-indolone-N-oxide analogue) had the most potent antiplasmodial activity in vitro (< 3 nM on FcB1 and = 1.7 nM on 3D7) with a very satisfactory selectivity index (CC50 MCF7/IC50 FcB1: 14623; CC50 KB/IC50 3D7: 198823). In in vivo experiments, compound 1 (dioxymethylene derivatives of the indolone-N-oxide) showed the best antiplasmodial activity against Plasmodium berghei, 62% inhibition of the parasitaemia at 30 mg/kg/day.