Investigation of a Novel Series of 2-Hydroxyisoquinoline-1,3(2<i>H</i>,4<i>H</i>)-diones as Human Immunodeficiency Virus Type 1 Integrase Inhibitors
作者:Virginie Suchaud、Fabrice Bailly、Cedric Lion、Christina Calmels、Marie-Line Andréola、Frauke Christ、Zeger Debyser、Philippe Cotelle
DOI:10.1021/jm500109z
日期:2014.6.12
We report herein further insight into the biological activities displayed by a series of 2-hydroxyisoquinoline-1,3(2H,4H)-diones (HIDs). Substitution of the N-hydroxyimide two-metal binding pharmacophore at position 4 by carboxamido side chains was previously shown by us to be fruitful for this scaffold, since strong human immunodeficiency virus type 1 integrase (HIV-1 IN) inhibitors in the low nanomolar range associated with low micromolar anti-HIV activities were obtained. We investigated the influence of substitution at position 7 on biological activity. Introduction of electron-withdrawing functional groups such as the nitro moiety at position 7 led to a noticeable improvement of antiviral activity, down to low nanomolar anti-HIV potencies, with advantageous therapeutic indexes going close to those of the clinically used raltegravir and retained potencies against a panel of IN mutants.