Straightforward Synthesis of Various 2,3-Diarylimidazo[1,2-<i>a</i>]pyridines in PEG<sub>400</sub>Medium through One-Pot Condensation and C-H Arylation
PEG400 is described herein as a suitable medium for the condensation of various 2-amino pyridines with α-bromo ketones. 2-Arylimidazo[1,2-a]pyridines were synthetized in a short time through microwave irradiation in moderate to excellent yields. After optimization, a convenient one-pot process enabled access to 2,3-diarylimidazo[1,2-a]pyridines by using a reduced amount of palladium catalyst without
Synthesis and biological evaluation of 2,3-diarylimidazo[1,2-a]pyridines as antileishmanial agents
作者:Sophie Marhadour、Pascal Marchand、Fabrice Pagniez、Marc-Antoine Bazin、Carine Picot、Olivier Lozach、Sandrine Ruchaud、Maud Antoine、Laurent Meijer、Najma Rachidi、Patrice Le Pape
DOI:10.1016/j.ejmech.2012.10.048
日期:2012.12
A novel series of 2,3-diarylimidazo[1,2-a]pyridines was synthesized and evaluated for their antileishmanial activities. Four derivatives exhibited good activity against the promastigote and intracellular amastigote stages of Leishmania major, coupled with a low cytotoxicity against the HeLa human cell line. The impact of compound lipophilicity on antiparasitic activities was investigated by Log D comparison. Although LmCK1 could be the parasitic target for three compounds (13, 18, 21), the inhibition of another target is under study to explain the antileishmanial effect of the most promising compounds. (C) 2012 Elsevier Masson SAS. All rights reserved.