Novel HCV NS5B polymerase inhibitors derived from 4-(1′,1′-dioxo-1′,4′-dihydro-1′λ6-benzo[1′,2′,4′]thiadiazin-3′-yl)-5-hydroxy-2H-pyridazin-3-ones. Part 3: Further optimization of the 2-, 6-, and 7′-substituents and initial pharmacokinetic assessments
摘要:
5-Hydroxy-3(2H)-pyridazinone derivatives were investigated as inhibitors of genotype 1 HCV NS5B polymerase. Lead optimization led to the discovery of compound 3a, which displayed potent inhibitory activities in biochemical and replicon assays [IC50 (1b) < 10 nM; IC50 (1a) = 22 nM; EC50 (1b) = 5 nM], good stability toward human liver microsomes (HLM t(1/2) > 60 min), and high ratios of liver to plasma concentrations 12 h after a single oral administration to rats. (c) 2008 Published by Elsevier Ltd.
[EN] PYRIDAZINONE COMPOUNDS<br/>[FR] COMPOSÉS DE TYPE PYRIDAZINONE
申请人:ANADYS PHARMACEUTICALS INC
公开号:WO2008082725A1
公开(公告)日:2008-07-10
[EN] The invention is directed to pyridazinone compounds and pharmaceutical compositions containing such compounds that are useful in treating infections by hepatitis C virus. [FR] L'invention porte sur des composés de type pyridazinone et sur des compositions pharmaceutiques contenant de tels composés qui sont utiles dans le traitement d'infections par le virus de l'hépatite C.